panic: ASan: Invalid access, 8-byte write in sctp_timer_stop

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syzbot

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Jul 10, 2021, 8:01:21 PM7/10/21

to syzkaller-f...@googlegroups.com

Hello,

syzbot found the following issue on:

HEAD commit: 58080fbc libalias: fix divide by zero causing panic
git tree: https://github.com/freebsd/freebsd-src.git main
console output: https://syzkaller.appspot.com/x/log.txt?x=1437a454300000
dashboard link: https://syzkaller.appspot.com/bug?extid=9e998ed20958f50b993e

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9e998e...@syzkaller.appspotmail.com

Jul 10 16:42:04 ci-freebsd-main-panic: ASan: Invalid access, 8-byte write at 0xfffffe00a3cbd0e0, UMAUseAfterFree(fd)
cpuid = 0
time = 1625935355
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00a5d244d0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00a5d24630
vpanic() at vpanic+0x2c5/frame 0xfffffe00a5d24710
panic() at panic+0xb5/frame 0xfffffe00a5d247d0
__asan_store8_noabort() at __asan_store8_noabort+0x36f/frame 0xfffffe00a5d24890
sctp_timer_stop() at sctp_timer_stop+0x82b/frame 0xfffffe00a5d24900
sctp_stop_timers_for_shutdown() at sctp_stop_timers_for_shutdown+0xd2/frame 0xfffffe00a5d24930
sctp_disconnect() at sctp_disconnect+0x884/frame 0xfffffe00a5d24a30
soclose() at soclose+0x3b3/frame 0xfffffe00a5d24b40
_fdrop() at _fdrop+0x58/frame 0xfffffe00a5d24b70
closef() at closef+0x686/frame 0xfffffe00a5d24d60
fdescfree_fds() at fdescfree_fds+0x1fa/frame 0xfffffe00a5d24dd0
fdescfree() at fdescfree+0x903/frame 0xfffffe00a5d24fc0
exit1() at exit1+0x8b7/frame 0xfffffe00a5d25050
sigexit() at sigexit+0x3e5/frame 0xfffffe00a5d259f0
postsig() at postsig+0x2c4/frame 0xfffffe00a5d25b80
ast() at ast+0xc0e/frame 0xfffffe00a5d25bf0
doreti_ast() at doreti_ast+0x1f/frame 0x7fffffffe330
KDB: enter: panic
[ thread pid 6083 tid 104217 ]
Stopped at kdb_enter+0x6b: movq $0,0x28f9c3a(%rip)
db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b
es 0x3b
fs 0x13
gs 0x1b
ss 0x28
rax 0x12
rcx 0x45f43422d471bd61
rdx 0x1
rbx 0
rsp 0xfffffe00a5d24610
rbp 0xfffffe00a5d24630
rsi 0
rdi 0xffffffff8179b3d9 vprintf+0x319
r8 0x3
r9 0xfffffe00a5d24168
r10 0
r11 0xfffffe009e4c1c30
r12 0xfffffe00a792a000
r13 0xfffffe00a5d24601
r14 0xffffffff82c427e0 .str.18
r15 0xffffffff82c427e0 .str.18
rip 0xffffffff8178edfb kdb_enter+0x6b
rflags 0x46
kdb_enter+0x6b: movq $0,0x28f9c3a(%rip)
db> show proc
Process 6083 (syz-executor.1) at 0xfffffe00a791ea70:
state: NORMAL
uid: 0 gids: 0, 0, 5
parent: pid 790 at 0xfffffe009bf2e538
ABI: FreeBSD ELF64
flag: 0x10002000 flag2: 0
arguments: /root/syz-executor.1
reaper: 0xfffffe0053d51538 reapsubtree: 1
sigparent: 20
vmspace: 0xfffffe00a7aca3e0
(map 0xfffffe00a7aca3e0)
(map.pmap 0xfffffe00a7aca4a0)
(pmap 0xfffffe00a7aca500)
threads: 1
104217 Run CPU 0 syz-executor.1
db> ps
pid ppid pgrp uid state wmesg wchan cmd
6084 810 810 0 R syz-executor.3
6083 790 790 0 RE CPU 0 syz-executor.1
6082 789 789 0 R syz-executor.0
5823 1 789 0 S uwait 0xfffffe00a6e43480 syz-executor.0
5814 1 789 0 S uwait 0xfffffe00a6fcaa80 syz-executor.0
5808 1 789 0 S uwait 0xfffffe00a7471e00 syz-executor.0
5806 1 804 0 S uwait 0xfffffe00a7a27f00 syz-executor.2
5801 1 804 0 S uwait 0xfffffe0097129c00 syz-executor.2
5799 1 804 0 S uwait 0xfffffe009e9fed00 syz-executor.2
5797 1 804 0 S uwait 0xfffffe00a7471f00 syz-executor.2
5796 1 804 0 S uwait 0xfffffe009e9fe600 syz-executor.2
4719 0 0 0 DL aiordy 0xfffffe0097113a70 [aiod4]
4718 0 0 0 RL [aiod3]
4717 0 0 0 DL aiordy 0xfffffe009e51b000 [aiod2]
4716 0 0 0 DL aiordy 0xfffffe00a78c5a70 [aiod1]
3449 1 810 0 S uwait 0xfffffe00a6e26080 syz-executor.3
3448 1 810 0 S uwait 0xfffffe00a6e43a00 syz-executor.3
3212 1 790 0 S uwait 0xfffffe00a6fcab80 syz-executor.1
3211 1 790 0 S uwait 0xfffffe0056fde200 syz-executor.1
3203 1 790 0 S uwait 0xfffffe00a6e43c00 syz-executor.1
3201 1 790 0 S uwait 0xfffffe00a6fca700 syz-executor.1
3197 1 790 0 S uwait 0xfffffe00a6fca400 syz-executor.1
3195 1 790 0 S uwait 0xfffffe009e9fea00 syz-executor.1
3192 1 790 0 S uwait 0xfffffe00a6fca980 syz-executor.1
3191 1 790 0 S uwait 0xfffffe009e2b5000 syz-executor.1
3188 1 790 0 S uwait 0xfffffe00a6e43b00 syz-executor.1
3187 1 790 0 S uwait 0xfffffe00a6e26600 syz-executor.1
2131 1 2131 65 Ss select 0xfffffe00a7471ec0 dhclient
1928 1 1928 0 Ss select 0xfffffe009e4c7b40 dhclient
1925 1 1925 0 Ss select 0xfffffe009e4c7240 dhclient
1906 1 1906 65 Ss select 0xfffffe009e4c7940 dhclient
1617 1 1617 0 Ss select 0xfffffe00a3d0dc40 dhclient
1611 1 1611 0 Ss select 0xfffffe00a3d0dcc0 dhclient
1587 1 1587 65 Rs dhclient
1392 1 1392 0 Ss select 0xfffffe00a6e26bc0 dhclient
1387 1 1387 0 Ss select 0xfffffe00a3d0ddc0 dhclient
1364 1 1364 65 Ss select 0xfffffe009e3647c0 dhclient
1011 1 1011 0 Ss select 0xfffffe009e9fe340 dhclient
1008 1 1008 0 Ss select 0xfffffe009e9fe2c0 dhclient
810 780 810 0 Ss nanslp 0xffffffff84055900 syz-executor.3
804 780 804 0 Rs syz-executor.2
790 780 790 0 Ss wait 0xfffffe009bf2e538 syz-executor.1
789 780 789 0 Rs syz-executor.0
780 778 778 0 S (threaded) syz-fuzzer
100111 S uwait 0xfffffe0097129600 syz-fuzzer
100122 S uwait 0xfffffe005874ef00 syz-fuzzer
100123 S uwait 0xfffffe005834c080 syz-fuzzer
100124 S uwait 0xfffffe005834c180 syz-fuzzer
100125 S uwait 0xfffffe005834c280 syz-fuzzer
100126 S kqread 0xfffffe009e4ccd00 syz-fuzzer
100127 S uwait 0xfffffe009e364380 syz-fuzzer
100128 S uwait 0xfffffe009e364480 syz-fuzzer
100129 S uwait 0xfffffe009e4c7d00 syz-fuzzer
778 776 778 0 Ss pause 0xfffffe009bf1e5e8 csh
776 694 776 0 Ss select 0xfffffe009e4c7ac0 sshd
760 1 760 0 Ss+ ttyin 0xfffffe0056fe0cb0 getty
759 1 759 0 Ss+ ttyin 0xfffffe00583ed0b0 getty
758 1 758 0 Ss+ ttyin 0xfffffe00583ed4b0 getty
757 1 757 0 Ss+ ttyin 0xfffffe00583ed8b0 getty
756 1 756 0 Ss+ ttyin 0xfffffe00583edcb0 getty
755 1 755 0 Ss+ ttyin 0xfffffe00583950b0 getty
754 1 754 0 Ss+ ttyin 0xfffffe00583954b0 getty
753 1 753 0 Ss+ ttyin 0xfffffe00583958b0 getty
752 1 752 0 Ss+ ttyin 0xfffffe0058395cb0 getty
698 1 698 0 Ss nanslp 0xffffffff84055900 cron
694 1 694 0 Ss select 0xfffffe009e364cc0 sshd
507 1 507 0 Ss select 0xfffffe009e364bc0 syslogd
436 1 436 0 Ss select 0xfffffe009e364dc0 devd
435 1 435 65 Ss select 0xfffffe009e2b5ac0 dhclient
350 1 350 0 Ss select 0xfffffe009e364b40 dhclient
347 1 347 0 Ss select 0xfffffe009e2b5a40 dhclient
23 0 0 0 RL [syncer]
22 0 0 0 DL vlruwt 0xfffffe0058747a70 [vnlru]
21 0 0 0 RL (threaded) [bufdaemon]
100083 D qsleep 0xffffffff84179940 [bufdaemon]
100086 RunQ [bufspacedaemon-0]
100097 RunQ [/ worker]
20 0 0 0 DL psleep 0xffffffff841b1c80 [vmdaemon]
19 0 0 0 DL (threaded) [pagedaemon]
100081 D psleep 0xffffffff841a57b8 [dom0]
100087 D launds 0xffffffff841a57c4 [laundry: dom0]
100088 D umarcl 0xffffffff81e7e640 [uma]
18 0 0 0 DL - 0xffffffff83e0caa0 [rand_harvestq]
17 0 0 0 DL waiting 0xffffffff84b7a460 [sctp_iterator]
16 0 0 0 RL [pf purge]
15 0 0 0 DL - 0xffffffff84174dc0 [soaiod4]
9 0 0 0 DL - 0xffffffff84174dc0 [soaiod3]
8 0 0 0 DL - 0xffffffff84174dc0 [soaiod2]
7 0 0 0 DL - 0xffffffff84174dc0 [soaiod1]
6 0 0 0 DL (threaded) [cam]
100046 D - 0xffffffff83c92240 [doneq0]
100047 D - 0xffffffff83c921c0 [async]
100080 D - 0xffffffff83c92040 [scanner]
14 0 0 0 DL seqstat 0xfffffe0056aadc88 [sequencer 00]
5 0 0 0 DL crypto_ 0xfffffe00541abd80 [crypto returns 1]
4 0 0 0 DL crypto_ 0xfffffe00541abd30 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff8419f860 [crypto]
13 0 0 0 DL (threaded) [geom]
100037 D - 0xffffffff84028ec0 [g_event]
100038 D - 0xffffffff84028f00 [g_up]
100039 D - 0xffffffff84028f40 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100028 D - 0xfffffe0053e16e00 [thr_0]
100029 D - 0xfffffe0053e16e80 [thr_1]
12 0 0 0 RL (threaded) [intr]
100010 I [swi6: task queue]
100011 I [swi6: Giant taskq]
100014 I [swi5: fast taskq]
100030 I [swi1: netisr 0]
100031 I [swi3: vm]
100032 I [swi4: clock (0)]
100033 I [swi4: clock (1)]
100034 I [swi1: hpts]
100035 RunQ [swi1: hpts]
100048 I [irq24: virtio_pci0]
100049 I [irq25: virtio_pci0]
100050 I [irq26: virtio_pci0]
100051 I [irq27: virtio_pci0]
100052 I [irq28: virtio_pci1]
100053 I [irq29: virtio_pci1]
100054 I [irq30: virtio_pci1]
100055 I [irq31: virtio_pci1]
100056 I [irq32: virtio_pci1]
100061 I [irq10: virtio_pci2]
100063 I [irq1: atkbd0]
100064 I [irq12: psm0]
100065 RunQ [swi0: uart uart++]
100073 I [swi1: pf send]
11 0 0 0 RL (threaded) [idle]
100003 CanRun [idle: cpu0]
100004 CanRun [idle: cpu1]
1 0 1 0 SLs wait 0xfffffe0053d51538 [init]
10 0 0 0 DL audit_w 0xffffffff841a0800 [audit]
0 0 0 0 RLs (threaded) [kernel]
100000 RunQ [swapper]
100005 D - 0xfffffe0053c0d800 [softirq_0]
100006 D - 0xfffffe0053c0d600 [softirq_1]
100007 D - 0xfffffe0053c0d400 [if_io_tqg_0]
100008 D - 0xfffffe0053c0d200 [if_io_tqg_1]
100009 D - 0xfffffe0053c0d000 [if_config_tqg_0]
100012 Run CPU 1 [thread taskq]
100013 D - 0xfffffe000791b400 [inm_free taskq]
100015 D - 0xfffffe000791b200 [kqueue_ctx taskq]
100016 D - 0xfffffe000791b100 [linuxkpi_irq_wq]
100017 D - 0xfffffe000791b000 [aiod_kick taskq]
100018 D - 0xfffffe0053df6e00 [in6m_free taskq]
100019 D - 0xfffffe0053df6d00 [pci_hp taskq]
100020 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_0]
