panic: sbsndptr_noadv: sb_mb is NULL
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syzbot
Apr 14, 2020, 8:16:13 AM4/14/20
to syzkaller-f...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 7ce2fd66 Re-organize the NFS file handle affinity code for..
git tree: freebsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17f9a8dde00000
dashboard link: https://syzkaller.appspot.com/bug?extid=dcf58d568fa4d35b9d89
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+dcf58d...@syzkaller.appspotmail.com
panic: sbsndptr_noadv: sb_mb is NULL
cpuid = 0
time = 2147484059
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00255bd360
vpanic() at vpanic+0x1c7/frame 0xfffffe00255bd3c0
panic() at panic+0x43/frame 0xfffffe00255bd420
sbsndptr_noadv() at sbsndptr_noadv+0xae/frame 0xfffffe00255bd460
rack_output() at rack_output+0x51f5/frame 0xfffffe00255bd700
tcp_usr_send() at tcp_usr_send+0x5c7/frame 0xfffffe00255bd7e0
sosend_generic() at sosend_generic+0x8fd/frame 0xfffffe00255bd8e0
sosend() at sosend+0xc6/frame 0xfffffe00255bd950
kern_sendit() at kern_sendit+0x33d/frame 0xfffffe00255bda00
sendit() at sendit+0x224/frame 0xfffffe00255bda60
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe00255bdac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe00255bdbf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00255bdbf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x41332a, rsp = 0x7fffdffdcf38, rbp = 0x6 ---
KDB: enter: panic
[ thread pid 9091 tid 100761 ]
Stopped at kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b ll+0x1a
es 0x3b ll+0x1a
fs 0x13
gs 0x1b
ss 0x28 ll+0x7
rax 0x12
rcx 0xfffffe0027c00000
rdx 0x3ffff
rbx 0
rsp 0xfffffe00255bd340
rbp 0xfffffe00255bd360
rsi 0x40001
rdi 0xffffffff810b8546 vprintf+0x176
r8 0
r9 0xffffffff
r10 0
r11 0xfffffe0025a5c810
r12 0xffffffff82068e80 ddb_dbbe
r13 0
r14 0xffffffff81949084
r15 0xffffffff81949084
rip 0xffffffff810ad7c7 kdb_enter+0x67
rflags 0x86 ll+0x65
kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db> show proc
Process 9091 (syz-executor.3) at 0xfffff8003bde9520:
state: NORMAL
uid: 0 gids: 0, 0, 5
parent: pid 771 at 0xfffff8003b3d4a40
ABI: FreeBSD ELF64
arguments: /root/syz-executor.3
reaper: 0xfffff80003310000 reapsubtree: 1
sigparent: 20