100021 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_1]
100022 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_2]
100023 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_3]
100024 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_0]
100025 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_1]
100026 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_2]
100027 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_3]
100036 D - 0xfffffe0053df6a00 [firmware taskq]
100040 D - 0xfffffe0053df6900 [crypto_0]
100041 D - 0xfffffe0053df6900 [crypto_1]
100057 D - 0xfffffe0053df6700 [vtnet0 rxq 0]
100058 D - 0xfffffe0053df6600 [vtnet0 txq 0]
100059 D - 0xfffffe0053df6500 [vtnet0 rxq 1]
100060 D - 0xfffffe0053df6400 [vtnet0 txq 1]
100062 D vtbslp 0xfffffe0056fc0380 [virtio_balloon]
100066 D - 0xfffffe0053df6300 [mca taskq]
100071 D - 0xffffffff82c49760 [deadlkres]
100076 D - 0xfffffe0058394e00 [acpi_task_0]
100077 D - 0xfffffe0058394e00 [acpi_task_1]
100078 D - 0xfffffe0058394e00 [acpi_task_2]
100079 D - 0xfffffe0053df6800 [CAM taskq]
6081 804 804 0 Z syz-executor.2
db> show all locks
Process 6083 (syz-executor.1) thread 0xfffffe00a792a000 (104217)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a3d648b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:692
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe00a3dfb468) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:674
Process 0 (kernel) thread 0xfffffe0053df21e0 (100012)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840aa580) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:784
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5
devbuf 4216 4338K 4244
tcp_hpts 6 3201K 6
sysctloid 34320 2027K 34387
vtbuf 24 1968K 46
kobj 326 1304K 486
newblk 8 1026K 10297
vfscache 3 1025K 3
pcb 78 593K 13679
inodedep 47 530K 5557
ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 472K 4
filedesc 56 441K 10135
subproc 190 387K 6188
vmem 3 274K 5
acpica 1674 184K 54806
vnet_data 1 168K 1
tidhash 3 141K 3
linker 357 140K 397
pagedep 9 130K 5146
tfo_ccache 1 128K 1
DEVFS1 107 107K 124
sem 4 106K 4
BPF 46 88K 74
bus 986 80K 3469
mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 510 64K 510
umtx 418 53K 418
kdtrace 270 52K 14183
temp 36 35K 3045
hostcache 1 32K 1
shm 1 32K 10
DEVFS3 126 32K 136
msg 4 30K 4
gtaskqueue 18 26K 18
sctp_stro 25 25K 3009
kbdmux 6 22K 6
routetbl 148 22K 1009
ifaddr 70 20K 72
DEVFS_RULE 56 20K 56
sctp_atcl 51 20K 9646
ufs_mount 5 17K 6
proc 3 17K 3
tty 16 16K 16
ithread 99 16K 99
bus-sc 33 14K 1684
KTRACE 100 13K 100
ifnet 7 13K 7
ether_multi 152 13K 162
lltable 39 12K 207
kenv 95 12K 95
eventhandler 133 12K 133
CAM queue 5 11K 1528
rman 84 10K 425
GEOM 60 10K 489
dirrem 38 10K 5258
sctp_timw 35 9K 35
in6_multi 65 9K 65
bmsafemap 2 9K 5472
UART 12 9K 12
devstat 4 9K 4
pf_table 4 8K 147
pf_ifnet 26 8K 200
ksem 1 8K 60
rpc 2 8K 2
shmfd 1 8K 18
pfs_vncache 1 8K 1
kqueue 89 8K 6113
pfs_nodes 20 8K 20
audit_evclass 236 8K 294
cred 26 7K 396
taskqueue 60 7K 60
sglist 5 7K 5
CAM DEV 3 6K 510
plimit 24 6K 587
pwddesc 85 6K 6100
DEVFSP 80 5K 797
ufs_dirhash 24 5K 24
freefile 36 5K 5236
UMA 270 5K 270
session 35 5K 55
vt 11 5K 11
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4
kcovinfo 64 4K 68
acpisem 28 4K 28
sctp_atky 78 4K 12926
selfd 55 4K 91051
lockf 32 4K 82
hhook 15 4K 17
fpukern_ctx 3 3K 3
proc-args 52 3K 723
terminal 11 3K 11
select 20 3K 239
uidinfo 3 3K 49
local_apic 1 2K 1
io_apic 1 2K 1
ipsec-saq 2 2K 2
ip6ndp 12 2K 14
pf_osfp 15 2K 15
sctp_ifa 13 2K 14
Unitno 27 2K 47
CAM XPT 22 2K 543
in_multi 6 2K 8
ipsecpolicy 2 2K 2
acpidev 20 2K 20
msi 9 2K 9
clone 9 2K 9
tun 7 2K 7
freework 5 2K 6385
softdep 1 1K 1
mkdir 8 1K 10140
freeblks 4 1K 5262
sahead 1 1K 1
secasvar 1 1K 1
nhops 6 1K 8
vnodemarker 2 1K 376
NFSD session 1 1K 1
CAM periph 4 1K 271
sctp_athm 51 1K 9796
sctp_map 50 1K 6018
sctp_ifn 6 1K 14
ipsec 3 1K 3
mld 6 1K 6
igmp 6 1K 6
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 89
pci_link 10 1K 10
crypto 4 1K 288
encap_export_host 12 1K 12
procdesc 5 1K 18
sctp_stri 1 1K 414
newdirblk 4 1K 5070
diradd 4 1K 5300
pfil 4 1K 4
cdev 2 1K 2
inpcbpolicy 15 1K 3274
osd 8 1K 1369
chacha20random 1 1K 1
pf_rule 2 1K 145
NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1
DEVFS 9 1K 10
vnodes 1 1K 1
CAM SIM 2 1K 2
ktls 1 1K 1
sigio 4 1K 11
feeder 7 1K 7
tcpfunc 3 1K 3
loginclass 3 1K 6
prison 6 1K 6
lkpikmalloc 5 1K 6
aesni_data 2 1K 2
apmdev 1 1K 1
atkbddev 2 1K 2
CAM dev queue 2 1K 2
xform 2 1K 1197
CAM I/O Scheduler 1 1K 1
ip6_msource 2 1K 3
CAM path 4 1K 1034
pmchooks 1 1K 1
nexusdev 7 1K 7
soname 4 1K 9972
filecaps 5 1K 120
sctp_vrf 1 1K 1
vnet 1 1K 1
entropy 2 1K 48
acpiintr 1 1K 1
pmc 1 1K 1
cpus 2 1K 2
vnet_data_free 1 1K 1
Per-cpu 1 1K 1
p1003.1b 1 1K 1
pf_altq 0 0K 0
pf_temp 0 0K 0
mqdata 0 0K 0
cdg data 0 0K 16
sctp_mcore 0 0K 0
sctp_socko 0 0K 4813
sctp_iter 0 0K 27
sctp_mvrf 0 0K 0
sctp_cpal 0 0K 15
sctp_cmsg 0 0K 0
sctp_stre 0 0K 0
sctp_athi 0 0K 0
sctp_a_it 0 0K 12
sctp_aadr 0 0K 2
chd data 0 0K 7
dctcp data 0 0K 14
vegas data 0 0K 5
tcp_do 0 0K 0
tcp_fsb 0 0K 359
cubic data 0 0K 20
htcp data 0 0K 8
NEWdirectio 0 0K 0
NEWNFSnode 0 0K 0
madt_table 0 0K 2
smartpqi 0 0K 0
NFSCL lck 0 0K 0
NFSCL lckown 0 0K 0
NFSCL client 0 0K 0
NFSCL deleg 0 0K 0
NFSCL open 0 0K 0
NFSCL owner 0 0K 0
NFS fh 0 0K 0
NFS req 0 0K 0
iavf 0 0K 0
ixl 0 0K 0
NFSD usrgroup 0 0K 0
NFSD string 0 0K 0
NFSD V4lock 0 0K 0
NFSD V4state 0 0K 0
NFSD srvcache 0 0K 0
ice-resmgr 0 0K 0
ice-osdep 0 0K 0
ice 0 0K 0
axgbe 0 0K 0
msdosfs_fat 0 0K 0
msdosfs_mount 0 0K 0
msdosfs_node 0 0K 0
DEVFS4 0 0K 0
DEVFS2 0 0K 0
xen_intr 0 0K 0
gntdev 0 0K 0
privcmd_dev 0 0K 0
xen_hvm 0 0K 0
legacydrv 0 0K 0
qpidrv 0 0K 0
evtchn_dev 0 0K 0
xenstore 0 0K 0
dmar_idpgtbl 0 0K 0
dmar_dom 0 0K 0
dmar_ctx 0 0K 0
ciss_data 0 0K 0
BACKLIGHT 0 0K 0
xnb 0 0K 0
isci 0 0K 0
iommu_dmamap 0 0K 0
xbbd 0 0K 0
hyperv_socket 0 0K 0
bxe_ilt 0 0K 0
xenbus 0 0K 0
xbd 0 0K 0
Balloon 0 0K 0
sysmouse 0 0K 0
vm_fictitious 0 0K 0
vtfont 0 0K 0
ath_hal 0 0K 0
athdev 0 0K 0
ata_pci 0 0K 0
ata_dma 0 0K 0
ata_generic 0 0K 0
amr 0 0K 0
pvscsi 0 0K 0
scsi_da 0 0K 69
UMAHash 0 0K 0
ata_da 0 0K 0
vm_pgdata 0 0K 0
jblocks 0 0K 0
savedino 0 0K 5184
sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0
sbdep 0 0K 184
jsegdep 0 0K 0
jseg 0 0K 0
jfreefrag 0 0K 0
jfreeblk 0 0K 0
jnewblk 0 0K 0
jmvref 0 0K 0
jremref 0 0K 0
jaddref 0 0K 0
freedep 0 0K 0
freefrag 0 0K 6
allocindir 0 0K 0
indirdep 0 0K 1341
allocdirect 0 0K 0
ufs_trim 0 0K 0
mactemp 0 0K 0
audit_trigger 0 0K 0
audit_pipe_presel 0 0K 0
audit_pipeent 0 0K 0
audit_pipe 0 0K 0
audit_evname 0 0K 0
audit_bsm 0 0K 0
audit_gidset 0 0K 0
audit_text 0 0K 0
audit_path 0 0K 0
audit_data 0 0K 0
audit_cred 0 0K 0
scsi_ch 0 0K 0
scsi_cd 0 0K 0
AHCI driver 0 0K 0
USBdev 0 0K 0
USB 0 0K 0
agp 0 0K 0
nvme_da 0 0K 0
ktls_ocf 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5E_TLS 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EN 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
MLX5DUMP 0 0K 0
MLX5EEPROM 0 0K 0
MLX5EEPROM 0 0K 0
seq_file 0 0K 0
radix 0 0K 0
idr 0 0K 0
lkpifw 0 0K 0
NLM 0 0K 0
ipsec-spdcache 0 0K 0
ipsec-reg 0 0K 0
ipsec-misc 0 0K 0
ipsecrequest 0 0K 0
ip6opt 0 0K 76
ip6_moptions 0 0K 10
in6_mfilter 0 0K 25
frag6 0 0K 0
tcplog 0 0K 0
tcp_hwpace 0 0K 0
acpipwr 0 0K 0
acpi_perf 0 0K 0
LRO 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0
ip_moptions 0 0K 4
in_mfilter 0 0K 0
ipid 0 0K 0
80211scan 0 0K 0
80211ratectl 0 0K 0
80211power 0 0K 0
80211nodeie 0 0K 0
80211node 0 0K 0
80211mesh_gt 0 0K 0
80211mesh_rt 0 0K 0
80211perr 0 0K 0
80211prep 0 0K 0
80211preq 0 0K 0
80211dfs 0 0K 0
80211crypto 0 0K 0
80211vap 0 0K 0
iflib 0 0K 0
vlan 0 0K 0
gif 0 0K 0
ifdescr 0 0K 0
zlib 0 0K 0
fadvise 0 0K 0
VN POLL 0 0K 4
twsbuf 0 0K 0
statfs 0 0K 5286
namei_tracker 0 0K 18
export_host 0 0K 0
cl_savebuf 0 0K 67
twe_commands 0 0K 0
twa_commands 0 0K 0
tcp_log_dev 0 0K 130
midi buffers 0 0K 0
mixer 0 0K 0
ac97 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
hdaa 0 0K 0
acpicmbat 0 0K 0
SIIS driver 0 0K 0
CAM CCB 0 0K 14261
PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
osti_cacheable 0 0K 0
mbuf_tag 0 0K 149
tempbuff 0 0K 0
tempbuff 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
lDevFlags * malloc 0 0K 0
tiDeviceHandle_t * malloc 0 0K 0
ag_portal_data_t malloc 0 0K 0
ag_device_t malloc 0 0K 0
STLock malloc 0 0K 0
CCB List 0 0K 0
sr_iov 0 0K 0
OCS 0 0K 0
OCS 0 0K 0
nvme 0 0K 0
nvd 0 0K 0
netmap 0 0K 0
mwldev 0 0K 0
MVS driver 0 0K 0
CAM ccb queue 0 0K 0
mrsasbuf 0 0K 0
mpt_user 0 0K 0
mps_user 0 0K 0
accf 0 0K 0
pts 0 0K 0
iov 0 0K 19665
ioctlops 0 0K 799
eventfd 0 0K 5
Witness 0 0K 0
stack 0 0K 0
MPSSAS 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
sbuf 0 0K 288
md_sectors 0 0K 0
firmware 0 0K 0
compressor 0 0K 0
md_disk 0 0K 0
SWAP 0 0K 0
malodev 0 0K 0
LED 0 0K 0
sysctltmp 0 0K 963
sysctl 0 0K 3
ekcd 0 0K 0
dumper 0 0K 0
sendfile 0 0K 0
rctl 0 0K 0
ix_sriov 0 0K 0
aacraidcam 0 0K 0
aacraid_buf 0 0K 0
ix 0 0K 0
ipsbuf 0 0K 0
cache 0 0K 0
iirbuf 0 0K 0
prison_racct 0 0K 0
Fail Points 0 0K 0
filedesc_to_leader 0 0K 0
pwd 0 0K 0
tty console 0 0K 0
aaccam 0 0K 0
aacbuf 0 0K 0
zstd 0 0K 0
XZ_DEC 0 0K 0
nvlist 0 0K 0
SCSI ENC 0 0K 0
SCSI sa 0 0K 0
scsi_pass 0 0K 0
isofs_node 0 0K 0
isofs_mount 0 0K 0
tr_raid5_data 0 0K 0
tr_raid1e_data 0 0K 0
tr_raid1_data 0 0K 0
tr_raid0_data 0 0K 0
tr_concat_data 0 0K 0
md_sii_data 0 0K 0
md_promise_data 0 0K 0
md_nvidia_data 0 0K 0
md_jmicron_data 0 0K 0
md_intel_data 0 0K 0
md_ddf_data 0 0K 0
raid_data 0 0K 72
geom_flashmap 0 0K 0
tmpfs dir 0 0K 0
tmpfs name 0 0K 0
tmpfs mount 0 0K 0
NFS FHA 0 0K 0
newnfsmnt 0 0K 0
newnfsclient_req 0 0K 0
NFSCL layrecall 0 0K 0
NFSCL session 0 0K 0
NFSCL sockreq 0 0K 0
NFSCL devinfo 0 0K 0
NFSCL flayout 0 0K 0
NFSCL layout 0 0K 0
NFSD rollback 0 0K 0
NFSCL diroff 0 0K 0
db> show uma
Zone Size Used Free Requests Sleeps Bucket Total Mem XFree
mbuf_jumbo_page 4096 8320 990 872345 0 254 38133760 0
tcp_log 416 0 12960 198383 0 254 5391360 0
mbuf 256 8820 3315 2356412 0 254 3106560 0
pbuf 2624 0 957 0 0 2 2511168 0
RADIX NODE 144 13303 1616 220123 0 62 2148336 0
BUF TRIE 144 353 11407 10922 0 62 1693440 0
mbuf_cluster 2048 690 132 1020 0 254 1683456 0
malloc-384 384 4235 15 4414 0 30 1632000 0
malloc-128 128 11323 54 11677 0 126 1456256 0
malloc-4096 4096 327 4 649 0 2 1355776 0
UMA Slabs 0 112 10892 13 10892 0 126 1221360 0
vmem btag 56 19087 40 19087 0 254 1071112 0
tcp_bbr_map 128 0 7440 248292 0 126 952320 0
ertt_txseginfo 40 0 18887 686669 0 254 755480 0
FFS inode 1160 534 26 5781 0 8 649600 0
256 Bucket 2048 285 13 18827 0 8 610304 0
malloc-16384 16384 28 5 5066 0 1 540672 0
malloc-4096 4096 110 4 6629 0 2 466944 0
VM OBJECT 264 1539 81 90494 0 30 427680 0
THREAD 1808 182 27 8097 0 8 377872 0
lkpimm 160 1 2324 1 0 62 372000 0
lkpicurr 160 2 2323 2 0 62 372000 0
sctp_asoc 2288 25 125 3009 0 254 343200 0
malloc-2048 2048 27 121 6324 0 8 303104 0
MAP ENTRY 96 2700 408 352148 0 126 298368 0
VNODE 448 572 85 5821 0 30 294336 0
malloc-64 64 4200 336 95594 0 254 290304 0
malloc-65536 65536 4 0 4 0 1 262144 0
malloc-16 16 14081 419 23739 0 254 232000 0
sctp_chunk 152 5 1503 3149 0 254 229216 0
DEVCTL 1024 0 220 153 0 0 225280 0
malloc-2048 2048 7 99 14277 0 8 217088 0
sctp_ep 1280 25 131 6320 0 254 199680 0
malloc-65536 65536 0 3 530 0 1 196608 0
malloc-65536 65536 1 2 70 0 1 196608 0
malloc-32768 32768 0 6 1197 0 1 196608 0
UMA Zones 768 242 2 242 0 16 187392 0
malloc-256 256 163 557 27687 0 62 184320 0
malloc-32 32 5364 180 5789 0 254 177408 0
mbuf_packet 256 83 607 24216 0 254 176640 0
VMSPACE 2544 59 10 6059 0 4 175536 0
malloc-128 128 1264 69 34646 0 126 170624 0
malloc-128 128 1200 40 12813 0 126 158720 0
malloc-1024 1024 33 119 3570 0 16 155648 0
FFS2 dinode 256 534 51 5781 0 62 149760 0
128 Bucket 1024 113 30 3109 0 16 146432 0
socket 944 41 111 11152 0 254 143488 0
S VFS Cache 104 1029 336 6404 0 126 141960 0
PROC 1336 86 16 6084 0 8 136272 0
malloc-65536 65536 2 0 2 0 1 131072 0
malloc-65536 65536 2 0 2 0 1 131072 0
malloc-65536 65536 0 2 21 0 1 131072 0
filedesc0 1072 86 33 6100 0 8 127568 0
clpbuf 2624 0 48 1241 0 16 125952 0
malloc-1024 1024 110 6 127 0 16 118784 0
ksiginfo 112 86 958 3578 0 126 116928 0
malloc-384 384 51 249 9674 0 30 115200 0
malloc-256 256 195 255 19430 0 62 115200 0
sctp_raddr 736 24 130 3414 0 254 113344 0
malloc-128 128 339 374 5698 0 126 91264 0
UMA Kegs 384 227 6 227 0 30 89472 0
malloc-384 384 46 184 5619 0 30 88320 0
malloc-16384 16384 4 1 179 0 1 81920 0
malloc-8192 8192 5 5 134 0 1 81920 0
g_bio 408 0 190 42227 0 30 77520 0
malloc-2048 2048 4 32 511 0 8 73728 0
64 Bucket 512 97 47 8200 0 30 73728 0
malloc-32768 32768 0 2 130 0 1 65536 0
malloc-32768 32768 2 0 2 0 1 65536 0
malloc-256 256 164 46 450 0 62 53760 0
malloc-256 256 77 133 6833 0 62 53760 0
32 Bucket 256 76 134 8404 0 62 53760 0
malloc-4096 4096 12 1 23 0 2 53248 0
tcpcb 1080 4 45 1358 0 254 52920 0
tcp_inpcb 496 4 100 1358 0 254 51584 0
malloc-16384 16384 3 0 3 0 1 49152 0
malloc-8192 8192 6 0 6 0 1 49152 0
malloc-8192 8192 4 2 12 0 1 49152 0
malloc-384 384 83 37 439 0 30 46080 0
malloc-2048 2048 6 16 149 0 8 45056 0
pcpu-8 8 4989 643 9887 0 254 45056 0
malloc-64 64 601 92 24412 0 254 44352 0
NAMEI 1024 0 40 38108 0 16 40960 0
malloc-8192 8192 5 0 5 0 1 40960 0
malloc-256 256 114 36 1244 0 62 38400 0
tcp_rack_pcb 832 0 45 359 0 16 37440 0
DIRHASH 1024 34 2 34 0 16 36864 0
malloc-4096 4096 9 0 9 0 2 36864 0
malloc-64 64 478 89 690 0 254 36288 0
malloc-64 64 46 521 5744 0 254 36288 0
udplite_inpcb 496 0 72 1405 0 254 35712 0
pipe 744 27 18 549 0 16 33480 0
malloc-32768 32768 1 0 1 0 1 32768 0
pcpu-64 64 487 25 487 0 254 32768 0
Files 80 241 159 25401 0 126 32000 0
TURNSTILE 136 210 21 210 0 62 31416 0
tcp_bbr_pcb 832 0 36 633 0 16 29952 0
malloc-2048 2048 6 8 374 0 8 28672 0
malloc-1024 1024 13 15 1556 0 16 28672 0
KNOTE 160 28 147 84603 0 62 28000 0
8 Bucket 80 72 278 2604 0 126 28000 0
malloc-8192 8192 2 1 4 0 1 24576 0
malloc-4096 4096 3 3 5290 0 2 24576 0
malloc-2048 2048 12 0 203 0 8 24576 0
PWD 32 30 726 5120 0 254 24192 0
malloc-64 64 258 120 12334 0 254 24192 0
16 Bucket 144 56 112 626 0 62 24192 0
ttyinq 160 135 15 300 0 62 24000 0
malloc-128 128 9 177 450 0 126 23808 0
ttyoutq 256 72 18 160 0 62 23040 0
malloc-256 256 47 43 666 0 62 23040 0
SLEEPQUEUE 88 210 46 210 0 126 22528 0
malloc-4096 4096 2 3 33 0 2 20480 0
malloc-1024 1024 17 3 17 0 16 20480 0
malloc-32 32 313 317 15690 0 254 20160 0
malloc-32 32 76 554 10067 0 254 20160 0
malloc-128 128 89 66 5223 0 126 19840 0
itimer 352 0 55 147 0 30 19360 0
Mountpoints 2752 2 5 2 0 4 19264 0
malloc-384 384 35 15 37 0 30 19200 0
malloc-384 384 36 14 36 0 30 19200 0
malloc-256 256 29 46 5344 0 62 19200 0
malloc-8192 8192 2 0 2 0 1 16384 0
malloc-4096 4096 2 2 85 0 2 16384 0
malloc-2048 2048 2 6 437 0 8 16384 0
malloc-1024 1024 11 5 11 0 16 16384 0
sctp_stream_msg_out 112 23 121 623 0 254 16128 0
2 Bucket 32 57 447 1273 0 254 16128 0
vtnet_tx_hdr 24 0 668 907689 0 254 16032 0
unpcb 256 20 40 1501 0 254 15360 0
malloc-1024 1024 8 4 9 0 16 12288 0
malloc-512 512 10 14 211 0 30 12288 0
malloc-512 512 12 12 40 0 30 12288 0
malloc-512 512 1 23 423 0 30 12288 0
sctp_laddr 48 32 220 2519 0 254 12096 0
tcp_rack_map 112 0 108 719 0 126 12096 0
malloc-64 64 87 102 804 0 254 12096 0
malloc-64 64 158 31 173 0 254 12096 0
malloc-32 32 160 218 325 0 254 12096 0
malloc-16 16 346 404 649 0 254 12000 0
ripcb 496 5 19 160 0 254 11904 0
udp_inpcb 496 6 18 351 0 254 11904 0
malloc-128 128 12 81 469 0 126 11904 0
kenv 258 15 30 1042 0 30 11610 0
routing nhops 256 27 18 34 0 62 11520 0
malloc-256 256 34 11 1843 0 62 11520 0
malloc-8192 8192 1 0 1 0 1 8192 0
malloc-4096 4096 0 2 19 0 2 8192 0
malloc-1024 1024 2 6 15 0 16 8192 0
malloc-1024 1024 1 7 96 0 16 8192 0
malloc-512 512 1 15 8 0 30 8192 0
malloc-512 512 3 13 377 0 30 8192 0
malloc-512 512 4 12 4 0 30 8192 0
malloc-512 512 0 16 5 0 30 8192 0
rtentry 176 30 16 34 0 62 8096 0
tcptw 88 0 92 6 0 254 8096 0
PGRP 88 35 57 55 0 126 8096 0
rl_entry 40 88 114 88 0 254 8080 0
syncache 168 0 48 6 0 254 8064 0
udpcb 32 6 246 1756 0 254 8064 0
AIOP 32 4 248 4 0 254 8064 0
ertt 72 4 108 1358 0 126 8064 0
malloc-64 64 12 114 103 0 254 8064 0
malloc-32 32 138 114 204 0 254 8064 0
malloc-32 32 21 231 53 0 254 8064 0
malloc-32 32 38 214 862 0 254 8064 0
4 Bucket 48 7 161 149 0 254 8064 0
malloc-16 16 6 494 1381 0 254 8000 0
malloc-16 16 16 484 19 0 254 8000 0
malloc-16 16 187 313 1417 0 254 8000 0
malloc-16 16 29 471 30170 0 254 8000 0
malloc-16 16 59 441 10067 0 254 8000 0
malloc-128 128 25 37 128 0 126 7936 0
sctp_readq 152 0 52 204 0 254 7904 0
cryptop 280 0 28 72 0 30 7840 0
malloc-384 384 1 19 349 0 30 7680 0
malloc-384 384 1 19 9 0 30 7680 0
FPU_save_area 832 1 8 1 0 16 7488 0
cpuset 104 7 55 7 0 126 6448 0
domainset 40 1 125 25 0 254 5040 0
epoch_record pcpu 256 4 12 4 0 62 4096 0
malloc-2048 2048 1 1 1 0 8 4096 0
pcpu-16 16 7 249 7 0 254 4096 0
sctp_asconf_ack 48 1 83 2 0 254 4032 0
sackhole 32 0 126 2 0 254 4032 0
hostcache 64 1 62 1 0 254 4032 0
AIO 208 0 19 1 0 62 3952 0
UMA Slabs 1 176 10 12 10 0 62 3872 0
mqnode 416 3 6 3 0 30 3744 0
KMAP ENTRY 96 12 27 14 0 0 3744 0
vmem 1856 1 1 1 0 8 3712 0
SMR CPU 32 3 60 3 0 254 2016 0
SMR SHARED 24 3 60 3 0 254 1512 0
FFS1 dinode 128 0 0 0 0 126 0 0
da_ccb 544 0 0 0 0 16 0 0
ada_ccb 272 0 0 0 0 30 0 0
swblk 136 0 0 0 0 62 0 0
swpctrie 144 0 0 0 0 62 0 0
cdg_qdiffsample 16 0 0 0 0 254 0 0
sctp_asconf 40 0 0 0 0 254 0 0
pf state scrubs 40 0 0 0 0 254 0 0
pf frag entries 40 0 0 0 0 254 0 0
pf frags 248 0 0 0 0 62 0 0
pf table entries 160 0 0 0 0 62 0 0
pf table entry counters 64 0 0 0 0 254 0 0
pf source nodes 136 0 0 0 0 254 0 0
pf state keys 88 0 0 0 0 126 0 0
pf states 304 0 0 0 0 0 0 0
pf tags 104 0 0 0 0 126 0 0
pf mtags 48 0 0 0 0 254 0 0
tcp_log_node 120 0 0 0 0 126 0 0
tcp_log_bucket 176 0 0 0 0 62 0 0
tcpreass 48 0 0 0 0 254 0 0
tfo_ccache_entries 80 0 0 0 0 126 0 0
tfo 4 0 0 0 0 254 0 0
ipq 56 0 0 0 0 254 0 0
IPsec SA lft_c 16 0 0 0 0 254 0 0
AIOLIO 272 0 0 0 0 30 0 0
AIOCB 552 0 0 0 0 16 0 0
TMPFS node 224 0 0 0 0 62 0 0
NCLNODE 584 0 0 0 0 16 0 0
mqnotifier 216 0 0 0 0 62 0 0
mvdata 64 0 0 0 0 254 0 0
mqueue 248 0 0 0 0 62 0 0
LTS VFS Cache 360 0 0 0 0 30 0 0
L VFS Cache 320 0 0 0 0 30 0 0
STS VFS Cache 144 0 0 0 0 62 0 0
linux_dma_object 24 0 0 0 0 254 0 0
linux_dm

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

syzbot

unread,

Jul 12, 2021, 12:56:19 AM7/12/21

to syzkaller-f...@googlegroups.com

syzbot has found a reproducer for the following issue on:

HEAD commit: 9c1c0209 loader: support.4th resets the read buffer incorr..

git tree: https://github.com/freebsd/freebsd-src.git main

console output: https://syzkaller.appspot.com/x/log.txt?x=130945d8300000
dashboard link: https://syzkaller.appspot.com/bug?extid=9e998ed20958f50b993e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=133e96d2300000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9e998e...@syzkaller.appspotmail.com

panic: ASan: Invalid access, 8-byte write at 0xfffffe009ea75a48, UMAUseAfterFree(fd)
cpuid = 1
time = 1626062132
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009ba64e50
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009ba64fb0
vpanic() at vpanic+0x2c5/frame 0xfffffe009ba65090
panic() at panic+0xb5/frame 0xfffffe009ba65150
__asan_store8_noabort() at __asan_store8_noabort+0x36f/frame 0xfffffe009ba65210
sctp_timer_stop() at sctp_timer_stop+0x82b/frame 0xfffffe009ba65280
sctp_stop_timers_for_shutdown() at sctp_stop_timers_for_shutdown+0xb9/frame 0xfffffe009ba652b0
sctp_disconnect() at sctp_disconnect+0x884/frame 0xfffffe009ba653b0
soclose() at soclose+0x3b3/frame 0xfffffe009ba654c0
_fdrop() at _fdrop+0x58/frame 0xfffffe009ba654f0
closef() at closef+0x686/frame 0xfffffe009ba656e0
fdescfree_fds() at fdescfree_fds+0x1fa/frame 0xfffffe009ba65750
fdescfree() at fdescfree+0x903/frame 0xfffffe009ba65940
exit1() at exit1+0x8b7/frame 0xfffffe009ba659d0
sys_sys_exit() at sys_sys_exit+0x28/frame 0xfffffe009ba659f0
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe009ba65bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009ba65bf0
--- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x2e985a, rsp = 0x7fffffffe478, rbp = 0x7fffffffe480 ---
KDB: enter: panic
[ thread pid 1811 tid 100164 ]
Stopped at kdb_enter+0x6b: movq $0,0x28fa0fa(%rip)

db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b
es 0x3b
fs 0x13
gs 0x1b
ss 0x28
rax 0x12

rcx 0xbe8bf18054bb2b
rdx 0xdffff7c000000000
rbx 0
rsp 0xfffffe009ba64f90
rbp 0xfffffe009ba64fb0
rsi 0x1
rdi 0xffffffff840860c0 cov_trace_pc
r8 0x3
r9 0xfffffe009ba64ae8
r10 0
r11 0x5b4506a5
r12 0xfffffe009e9f1ac0
r13 0xfffffe009ba65001
r14 0xffffffff82c418c0 .str.18
r15 0xffffffff82c418c0 .str.18
rip 0xffffffff8178e93b kdb_enter+0x6b
rflags 0x46
kdb_enter+0x6b: movq $0,0x28fa0fa(%rip)
db> show proc
Process 1811 (syz-executor.3) at 0xfffffe009ea38a70:

state: NORMAL
uid: 0 gids: 0, 0, 5

parent: pid 804 at 0xfffffe009bd03538

ABI: FreeBSD ELF64
flag: 0x10002000 flag2: 0

arguments: /root/syz-executor.3

reaper: 0xfffffe0053d51538 reapsubtree: 1
sigparent: 20

vmspace: 0xfffffe009ea129f0
(map 0xfffffe009ea129f0)
(map.pmap 0xfffffe009ea12ab0)
(pmap 0xfffffe009ea12b10)
threads: 1
100164 Run CPU 1 syz-executor.3

db> ps
pid ppid pgrp uid state wmesg wchan cmd

1855 1849 1855 0 Ss select 0xfffffe009e9e78c0 dhclient
1852 1 1852 0 Ss select 0xfffffe009e9e75c0 dhclient
1849 1842 436 65 R dhclient
1842 436 436 0 S wait 0xfffffe009e98da70 sh
1814 803 803 0 T (threaded) syz-executor.0
100460 s syz-executor.0
101182 RunQ syz-executor.0
1813 805 805 0 T (threaded) syz-executor.1
100094 s syz-executor.1
101184 RunQ syz-executor.1
1812 808 808 0 T (threaded) syz-executor.2
100459 s syz-executor.2
101177 RunQ syz-executor.2
101178 RunQ syz-executor.2
101179 RunQ syz-executor.2
101186 RunQ syz-executor.2
1811 804 804 0 RE CPU 1 syz-executor.3
808 794 808 0 Ss wait 0xfffffe009e493000 syz-executor.2
805 794 805 0 Ss wait 0xfffffe009befea70 syz-executor.1
804 794 804 0 Ss wait 0xfffffe009bd03538 syz-executor.3
803 794 803 0 Ss wait 0xfffffe009bf15a70 syz-executor.0
794 792 792 0 S (threaded) syz-execprog
100105 S uwait 0xfffffe009bd1e980 syz-execprog
100115 S uwait 0xfffffe0058748f00 syz-execprog
100116 S kqread 0xfffffe0053e1ca00 syz-execprog
100117 S uwait 0xfffffe005834a180 syz-execprog
100118 S uwait 0xfffffe005834a280 syz-execprog
100121 S uwait 0xfffffe009e367e80 syz-execprog
100122 S uwait 0xfffffe009e367000 syz-execprog
100123 S uwait 0xfffffe009e367100 syz-execprog
100124 S uwait 0xfffffe009e367200 syz-execprog
100125 S uwait 0xfffffe009e367300 syz-execprog
792 790 792 0 Ss pause 0xfffffe009e3685e8 csh
790 694 790 0 Ss select 0xfffffe009e3677c0 sshd

760 1 760 0 Ss+ ttyin 0xfffffe0056fe0cb0 getty

759 1 759 0 Ss+ ttyin 0xfffffe00583e90b0 getty
758 1 758 0 Ss+ ttyin 0xfffffe00583e94b0 getty
757 1 757 0 Ss+ ttyin 0xfffffe00583e98b0 getty
756 1 756 0 Ss+ ttyin 0xfffffe00583e9cb0 getty
755 1 755 0 Ss+ ttyin 0xfffffe00583910b0 getty
754 1 754 0 Ss+ ttyin 0xfffffe00583914b0 getty
753 1 753 0 Ss+ ttyin 0xfffffe00583918b0 getty
752 1 752 0 Ss+ ttyin 0xfffffe0058391cb0 getty

698 1 698 0 Ss nanslp 0xffffffff84055900 cron

694 1 694 0 Ss select 0xfffffe009e2b6a40 sshd
507 1 507 0 Ss select 0xfffffe009e367ac0 syslogd
436 1 436 0 Ss wait 0xfffffe009e368a70 devd
435 1 435 65 Rs dhclient
350 1 350 0 Ss select 0xfffffe009e367740 dhclient
347 1 347 0 Ss select 0xfffffe009e2b6d40 dhclient
23 0 0 0 DL syncer 0xffffffff8417ba40 [syncer]
22 0 0 0 DL vlruwt 0xfffffe0058741a70 [vnlru]
21 0 0 0 DL (threaded) [bufdaemon]

100083 D qsleep 0xffffffff84179940 [bufdaemon]

100086 D - 0xffffffff83411f80 [bufspacedaemon-0]
100097 D sdflush 0xfffffe009bd2dce8 [/ worker]

20 0 0 0 DL psleep 0xffffffff841b1c80 [vmdaemon]
19 0 0 0 DL (threaded) [pagedaemon]
100081 D psleep 0xffffffff841a57b8 [dom0]
100087 D launds 0xffffffff841a57c4 [laundry: dom0]

100088 D umarcl 0xffffffff81e7e190 [uma]
18 0 0 0 RL [rand_harvestq]
17 0 0 0 DL waiting 0xffffffff84ce8460 [sctp_iterator]
16 0 0 0 DL pftm 0xffffffff84a0cd30 [pf purge]

15 0 0 0 DL - 0xffffffff84174dc0 [soaiod4]
9 0 0 0 DL - 0xffffffff84174dc0 [soaiod3]
8 0 0 0 DL - 0xffffffff84174dc0 [soaiod2]
7 0 0 0 DL - 0xffffffff84174dc0 [soaiod1]
6 0 0 0 DL (threaded) [cam]
100046 D - 0xffffffff83c92240 [doneq0]
100047 D - 0xffffffff83c921c0 [async]
100080 D - 0xffffffff83c92040 [scanner]
14 0 0 0 DL seqstat 0xfffffe0056aadc88 [sequencer 00]
5 0 0 0 DL crypto_ 0xfffffe00541abd80 [crypto returns 1]
4 0 0 0 DL crypto_ 0xfffffe00541abd30 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff8419f860 [crypto]
13 0 0 0 DL (threaded) [geom]
100037 D - 0xffffffff84028ec0 [g_event]
100038 D - 0xffffffff84028f00 [g_up]
100039 D - 0xffffffff84028f40 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100028 D - 0xfffffe0053e16e00 [thr_0]
100029 D - 0xfffffe0053e16e80 [thr_1]
12 0 0 0 RL (threaded) [intr]
100010 I [swi6: task queue]
100011 I [swi6: Giant taskq]
100014 I [swi5: fast taskq]

100030 Run CPU 0 [swi1: netisr 0]

100031 I [swi3: vm]
100032 I [swi4: clock (0)]
100033 I [swi4: clock (1)]
100034 I [swi1: hpts]

100035 I [swi1: hpts]

100048 I [irq24: virtio_pci0]
100049 I [irq25: virtio_pci0]
100050 I [irq26: virtio_pci0]
100051 I [irq27: virtio_pci0]
100052 I [irq28: virtio_pci1]
100053 I [irq29: virtio_pci1]
100054 I [irq30: virtio_pci1]
100055 I [irq31: virtio_pci1]
100056 I [irq32: virtio_pci1]
100061 I [irq10: virtio_pci2]
100063 I [irq1: atkbd0]
100064 I [irq12: psm0]

100065 I [swi0: uart uart++]

100073 I [swi1: pf send]
11 0 0 0 RL (threaded) [idle]
100003 CanRun [idle: cpu0]
100004 CanRun [idle: cpu1]
1 0 1 0 SLs wait 0xfffffe0053d51538 [init]
10 0 0 0 DL audit_w 0xffffffff841a0800 [audit]
0 0 0 0 RLs (threaded) [kernel]

100000 D swapin 0xffffffff84029dc0 [swapper]

100005 D - 0xfffffe0053c0d800 [softirq_0]
100006 D - 0xfffffe0053c0d600 [softirq_1]
100007 D - 0xfffffe0053c0d400 [if_io_tqg_0]
100008 D - 0xfffffe0053c0d200 [if_io_tqg_1]
100009 D - 0xfffffe0053c0d000 [if_config_tqg_0]

100012 RunQ [thread taskq]

100013 D - 0xfffffe000791b400 [inm_free taskq]
100015 D - 0xfffffe000791b200 [kqueue_ctx taskq]
100016 D - 0xfffffe000791b100 [linuxkpi_irq_wq]
100017 D - 0xfffffe000791b000 [aiod_kick taskq]
100018 D - 0xfffffe0053df6e00 [in6m_free taskq]
100019 D - 0xfffffe0053df6d00 [pci_hp taskq]
100020 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_0]
100021 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_1]
100022 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_2]
100023 D - 0xfffffe0053df6c00 [linuxkpi_short_wq_3]
100024 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_0]
100025 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_1]
100026 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_2]
100027 D - 0xfffffe0053df6b00 [linuxkpi_long_wq_3]
100036 D - 0xfffffe0053df6a00 [firmware taskq]
100040 D - 0xfffffe0053df6900 [crypto_0]
100041 D - 0xfffffe0053df6900 [crypto_1]
100057 D - 0xfffffe0053df6700 [vtnet0 rxq 0]
100058 D - 0xfffffe0053df6600 [vtnet0 txq 0]
100059 D - 0xfffffe0053df6500 [vtnet0 rxq 1]
100060 D - 0xfffffe0053df6400 [vtnet0 txq 1]
100062 D vtbslp 0xfffffe0056fc0380 [virtio_balloon]
100066 D - 0xfffffe0053df6300 [mca taskq]

100071 D - 0xffffffff82c48841 [deadlkres]
100076 D - 0xfffffe0058390e00 [acpi_task_0]
100077 D - 0xfffffe0058390e00 [acpi_task_1]
100078 D - 0xfffffe0058390e00 [acpi_task_2]

100079 D - 0xfffffe0053df6800 [CAM taskq]

db> show all locks
Process 1812 (syz-executor.2) thread 0xfffffe009ea4c740 (101178)
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe009ea7a488) locked @ /syzkaller/managers/main/kernel/sys/netinet6/sctp6_usrreq.c:870
Process 1811 (syz-executor.3) thread 0xfffffe009e9f1ac0 (100164)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009ea63a90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:692
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009e9f5968) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:674
Process 12 (intr) thread 0xfffffe0053df7000 (100030)
shared rw sctp-info (sctp-info) r = 0 (0xfffffe00081ae750) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2130

Process 0 (kernel) thread 0xfffffe0053df21e0 (100012)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840aa580) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:784
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5
devbuf 4216 4338K 4244
tcp_hpts 6 3201K 6
sysctloid 34320 2027K 34387
vtbuf 24 1968K 46
kobj 326 1304K 486

newblk 42 1035K 1545
vfscache 3 1025K 3
inodedep 387 657K 1018
pcb 30 544K 3760

ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 472K 4

subproc 122 246K 1923

acpica 1674 184K 54806
vnet_data 1 168K 1

vmem 3 146K 4

tidhash 3 141K 3
linker 357 140K 397

filedesc 18 137K 1902
pagedep 16 132K 951

tfo_ccache 1 128K 1
DEVFS1 107 107K 124
sem 4 106K 4

dirrem 362 91K 945

bus 986 80K 3469
mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 510 64K 510

freefile 361 46K 942
umtx 330 42K 330
kdtrace 202 41K 3048
BPF 22 36K 22
sctp_timw 137 35K 137
temp 35 33K 2052

hostcache 1 32K 1
shm 1 32K 1

DEVFS3 126 32K 136
msg 4 30K 4
gtaskqueue 18 26K 18

kbdmux 6 22K 6
DEVFS_RULE 56 20K 56
routetbl 136 20K 399
ifaddr 67 19K 69

ufs_mount 5 17K 6
proc 3 17K 3
tty 16 16K 16
ithread 99 16K 99
bus-sc 33 14K 1684

lltable 43 14K 43

KTRACE 100 13K 100
ifnet 7 13K 7
ether_multi 152 13K 162

kenv 95 12K 95
eventhandler 133 12K 133
CAM queue 5 11K 1528
rman 84 10K 425
GEOM 60 10K 489

in6_multi 65 9K 65
bmsafemap 2 9K 983

UART 12 9K 12
devstat 4 9K 4

ksem 1 8K 1

rpc 2 8K 2
shmfd 1 8K 1

pfs_vncache 1 8K 1

pfs_nodes 20 8K 20
audit_evclass 236 8K 294

taskqueue 60 7K 60
sglist 5 7K 5
CAM DEV 3 6K 510

cred 23 6K 291
kqueue 57 6K 1862
plimit 21 6K 441
ufs_dirhash 24 5K 24
UMA 270 5K 270
pf_ifnet 10 5K 19

vt 11 5K 11
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4

diradd 28 4K 981
acpisem 28 4K 28
pwddesc 54 4K 1856
hhook 15 4K 17
session 25 4K 45
fpukern_ctx 3 3K 3
terminal 11 3K 11
proc-args 44 3K 619
uidinfo 3 3K 13
lockf 20 3K 39

local_apic 1 2K 1
io_apic 1 2K 1

mkdir 16 2K 1872
indirdep 8 2K 10
ipsec-saq 2 2K 2
selfd 31 2K 9754
sctp_atcl 5 2K 4584
ip6ndp 12 2K 14
Unitno 31 2K 47
sctp_ifa 13 2K 14

CAM XPT 22 2K 543

newdirblk 12 2K 936

in_multi 6 2K 8
ipsecpolicy 2 2K 2
acpidev 20 2K 20

select 10 2K 40

msi 9 2K 9
clone 9 2K 9
tun 7 2K 7

sctp_stro 1 1K 1832
softdep 1 1K 1

sahead 1 1K 1
secasvar 1 1K 1
nhops 6 1K 8

vnodemarker 2 1K 58

NFSD session 1 1K 1
CAM periph 4 1K 271

ipsec 3 1K 3
sctp_ifn 6 1K 14

mld 6 1K 6
igmp 6 1K 6
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 89
pci_link 10 1K 10

inpcbpolicy 22 1K 196
DEVFSP 10 1K 15
crypto 4 1K 4
encap_export_host 12 1K 12
freework 3 1K 942
sctp_atky 8 1K 9167
sctp_stri 1 1K 1834
freeblks 2 1K 941

pfil 4 1K 4
cdev 2 1K 2

chacha20random 1 1K 1
osd 7 1K 18

NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1
DEVFS 9 1K 10
vnodes 1 1K 1
CAM SIM 2 1K 2
ktls 1 1K 1

procdesc 2 1K 12
feeder 7 1K 7
soname 7 1K 7161
tcpfunc 3 1K 3
loginclass 3 1K 7

prison 6 1K 6
lkpikmalloc 5 1K 6
aesni_data 2 1K 2
apmdev 1 1K 1
atkbddev 2 1K 2
CAM dev queue 2 1K 2

xform 2 1K 49

CAM I/O Scheduler 1 1K 1

CAM path 4 1K 1034
pmchooks 1 1K 1
nexusdev 7 1K 7

sctp_athm 5 1K 5501
sctp_vrf 1 1K 1
sctp_aadr 1 1K 918
vnet 1 1K 1
entropy 2 1K 45

acpiintr 1 1K 1
pmc 1 1K 1

sctp_map 2 1K 3664

cpus 2 1K 2
vnet_data_free 1 1K 1
Per-cpu 1 1K 1

filecaps 2 1K 98
p1003.1b 1 1K 1
chd data 0 0K 0
sctp_mcore 0 0K 0
sctp_socko 0 0K 1779
sctp_iter 0 0K 10
sctp_mvrf 0 0K 0
sctp_cpal 0 0K 0

sctp_cmsg 0 0K 0
sctp_stre 0 0K 0
sctp_athi 0 0K 0

sctp_a_it 0 0K 10
pf_table 0 0K 0
pf_rule 0 0K 0
pf_altq 0 0K 0
pf_osfp 0 0K 0

pf_temp 0 0K 0
mqdata 0 0K 0

tcp_do 0 0K 0
tcp_fsb 0 0K 0
cubic data 0 0K 0
dctcp data 0 0K 0
htcp data 0 0K 0
vegas data 0 0K 0
cdg data 0 0K 0

savedino 0 0K 204

sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0

sbdep 0 0K 7

jsegdep 0 0K 0
jseg 0 0K 0
jfreefrag 0 0K 0
jfreeblk 0 0K 0
jnewblk 0 0K 0
jmvref 0 0K 0
jremref 0 0K 0
jaddref 0 0K 0
freedep 0 0K 0

freefrag 0 0K 2
allocindir 0 0K 0

ip6opt 0 0K 6
ip6_msource 0 0K 0
ip6_moptions 0 0K 0
in6_mfilter 0 0K 0

frag6 0 0K 0
tcplog 0 0K 0
tcp_hwpace 0 0K 0
acpipwr 0 0K 0
acpi_perf 0 0K 0
LRO 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0

ip_moptions 0 0K 0

in_mfilter 0 0K 0
ipid 0 0K 0
80211scan 0 0K 0
80211ratectl 0 0K 0
80211power 0 0K 0
80211nodeie 0 0K 0
80211node 0 0K 0
80211mesh_gt 0 0K 0
80211mesh_rt 0 0K 0
80211perr 0 0K 0
80211prep 0 0K 0
80211preq 0 0K 0
80211dfs 0 0K 0
80211crypto 0 0K 0
80211vap 0 0K 0
iflib 0 0K 0
vlan 0 0K 0
gif 0 0K 0
ifdescr 0 0K 0
zlib 0 0K 0
fadvise 0 0K 0

VN POLL 0 0K 0
twsbuf 0 0K 0
statfs 0 0K 1135
namei_tracker 0 0K 0
export_host 0 0K 0
cl_savebuf 0 0K 2

twe_commands 0 0K 0
twa_commands 0 0K 0

tcp_log_dev 0 0K 0

midi buffers 0 0K 0
mixer 0 0K 0
ac97 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
hdaa 0 0K 0
acpicmbat 0 0K 0
SIIS driver 0 0K 0

CAM CCB 0 0K 1941

PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
osti_cacheable 0 0K 0

mbuf_tag 0 0K 97

tempbuff 0 0K 0
tempbuff 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
lDevFlags * malloc 0 0K 0
tiDeviceHandle_t * malloc 0 0K 0
ag_portal_data_t malloc 0 0K 0
ag_device_t malloc 0 0K 0
STLock malloc 0 0K 0
CCB List 0 0K 0
sr_iov 0 0K 0
OCS 0 0K 0
OCS 0 0K 0
nvme 0 0K 0
nvd 0 0K 0
netmap 0 0K 0
mwldev 0 0K 0
MVS driver 0 0K 0
CAM ccb queue 0 0K 0
mrsasbuf 0 0K 0
mpt_user 0 0K 0
mps_user 0 0K 0
accf 0 0K 0
pts 0 0K 0

iov 0 0K 14963
ioctlops 0 0K 102
eventfd 0 0K 0

Witness 0 0K 0
stack 0 0K 0
MPSSAS 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
sbuf 0 0K 288
md_sectors 0 0K 0
firmware 0 0K 0
compressor 0 0K 0
md_disk 0 0K 0
SWAP 0 0K 0
malodev 0 0K 0
LED 0 0K 0

sysctltmp 0 0K 684

sysctl 0 0K 3
ekcd 0 0K 0
dumper 0 0K 0
sendfile 0 0K 0
rctl 0 0K 0
ix_sriov 0 0K 0
aacraidcam 0 0K 0
aacraid_buf 0 0K 0
ix 0 0K 0
ipsbuf 0 0K 0
cache 0 0K 0
iirbuf 0 0K 0

kcovinfo 0 0K 0

prison_racct 0 0K 0
Fail Points 0 0K 0

sigio 0 0K 1

mbuf_jumbo_page 4096 8320 991 13520 0 254 38137856 0
pbuf 2624 0 989 0 0 2 2595136 0
mbuf 256 8663 907 49743 0 254 2449920 0
BUF TRIE 144 186 11574 586 0 62 1693440 0
malloc-384 384 4203 7 4203 0 30 1616640 0
malloc-128 128 11312 34 11426 0 126 1452288 0
malloc-4096 4096 327 1 495 0 2 1343488 0
UMA Slabs 0 112 10166 19 10166 0 126 1140720 0
vmem btag 56 15724 91 15724 0 254 885640 0
FFS inode 1160 513 26 1455 0 8 625240 0
RADIX NODE 144 3367 240 49635 0 62 519408 0

lkpimm 160 1 2324 1 0 62 372000 0
lkpicurr 160 2 2323 2 0 62 372000 0

THREAD 1808 146 19 1191 0 8 298320 0
VM OBJECT 264 1056 69 28243 0 30 297000 0
malloc-4096 4096 66 2 2399 0 2 278528 0
VNODE 448 548 73 1492 0 30 278208 0
malloc-64 64 4099 122 14136 0 254 270144 0

malloc-65536 65536 4 0 4 0 1 262144 0

256 Bucket 2048 119 3 10993 0 8 249856 0
malloc-16 16 14033 217 17778 0 254 228000 0
malloc-384 384 386 204 1017 0 30 226560 0
DEVCTL 1024 21 199 150 0 0 225280 0
malloc-16384 16384 9 4 949 0 1 212992 0

UMA Zones 768 242 2 242 0 16 187392 0

malloc-256 256 511 209 4750 0 62 184320 0
malloc-32 32 5361 183 5550 0 254 177408 0
malloc-128 128 1278 24 29921 0 126 166656 0
malloc-128 128 1108 39 4073 0 126 146816 0
FFS2 dinode 256 513 27 1455 0 62 138240 0
S VFS Cache 104 1023 264 1981 0 126 133848 0
MAP ENTRY 96 1098 288 63906 0 126 133056 0

malloc-65536 65536 2 0 2 0 1 131072 0

malloc-65536 65536 0 2 206 0 1 131072 0

malloc-65536 65536 2 0 2 0 1 131072 0

malloc-1024 1024 110 6 127 0 16 118784 0

ksiginfo 112 49 995 116 0 126 116928 0
malloc-128 128 658 210 1391 0 126 111104 0
malloc-2048 2048 7 47 1948 0 8 110592 0
VMSPACE 2544 32 10 1834 0 4 106848 0
sctp_asoc 2288 1 44 1832 0 254 102960 0
mbuf_cluster 2048 45 1 45 0 254 94208 0
malloc-256 256 159 201 2706 0 62 92160 0

UMA Kegs 384 227 6 227 0 30 89472 0

PROC 1336 54 12 1855 0 8 88176 0
filedesc0 1072 55 22 1856 0 8 82544 0

malloc-16384 16384 4 1 179 0 1 81920 0
malloc-8192 8192 5 5 134 0 1 81920 0

malloc-65536 65536 1 0 1 0 1 65536 0
malloc-65536 65536 0 1 8 0 1 65536 0

malloc-32768 32768 0 2 130 0 1 65536 0
malloc-32768 32768 2 0 2 0 1 65536 0

g_bio 408 0 160 5217 0 30 65280 0
socket 944 30 34 3282 0 254 60416 0
128 Bucket 1024 43 12 661 0 16 56320 0

malloc-4096 4096 12 1 23 0 2 53248 0

malloc-16384 16384 3 0 3 0 1 49152 0
malloc-8192 8192 6 0 6 0 1 49152 0

malloc-2048 2048 4 20 511 0 8 49152 0
malloc-2048 2048 5 19 1839 0 8 49152 0
malloc-256 256 158 22 185 0 62 46080 0
malloc-256 256 157 23 2254 0 62 46080 0
32 Bucket 256 60 120 3275 0 62 46080 0
malloc-1024 1024 9 35 2348 0 16 45056 0
malloc-64 64 567 126 18041 0 254 44352 0
sctp_ep 1280 3 30 1835 0 254 42240 0
clpbuf 2624 0 16 20 0 16 41984 0

malloc-8192 8192 5 0 5 0 1 40960 0

pcpu-8 8 4655 465 4811 0 254 40960 0
64 Bucket 512 66 14 2019 0 30 40960 0
malloc-256 256 111 39 1077 0 62 38400 0

DIRHASH 1024 34 2 34 0 16 36864 0

NAMEI 1024 0 36 17836 0 16 36864 0

malloc-4096 4096 9 0 9 0 2 36864 0

malloc-32768 32768 1 0 1 0 1 32768 0

malloc-8192 8192 2 2 4 0 1 32768 0
malloc-8192 8192 4 0 4 0 1 32768 0

pcpu-64 64 487 25 487 0 254 32768 0

sctp_raddr 736 0 44 1832 0 254 32384 0
malloc-64 64 478 26 690 0 254 32256 0
malloc-384 384 76 4 125 0 30 30720 0
malloc-1024 1024 13 15 1319 0 16 28672 0
malloc-128 128 9 208 2095 0 126 27776 0
malloc-384 384 5 65 4584 0 30 26880 0
TURNSTILE 136 166 23 166 0 62 25704 0

malloc-2048 2048 12 0 203 0 8 24576 0

malloc-512 512 1 47 1835 0 30 24576 0
malloc-64 64 22 356 5274 0 254 24192 0

ttyinq 160 135 15 300 0 62 24000 0

ttyoutq 256 72 18 160 0 62 23040 0

pipe 744 20 10 372 0 16 22320 0
malloc-4096 4096 3 2 1139 0 2 20480 0
malloc-4096 4096 2 3 6 0 2 20480 0

malloc-1024 1024 17 3 17 0 16 20480 0

PWD 32 18 612 1039 0 254 20160 0
malloc-64 64 195 120 3861 0 254 20160 0
malloc-32 32 304 326 8871 0 254 20160 0
Files 80 129 121 10628 0 126 20000 0

Mountpoints 2752 2 5 2 0 4 19264 0

malloc-384 384 36 14 36 0 30 19200 0

SLEEPQUEUE 88 166 26 166 0 126 16896 0

malloc-8192 8192 2 0 2 0 1 16384 0
malloc-4096 4096 2 2 85 0 2 16384 0

malloc-2048 2048 3 5 25 0 8 16384 0
malloc-2048 2048 5 3 103 0 8 16384 0

malloc-1024 1024 11 5 11 0 16 16384 0

malloc-64 64 155 97 161 0 254 16128 0
malloc-32 32 27 477 4131 0 254 16128 0
KNOTE 160 26 74 5654 0 62 16000 0
8 Bucket 80 47 153 673 0 126 16000 0
malloc-128 128 88 36 1037 0 126 15872 0
malloc-384 384 32 8 34 0 30 15360 0
malloc-256 256 43 17 211 0 62 15360 0
malloc-256 256 36 24 1019 0 62 15360 0
malloc-256 256 34 26 2486 0 62 15360 0
tcpcb 1080 3 11 7 0 254 15120 0

malloc-1024 1024 8 4 9 0 16 12288 0

malloc-512 512 10 14 200 0 30 12288 0
malloc-32 32 160 218 271 0 254 12096 0
16 Bucket 144 38 46 238 0 62 12096 0
malloc-16 16 346 404 584 0 254 12000 0
udp_inpcb 496 14 10 181 0 254 11904 0
sctp_chunk 152 2 76 1834 0 254 11856 0
kenv 258 15 30 1033 0 30 11610 0
unpcb 256 11 34 1221 0 254 11520 0
mbuf_packet 256 4 41 6561 0 254 11520 0

malloc-8192 8192 1 0 1 0 1 8192 0

malloc-2048 2048 2 2 2 0 8 8192 0
malloc-1024 1024 2 6 12 0 16 8192 0
malloc-1024 1024 1 7 18 0 16 8192 0
malloc-512 512 1 15 2 0 30 8192 0
malloc-512 512 3 13 59 0 30 8192 0
malloc-512 512 6 10 6 0 30 8192 0

rtentry 176 30 16 34 0 62 8096 0

PGRP 88 25 67 45 0 126 8096 0
ertt_txseginfo 40 0 202 237 0 254 8080 0
rl_entry 40 40 162 40 0 254 8080 0
sctp_asconf_ack 48 1 167 918 0 254 8064 0
sctp_laddr 48 0 168 12 0 254 8064 0
udpcb 32 6 246 181 0 254 8064 0
ertt 72 3 109 7 0 126 8064 0
malloc-64 64 14 112 95 0 254 8064 0
malloc-64 64 17 109 22 0 254 8064 0
malloc-32 32 133 119 186 0 254 8064 0
malloc-32 32 25 227 53 0 254 8064 0
malloc-32 32 38 214 810 0 254 8064 0
4 Bucket 48 7 161 74 0 254 8064 0
2 Bucket 32 49 203 592 0 254 8064 0
vtnet_tx_hdr 24 0 334 1962 0 254 8016 0
malloc-16 16 5 495 14 0 254 8000 0

malloc-16 16 16 484 19 0 254 8000 0
malloc-16 16 187 313 1417 0 254 8000 0

malloc-16 16 26 474 25154 0 254 8000 0
malloc-16 16 13 487 5538 0 254 8000 0
ripcb 496 5 11 8 0 254 7936 0
tcp_inpcb 496 3 13 7 0 254 7936 0
malloc-128 128 26 36 120 0 126 7936 0
malloc-128 128 10 52 22 0 126 7936 0
routing nhops 256 27 3 34 0 62 7680 0

malloc-384 384 1 19 349 0 30 7680 0

FPU_save_area 832 1 8 1 0 16 7488 0
cpuset 104 7 55 7 0 126 6448 0

epoch_record pcpu 256 4 12 4 0 62 4096 0
malloc-2048 2048 1 1 1 0 8 4096 0

malloc-512 512 4 4 4 0 30 4096 0

pcpu-16 16 7 249 7 0 254 4096 0

hostcache 64 1 62 1 0 254 4032 0

syncache 168 0 24 5 0 254 4032 0
UMA Slabs 1 176 9 13 9 0 62 3872 0
malloc-384 384 1 9 2 0 30 3840 0

mqnode 416 3 6 3 0 30 3744 0
KMAP ENTRY 96 12 27 14 0 0 3744 0
vmem 1856 1 1 1 0 8 3712 0
SMR CPU 32 3 60 3 0 254 2016 0
SMR SHARED 24 3 60 3 0 254 1512 0
FFS1 dinode 128 0 0 0 0 126 0 0
da_ccb 544 0 0 0 0 16 0 0
ada_ccb 272 0 0 0 0 30 0 0
swblk 136 0 0 0 0 62 0 0
swpctrie 144 0 0 0 0 62 0 0

sctp_asconf 40 0 0 0 0 254 0 0

sctp_stream_msg_out 112 0 0 0 0 254 0 0
sctp_readq 152 0 0 0 0 254 0 0

cdg_qdiffsample 16 0 0 0 0 254 0 0

pf state scrubs 40 0 0 0 0 254 0 0
pf frag entries 40 0 0 0 0 254 0 0
pf frags 248 0 0 0 0 62 0 0
pf table entries 160 0 0 0 0 62 0 0
pf table entry counters 64 0 0 0 0 254 0 0
pf source nodes 136 0 0 0 0 254 0 0
pf state keys 88 0 0 0 0 126 0 0

pf states 304 0 0 0 0 254 0 0

pf tags 104 0 0 0 0 126 0 0
pf mtags 48 0 0 0 0 254 0 0

tcp_bbr_pcb 832 0 0 0 0 16 0 0
tcp_bbr_map 128 0 0 0 0 126 0 0
tcp_rack_pcb 832 0 0 0 0 16 0 0
tcp_rack_map 112 0 0 0 0 126 0 0
udplite_inpcb 496 0 0 0 0 254 0 0

tcp_log_node 120 0 0 0 0 126 0 0
tcp_log_bucket 176 0 0 0 0 62 0 0

tcp_log 416 0 0 0 0 254 0 0

tcpreass 48 0 0 0 0 254 0 0
tfo_ccache_entries 80 0 0 0 0 126 0 0
tfo 4 0 0 0 0 254 0 0

sackhole 32 0 0 0 0 254 0 0
tcptw 88 0 0 0 0 254 0 0

ipq 56 0 0 0 0 254 0 0
IPsec SA lft_c 16 0 0 0 0 254 0 0

itimer 352 0 0 0 0 30 0 0

AIOLIO 272 0 0 0 0 30 0 0
AIOCB 552 0 0 0 0 16 0 0

AIOP 32 0 0 0 0 254 0 0
AIO 208 0 0 0 0 62 0 0

TMPFS node 224 0 0 0 0 62 0 0

mqnotifier 216 0 0 0 0 62 0 0
mvdata 64 0 0 0 0 254 0 0
mqueue 248 0 0 0 0 62 0 0
NCLNODE 584 0 0 0 0 16 0 0
LTS VFS Cache 360 0 0 0 0 30 0 0
L VFS Cache 320 0 0 0 0 30 0 0
STS VFS Cache 144 0 0 0 0 62 0 0

cryptop 280 0 0 0 0 30 0 0

linux_dma_object 24 0 0 0 0 254 0 0

linux_dma_pctrie 144 0 0 0 0 62 0 0
IOMMU_MAP_ENTRY 120 0 0 0 0 126 0 0
ktls_session 192 0 0 0 0 62 0 0
mbuf_jumbo_16k 16384 0 0 0 0 254 0 0
mbuf_jumbo_9k 9216 0 0 0 0 254 0 0
audit_record 1280 0 0 0 0 8 0 0
domainset 40 0 0 0 0 254 0 0
MAC labels 40 0 0 0 0 254 0 0
vnpbuf 2624 0 0 0 0 64 0 0
mdpbuf 2624 0 0 0 0 3 0 0
nfspbuf 2624 0 0 0 0 16 0 0
swwbuf 2624 0 0 0 0 8 0 0
swrbuf 2624 0 0 0 0 16 0 0
umtx_shm 88 0 0 0 0 126 0 0
umtx pi 96 0 0 0 0 126 0 0
rangeset pctrie nodes 144 0 0 0 0 62 0 0
malloc-65536 65536 0 0

syzbot

unread,

Aug 17, 2021, 8:24:27 PM8/17/21

to syzkaller-f...@googlegroups.com

syzbot has found a reproducer for the following issue on:

HEAD commit: aa68b3bb2e11 rtld: constify most variables holding referen..

git tree: https://github.com/freebsd/freebsd-src.git main

console output: https://syzkaller.appspot.com/x/log.txt?x=11d0b765300000
dashboard link: https://syzkaller.appspot.com/bug?extid=9e998ed20958f50b993e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12f26c99300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16fccbd9300000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9e998e...@syzkaller.appspotmail.com

panic: ASan: Invalid access, 8-byte write at 0xfffffe009e9c2ac0, UMAUseAfterFree(fd)
cpuid = 1
time = 1629246048
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b5e7d0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b5e930
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b5ea10
panic() at panic+0xb5/frame 0xfffffe0053b5ead0
__asan_store8_noabort() at __asan_store8_noabort+0x376/frame 0xfffffe0053b5eb90
sctp_timer_stop() at sctp_timer_stop+0x82b/frame 0xfffffe0053b5ec00
sctp_stop_timers_for_shutdown() at sctp_stop_timers_for_shutdown+0xd2/frame 0xfffffe0053b5ec30
sctp_process_control() at sctp_process_control+0x5974/frame 0xfffffe0053b5f300
sctp_common_input_processing() at sctp_common_input_processing+0xb26/frame 0xfffffe0053b5f560
sctp6_input_with_port() at sctp6_input_with_port+0x5a1/frame 0xfffffe0053b5f730
sctp6_input() at sctp6_input+0x1f/frame 0xfffffe0053b5f750
ip6_input() at ip6_input+0x2531/frame 0xfffffe0053b5f9b0
swi_net() at swi_net+0x2e5/frame 0xfffffe0053b5fa50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b5fbb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b5fbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b5fbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100034 ]
Stopped at kdb_enter+0x6b: movq $0,0x28ea6ca(%rip)

db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b
es 0x3b
fs 0x13
gs 0x1b
ss 0x28
rax 0x12

rcx 0x46035c979441d77
rdx 0xdffff7c000000000
rbx 0
rsp 0xfffffe0053b5e910
rbp 0xfffffe0053b5e930
rsi 0x1
rdi 0xffffffff840889c0 cov_trace_pc
r8 0x3
r9 0xfffffe0053b5e448
r10 0
r11 0xbf
r12 0xfffffe0053e2b1e0
r13 0xfffffe0053b5e901
r14 0xffffffff82c657c0 .str.18
r15 0xffffffff82c657c0 .str.18
rip 0xffffffff817a0c6b kdb_enter+0x6b
rflags 0x46
kdb_enter+0x6b: movq $0,0x28ea6ca(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053df6a70:

state: NORMAL
uid: 0 gids: 0

parent: pid 0 at 0xffffffff8402c6c0
ABI: null
flag: 0x10000284 flag2: 0
reaper: 0xffffffff8402c6c0 reapsubtree: 12
sigparent: 20
vmspace: 0xffffffff8402d640
(map 0xffffffff8402d640)
(map.pmap 0xffffffff8402d700)
(pmap 0xffffffff8402d760)
threads: 23
100012 I [swi6: task queue]
100013 I [swi6: Giant taskq]
100015 I [swi5: fast taskq]

100032 I [swi4: clock (0)]
100033 I [swi4: clock (1)]

100034 Run CPU 1 [swi1: netisr 0]
100035 I [swi3: vm]
100036 I [swi1: hpts]
100037 I [swi1: hpts]
100050 I [irq24: virtio_pci0]
100051 I [irq25: virtio_pci0]
100052 I [irq26: virtio_pci0]
100053 I [irq27: virtio_pci0]
100054 I [irq28: virtio_pci1]
100055 I [irq29: virtio_pci1]
100056 I [irq30: virtio_pci1]
100057 I [irq31: virtio_pci1]
100058 I [irq32: virtio_pci1]
100063 I [irq10: virtio_pci2]
100065 I [irq1: atkbd0]
100066 I [irq12: psm0]
100067 I [swi0: uart uart++]
100075 I [swi1: pf send]

db> ps
pid ppid pgrp uid state wmesg wchan cmd

952 786 784 0 RE syz-executor3674227
786 784 784 0 S wait 0xfffffe009e4be000 syz-executor3674227
784 782 784 0 Ss pause 0xfffffe009e435b20 csh
782 694 782 0 Ss select 0xfffffe009e4d3940 sshd
760 1 760 0 Ss+ ttyin 0xfffffe0057000cb0 getty
759 1 759 0 Ss+ ttyin 0xfffffe00575f24b0 getty
758 1 758 0 Ss+ ttyin 0xfffffe00575f28b0 getty
757 1 757 0 Ss+ ttyin 0xfffffe00575f2cb0 getty
756 1 756 0 Ss+ ttyin 0xfffffe00583b70b0 getty
755 1 755 0 Ss+ ttyin 0xfffffe00583b74b0 getty
754 1 754 0 Ss+ ttyin 0xfffffe00583b78b0 getty
753 1 753 0 Ss+ ttyin 0xfffffe00583b7cb0 getty
752 1 752 0 Ss+ ttyin 0xfffffe00574770b0 getty
698 1 698 0 Ss nanslp 0xffffffff84058200 cron
694 1 694 0 Ss select 0xfffffe009e3f0740 sshd
507 1 507 0 Ss select 0xfffffe0095646140 syslogd
436 1 436 0 Ss select 0xfffffe009e3f0c40 devd
435 1 435 65 Ss select 0xfffffe009e3f08c0 dhclient
350 1 350 0 Ss select 0xfffffe009e3f0a40 dhclient
347 1 347 0 Ss select 0xfffffe009e2d1740 dhclient
23 0 0 0 DL syncer 0xffffffff84180380 [syncer]
22 0 0 0 DL vlruwt 0xfffffe0058537538 [vnlru]
21 0 0 0 DL (threaded) [bufdaemon]
100085 D qsleep 0xffffffff8417e1a0 [bufdaemon]
100088 D - 0xffffffff83411f80 [bufspacedaemon-0]
100098 D sdflush 0xfffffe0095675ce8 [/ worker]
20 0 0 0 DL psleep 0xffffffff841b65c0 [vmdaemon]

19 0 0 0 DL (threaded) [pagedaemon]

100083 D psleep 0xffffffff841aa0f8 [dom0]
100089 D launds 0xffffffff841aa104 [laundry: dom0]
100090 D umarcl 0xffffffff81e9c760 [uma]
18 0 0 0 DL - 0xffffffff83e0f320 [rand_harvestq]
17 0 0 0 DL waiting 0xffffffff8488d460 [sctp_iterator]
16 0 0 0 DL pftm 0xffffffff84a75e20 [pf purge]
15 0 0 0 DL - 0xffffffff841794c0 [soaiod4]
9 0 0 0 DL - 0xffffffff841794c0 [soaiod3]
8 0 0 0 DL - 0xffffffff841794c0 [soaiod2]
7 0 0 0 DL - 0xffffffff841794c0 [soaiod1]

6 0 0 0 DL (threaded) [cam]

100048 D - 0xffffffff83c94ac0 [doneq0]
100049 D - 0xffffffff83c94a40 [async]
100082 D - 0xffffffff83c948c0 [scanner]
14 0 0 0 DL seqstat 0xfffffe0056abc888 [sequencer 00]
5 0 0 0 DL crypto_ 0xfffffe0053c0cc80 [crypto returns 1]
4 0 0 0 DL crypto_ 0xfffffe0053c0cc30 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff841a41a0 [crypto]

13 0 0 0 DL (threaded) [geom]

100039 D - 0xffffffff8402b7c0 [g_event]
100040 D - 0xffffffff8402b800 [g_up]
100041 D - 0xffffffff8402b840 [g_down]

2 0 0 0 DL (threaded) [KTLS]

100029 D - 0xfffffe0053dff000 [thr_0]
100030 D - 0xfffffe0053dff080 [thr_1]
100031 D - 0xffffffff8417a748 [alloc_0]

12 0 0 0 RL (threaded) [intr]

100012 I [swi6: task queue]
100013 I [swi6: Giant taskq]
100015 I [swi5: fast taskq]

100032 I [swi4: clock (0)]
100033 I [swi4: clock (1)]

11 0 0 0 RL (threaded) [idle]
100003 CanRun [idle: cpu0]
100004 CanRun [idle: cpu1]

1 0 1 0 SLs wait 0xfffffe0053d54538 [init]
10 0 0 0 DL audit_w 0xffffffff841a5140 [audit]

0 0 0 0 RLs (threaded) [kernel]

100000 D swapin 0xffffffff8402c6c0 [swapper]
100005 D - 0xfffffe0053df0e00 [if_config_tqg_0]
100006 D - 0xfffffe0053df0d00 [softirq_0]
100007 D - 0xfffffe0053df0c00 [softirq_1]
100008 D - 0xfffffe0053df0b00 [if_io_tqg_0]
100009 D - 0xfffffe0053df0a00 [if_io_tqg_1]
100010 D - 0xfffffe0053c07c00 [in6m_free taskq]
100011 D - 0xfffffe0053c07b00 [deferred_unmount ta]
100014 Run CPU 0 [thread taskq]
100016 D - 0xfffffe0053c07600 [linuxkpi_irq_wq]
100017 D - 0xfffffe0053c07500 [kqueue_ctx taskq]
100018 D - 0xfffffe0053c07400 [aiod_kick taskq]
100019 D - 0xfffffe0053c07300 [pci_hp taskq]
100020 D - 0xfffffe0053c07200 [inm_free taskq]
100021 D - 0xfffffe0053c07100 [linuxkpi_short_wq_0]
100022 D - 0xfffffe0053c07100 [linuxkpi_short_wq_1]
100023 D - 0xfffffe0053c07100 [linuxkpi_short_wq_2]
100024 D - 0xfffffe0053c07100 [linuxkpi_short_wq_3]
100025 D - 0xfffffe0053c07000 [linuxkpi_long_wq_0]
100026 D - 0xfffffe0053c07000 [linuxkpi_long_wq_1]
100027 D - 0xfffffe0053c07000 [linuxkpi_long_wq_2]
100028 D - 0xfffffe0053c07000 [linuxkpi_long_wq_3]
100038 D - 0xfffffe0054189e00 [firmware taskq]
100042 D - 0xfffffe0054189d00 [crypto_0]
100043 D - 0xfffffe0054189d00 [crypto_1]
100059 D - 0xfffffe0054189900 [vtnet0 rxq 0]
100060 D - 0xfffffe0054189800 [vtnet0 txq 0]
100061 D - 0xfffffe0054189700 [vtnet0 rxq 1]
100062 D - 0xfffffe0054189600 [vtnet0 txq 1]
100064 D vtbslp 0xfffffe0056b20a00 [virtio_balloon]
100068 D - 0xfffffe0054189400 [mca taskq]
100073 D - 0xffffffff82c6c741 [deadlkres]
100078 D - 0xfffffe0058344b00 [acpi_task_0]
100079 D - 0xfffffe0058344b00 [acpi_task_1]
100080 D - 0xfffffe0058344b00 [acpi_task_2]
100081 D - 0xfffffe0054189a00 [CAM taskq]
db> show all locks
Process 952 (syz-executor3674227) thread 0xfffffe009e446740 (100112)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009e9be8b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:692
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009ea22468) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_usrreq.c:674
Process 12 (intr) thread 0xfffffe0053e2b1e0 (100034)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009e9c0380) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2143
Process 0 (kernel) thread 0xfffffe0053df93a0 (100014)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840aec80) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:789

exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:784
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5

devbuf 4217 4339K 4245
tcp_hpts 6 3201K 6
sysctloid 34385 2031K 34456
vtbuf 24 1968K 46
kobj 327 1308K 486
newblk 130 1057K 721
vfscache 3 1025K 3
pcb 31 544K 2039
inodedep 2 513K 71

ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 472K 4

subproc 102 198K 1011
acpica 1674 184K 55752
vnet_data 1 168K 1
vmem 3 146K 4
tidhash 3 141K 3
linker 356 140K 384
pagedep 2 129K 19
tfo_ccache 1 128K 1
sem 4 106K 4
DEVFS1 104 104K 113
bus 989 81K 3490

mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 510 64K 510

umtx 286 36K 286
kdtrace 171 35K 1412
temp 18 33K 1631

hostcache 1 32K 1
shm 1 32K 1

DEVFS3 123 31K 133

msg 4 30K 4
gtaskqueue 18 26K 18

kbdmux 6 22K 6
DEVFS_RULE 56 20K 56

BPF 10 18K 10
ufs_mount 4 17K 5

proc 3 17K 3
tty 16 16K 16

sctp_timw 63 16K 63
ithread 99 16K 99
bus-sc 34 15K 1693
KTRACE 100 13K 100

kenv 95 12K 95
eventhandler 133 12K 133

ifaddr 30 12K 32
routetbl 50 11K 176

CAM queue 5 11K 1528

GEOM 61 10K 489
rman 84 10K 425

UART 12 9K 12
devstat 4 9K 4

ksem 1 8K 1
rpc 2 8K 2

bmsafemap 1 8K 40

shmfd 1 8K 1
pfs_vncache 1 8K 1

pfs_nodes 20 8K 20
audit_evclass 237 8K 295
taskqueue 63 7K 63

sglist 5 7K 5
CAM DEV 3 6K 510

cred 22 6K 244

ufs_dirhash 24 5K 24
UMA 270 5K 270

sctp_atcl 11 5K 2608
vt 11 5K 11
ifnet 3 5K 3

memdesc 1 4K 1
MCA 32 4K 32

plimit 16 4K 338
evdev 4 4K 4
filedesc 1 4K 1
acpisem 28 4K 28
hhook 15 4K 17
ether_multi 40 4K 50
lltable 11 4K 11
pf_ifnet 5 3K 6
sctp_stro 3 3K 652
in6_multi 25 3K 25
terminal 11 3K 11
kqueue 44 3K 955
pwddesc 43 3K 953
session 19 3K 32
uidinfo 3 3K 9

local_apic 1 2K 1
io_apic 1 2K 1

fpukern_ctx 2 2K 2
ipsec-saq 2 2K 2
selfd 27 2K 13243
lockf 16 2K 26
Unitno 27 2K 39

CAM XPT 22 2K 543

proc-args 36 2K 495
sctp_stri 3 2K 650

ipsecpolicy 2 2K 2
acpidev 20 2K 20

sctp_atky 18 2K 3588

msi 9 2K 9
clone 9 2K 9

softdep 1 1K 1

sahead 1 1K 1
secasvar 1 1K 1

vnodemarker 2 1K 26

NFSD session 1 1K 1
CAM periph 4 1K 271

select 7 1K 29
ipsec 3 1K 3
nhops 6 1K 6

toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 89
pci_link 10 1K 10

sctp_ifa 5 1K 6
crypto 4 1K 4
ip6ndp 4 1K 5
encap_export_host 12 1K 12
in_multi 2 1K 4

pfil 4 1K 4
cdev 2 1K 2

chacha20random 1 1K 1
osd 7 1K 18

inpcbpolicy 10 1K 137
sctp_ifn 2 1K 6

NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1

DEVFSP 4 1K 9
DEVFS 9 1K 10
indirdep 1 1K 3
mld 2 1K 2
igmp 2 1K 2

vnodes 1 1K 1
CAM SIM 2 1K 2
ktls 1 1K 1

feeder 7 1K 7
tcpfunc 3 1K 3

loginclass 3 1K 7
prison 6 1K 6

sctp_athm 11 1K 2609

lkpikmalloc 5 1K 6
aesni_data 2 1K 2

nexusdev 8 1K 8

apmdev 1 1K 1
atkbddev 2 1K 2
CAM dev queue 2 1K 2

diradd 1 1K 36
xform 2 1K 49

CAM I/O Scheduler 1 1K 1

CAM path 4 1K 1034

procdesc 1 1K 6
pmchooks 1 1K 1
soname 4 1K 4292
sctp_map 6 1K 1304
tun 3 1K 3

sctp_vrf 1 1K 1
vnet 1 1K 1

entropy 2 1K 35

acpiintr 1 1K 1
pmc 1 1K 1
cpus 2 1K 2
vnet_data_free 1 1K 1
Per-cpu 1 1K 1

freework 1 1K 26
p1003.1b 1 1K 1
filecaps 1 1K 66
tcp_do 0 0K 0
tcp_fsb 0 0K 0

vegas data 0 0K 0

chd data 0 0K 0

dctcp data 0 0K 0

htcp data 0 0K 0
mqdata 0 0K 0

pf_table 0 0K 0
pf_rule 0 0K 0
pf_altq 0 0K 0

pf_osfp 0 0K 0
pf_temp 0 0K 0

cdg data 0 0K 0

cubic data 0 0K 0

sctp_mcore 0 0K 0
sctp_socko 0 0K 324
sctp_iter 0 0K 4
sctp_mvrf 0 0K 0
sctp_cpal 0 0K 0

sctp_cmsg 0 0K 0
sctp_stre 0 0K 0
sctp_athi 0 0K 0

sctp_a_it 0 0K 4
sctp_aadr 0 0K 324

savedino 0 0K 18

sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0

sbdep 0 0K 6

jsegdep 0 0K 0
jseg 0 0K 0
jfreefrag 0 0K 0
jfreeblk 0 0K 0
jnewblk 0 0K 0
jmvref 0 0K 0
jremref 0 0K 0
jaddref 0 0K 0
freedep 0 0K 0

newdirblk 0 0K 8
dirrem 0 0K 28
mkdir 0 0K 16
freefile 0 0K 26
freeblks 0 0K 25
freefrag 0 0K 1
allocindir 0 0K 0

ip6opt 0 0K 3

ip6_msource 0 0K 0
ip6_moptions 0 0K 0
in6_mfilter 0 0K 0

frag6 0 0K 0
tcplog 0 0K 0
tcp_hwpace 0 0K 0
acpipwr 0 0K 0
acpi_perf 0 0K 0
LRO 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0

ip_moptions 0 0K 0

VN POLL 0 0K 0
twsbuf 0 0K 0
statfs 0 0K 201
namei_tracker 0 0K 0
export_host 0 0K 0
cl_savebuf 0 0K 3

twe_commands 0 0K 0
twa_commands 0 0K 0

tcp_log_dev 0 0K 0

midi buffers 0 0K 0
mixer 0 0K 0
ac97 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
hdaa 0 0K 0
acpicmbat 0 0K 0
SIIS driver 0 0K 0

CAM CCB 0 0K 523

PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
osti_cacheable 0 0K 0

mbuf_tag 0 0K 27

iov 0 0K 13676
ioctlops 0 0K 86
eventfd 0 0K 0

sysctltmp 0 0K 659

sysctl 0 0K 3
ekcd 0 0K 0
dumper 0 0K 0
sendfile 0 0K 0
rctl 0 0K 0
ix_sriov 0 0K 0
aacraidcam 0 0K 0
aacraid_buf 0 0K 0
ix 0 0K 0
ipsbuf 0 0K 0
cache 0 0K 0
iirbuf 0 0K 0

kcovinfo 0 0K 0

prison_racct 0 0K 0
Fail Points 0 0K 0

sigio 0 0K 1

mbuf_jumbo_page 4096 8320 990 14902 0 254 38133760 0

pbuf 2624 0 989 0 0 2 2595136 0

mbuf 256 8580 990 28354 0 254 2449920 0
BUF TRIE 144 179 11581 578 0 62 1693440 0
malloc-384 384 4162 8 4163 0 30 1601280 0
malloc-128 128 12069 21 12137 0 126 1547520 0
malloc-4096 4096 371 4 1439 0 2 1536000 0
UMA Slabs 0 112 10118 31 10118 0 126 1136688 0
vmem btag 56 15505 94 15505 0 254 873544 0
FFS inode 1160 486 25 512 0 8 592760 0
RADIX NODE 144 3010 177 24409 0 62 458928 0
lkpimm 168 1 2327 1 0 62 391104 0
lkpicurr 168 2 2326 2 0 62 391104 0

malloc-65536 65536 4 0 4 0 1 262144 0

malloc-64 64 3939 156 5785 0 254 262080 0
THREAD 1808 126 17 458 0 8 258544 0
256 Bucket 2048 121 3 10880 0 8 253952 0
VNODE 448 516 42 544 0 30 249984 0
VM OBJECT 264 859 71 14736 0 30 245520 0
malloc-16 16 14021 229 14088 0 254 228000 0
DEVCTL 1024 0 220 126 0 0 225280 0
malloc-65536 65536 1 2 137 0 1 196608 0

UMA Zones 768 242 2 242 0 16 187392 0

malloc-32 32 5302 242 6355 0 254 177408 0
malloc-256 256 221 409 947 0 62 161280 0
malloc-128 128 1184 56 25994 0 126 158720 0
malloc-65536 65536 0 2 54 0 1 131072 0

malloc-65536 65536 2 0 2 0 1 131072 0

FFS2 dinode 256 486 24 512 0 62 130560 0
malloc-1024 1024 114 6 124 0 16 122880 0
sctp_ep 1280 5 88 981 0 254 119040 0
ksiginfo 112 40 1004 64 0 126 116928 0
MAP ENTRY 96 779 439 40884 0 126 116928 0
socket 944 22 98 2315 0 254 113280 0
S VFS Cache 104 973 80 1011 0 126 109512 0
malloc-4096 4096 26 0 37 0 2 106496 0
mbuf_cluster 2048 45 1 45 0 254 94208 0

UMA Kegs 384 227 6 227 0 30 89472 0

malloc-8192 8192 7 3 35 0 1 81920 0
VMSPACE 2544 21 9 931 0 4 76320 0
PROC 1336 43 14 952 0 8 76152 0
malloc-2048 2048 6 28 1063 0 8 69632 0
filedesc0 1072 44 19 953 0 8 67536 0
malloc-65536 65536 1 0 1 0 1 65536 0
malloc-65536 65536 1 0 1 0 1 65536 0

malloc-32768 32768 2 0 2 0 1 65536 0
malloc-32768 32768 0 2 130 0 1 65536 0

g_bio 408 0 150 4961 0 30 61200 0
128 Bucket 1024 40 15 617 0 16 56320 0
malloc-384 384 69 71 2666 0 30 53760 0
malloc-2048 2048 6 20 993 0 8 53248 0

malloc-16384 16384 3 0 3 0 1 49152 0

malloc-16384 16384 2 1 17 0 1 49152 0

malloc-8192 8192 6 0 6 0 1 49152 0

malloc-128 128 322 50 474 0 126 47616 0
malloc-256 256 140 40 474 0 62 46080 0
sctp_asoc 2288 3 17 652 0 254 45760 0
malloc-1024 1024 6 38 1396 0 16 45056 0
malloc-64 64 487 206 14135 0 254 44352 0
malloc-64 64 537 156 1644 0 254 44352 0
malloc-256 256 140 25 466 0 62 42240 0
32 Bucket 256 51 114 5718 0 62 42240 0
clpbuf 2624 0 16 25 0 16 41984 0
malloc-8192 8192 4 1 6 0 1 40960 0
64 Bucket 512 65 15 1309 0 30 40960 0

DIRHASH 1024 34 2 34 0 16 36864 0

NAMEI 1024 0 36 12324 0 16 36864 0
pcpu-8 8 4229 379 4257 0 254 36864 0

malloc-32768 32768 1 0 1 0 1 32768 0

malloc-16384 16384 2 0 2 0 1 32768 0
malloc-16384 16384 0 2 160 0 1 32768 0

pcpu-64 64 487 25 487 0 254 32768 0

malloc-256 256 67 53 835 0 62 30720 0
malloc-64 64 144 297 1638 0 254 28224 0
malloc-128 128 56 161 987 0 126 27776 0
malloc-384 384 60 10 70 0 30 26880 0
malloc-256 256 8 97 1068 0 62 26880 0
da_ccb 544 0 49 1366 0 16 26656 0
malloc-8192 8192 2 1 103 0 1 24576 0
malloc-1024 1024 5 19 694 0 16 24576 0
malloc-1024 1024 18 6 22 0 16 24576 0
malloc-512 512 11 37 658 0 30 24576 0

ttyinq 160 135 15 300 0 62 24000 0

malloc-128 128 145 41 1146 0 126 23808 0

ttyoutq 256 72 18 160 0 62 23040 0

malloc-384 384 1 59 71 0 30 23040 0
malloc-256 256 60 30 796 0 62 23040 0
TURNSTILE 136 144 24 144 0 62 22848 0
malloc-1024 1024 19 1 19 0 16 20480 0
malloc-64 64 251 64 13607 0 254 20160 0
Files 80 71 179 7606 0 126 20000 0
malloc-128 128 115 40 197 0 126 19840 0

Mountpoints 2752 2 5 2 0 4 19264 0

malloc-256 256 55 20 587 0 62 19200 0
pipe 744 6 19 286 0 16 18600 0
SLEEPQUEUE 88 144 48 144 0 126 16896 0
malloc-16384 16384 1 0 1 0 1 16384 0

malloc-8192 8192 2 0 2 0 1 16384 0
malloc-8192 8192 2 0 2 0 1 16384 0
malloc-8192 8192 2 0 2 0 1 16384 0

malloc-4096 4096 3 1 6 0 2 16384 0
malloc-4096 4096 3 1 634 0 2 16384 0
malloc-2048 2048 7 1 7 0 8 16384 0
malloc-2048 2048 7 1 7 0 8 16384 0
sctp_raddr 736 2 20 652 0 254 16192 0
ertt_txseginfo 40 0 404 436 0 254 16160 0
malloc-32 32 49 455 560 0 254 16128 0
malloc-32 32 293 211 1250 0 254 16128 0
malloc-256 256 46 14 416 0 62 15360 0
tcpcb 1080 3 11 7 0 254 15120 0
malloc-4096 4096 1 2 202 0 2 12288 0
malloc-2048 2048 4 2 16 0 8 12288 0
malloc-512 512 1 23 119 0 30 12288 0
16 Bucket 144 43 41 296 0 62 12096 0
8 Bucket 80 39 111 714 0 126 12000 0
udp_inpcb 496 6 18 126 0 254 11904 0
malloc-128 128 48 45 3365 0 126 11904 0
kenv 258 15 30 1026 0 30 11610 0
unpcb 256 7 38 1180 0 254 11520 0
mbuf_packet 256 0 45 2047 0 254 11520 0
malloc-384 384 20 10 367 0 30 11520 0
malloc-4096 4096 1 1 3 0 2 8192 0
malloc-4096 4096 0 2 4 0 2 8192 0
malloc-2048 2048 0 4 40 0 8 8192 0
malloc-2048 2048 3 1 3 0 8 8192 0
malloc-2048 2048 1 3 192 0 8 8192 0
malloc-1024 1024 3 5 163 0 16 8192 0
malloc-1024 1024 2 6 22 0 16 8192 0
malloc-512 512 7 9 7 0 30 8192 0
malloc-512 512 2 14 61 0 30 8192 0
rtentry 176 13 33 17 0 62 8096 0
PGRP 88 19 73 32 0 126 8096 0
rl_entry 40 33 169 33 0 254 8080 0
sctp_laddr 48 4 164 654 0 254 8064 0
syncache 168 0 48 5 0 254 8064 0
udpcb 32 6 246 126 0 254 8064 0

ertt 72 3 109 7 0 126 8064 0

PWD 32 10 242 102 0 254 8064 0
malloc-64 64 30 96 47 0 254 8064 0
malloc-64 64 11 115 398 0 254 8064 0
malloc-64 64 41 85 1338 0 254 8064 0
malloc-32 32 128 124 983 0 254 8064 0
malloc-32 32 24 228 43 0 254 8064 0
malloc-32 32 56 196 1732 0 254 8064 0
malloc-32 32 56 196 2936 0 254 8064 0
4 Bucket 48 5 163 57 0 254 8064 0
2 Bucket 32 49 203 492 0 254 8064 0
vtnet_tx_hdr 24 0 334 2471 0 254 8016 0
KNOTE 160 0 50 8 0 62 8000 0
malloc-16 16 18 482 50 0 254 8000 0
malloc-16 16 51 449 257 0 254 8000 0
malloc-16 16 62 438 2863 0 254 8000 0
malloc-16 16 191 309 1429 0 254 8000 0
malloc-16 16 9 491 9 0 254 8000 0
malloc-16 16 276 224 1575 0 254 8000 0
malloc-16 16 14 486 25354 0 254 8000 0
ripcb 496 1 15 4 0 254 7936 0

tcp_inpcb 496 3 13 7 0 254 7936 0

malloc-128 128 29 33 79 0 126 7936 0
sctp_chunk 152 3 49 650 0 254 7904 0
routing nhops 256 10 20 17 0 62 7680 0
malloc-384 384 8 12 10 0 30 7680 0
malloc-384 384 1 19 20 0 30 7680 0

FPU_save_area 832 1 8 1 0 16 7488 0

cpuset 104 8 54 8 0 126 6448 0

epoch_record pcpu 256 4 12 4 0 62 4096 0

malloc-1024 1024 2 2 2 0 16 4096 0
malloc-512 512 2 6 36 0 30 4096 0
malloc-512 512 1 7 1 0 30 4096 0
malloc-512 512 0 8 1 0 30 4096 0
malloc-512 512 1 7 1 0 30 4096 0

pcpu-16 16 7 249 7 0 254 4096 0

sctp_asconf_ack 48 1 83 324 0 254 4032 0

hostcache 64 1 62 1 0 254 4032 0

malloc-32 32 22 104 43 0 254 4032 0
UMA Slabs 1 176 8 14 8 0 62 3872 0

mqnode 416 3 6 3 0 30 3744 0
KMAP ENTRY 96 12 27 14 0 0 3744 0
vmem 1856 1 1 1 0 8 3712 0
SMR CPU 32 3 60 3 0 254 2016 0
SMR SHARED 24 3 60 3 0 254 1512 0
FFS1 dinode 128 0 0 0 0 126 0 0

ada_ccb 272 0 0 0 0 30 0 0
swblk 136 0 0 0 0 62 0 0
swpctrie 144 0 0 0 0 62 0 0

sctp_asconf 40 0 0 0 0 254 0 0

sctp_stream_msg_out 112 0 0 0 0 254 0 0
sctp_readq 152 0 0 0 0 254 0 0

cdg_qdiffsample 16 0 0 0 0 254 0 0

pf states 312 0 0 0 0 254 0 0

pf tags 104 0 0 0 0 126 0 0
pf mtags 48 0 0 0 0 254 0 0

tcp_rack_pcb 832 0 0 0 0 16 0 0
tcp_rack_map 112 0 0 0 0 126 0 0
tcp_bbr_pcb 832 0 0 0 0 16 0 0
tcp_bbr_map 128 0 0 0 0 126 0 0
udplite_inpcb 496 0 0 0 0 254 0 0

tcp_log_node 120 0 0 0 0 126 0 0
tcp_log_bucket 176 0 0 0 0 62 0 0

tcp_log 416 0 0 0 0 254 0 0

tcpreass 48 0 0 0 0 254 0 0
tfo_ccache_entries 80 0 0 0 0 126 0 0
tfo 4 0 0 0 0 254 0 0

sackhole 32 0 0 0 0 254 0 0
tcptw 88 0 0 0 0 254 0 0

ipq 56 0 0 0 0 254 0 0
IPsec SA lft_c 16 0 0 0 0 254 0 0

itimer 352 0 0 0 0 30 0 0

AIOLIO 272 0 0 0 0 30 0 0
AIOCB 552 0 0 0 0 16 0 0

AIOP 32 0 0 0 0 254 0 0
AIO 208 0 0 0 0 62 0 0

mqnotifier 216 0 0 0 0 62 0 0
mvdata 64 0 0 0 0 254 0 0
mqueue 248 0 0 0 0 62 0 0

NCLNODE 592 0 0 0 0 16 0 0

TMPFS node 224 0 0 0 0 62 0 0

LTS VFS Cache 360 0 0 0 0 30 0 0
L VFS Cache 320 0 0 0 0 30 0 0
STS VFS Cache 144 0 0 0 0 62 0 0

cryptop 280 0 0 0 0 30 0 0

linux_dma_object 24 0 0 0 0 254 0 0

swrbuf 2624 0 0 0 0 16 0 0
umtx_shm 88 0 0 0 0 126 0 0
umtx pi 96 0 0 0 0 126 0 0
rangeset pctrie nodes 144 0 0 0 0 62 0 0
malloc-65536 65536 0 0 0 0 1 0 0
malloc-65536 65536 0 0 0 0 1 0 0
malloc-32768 32768 0 0

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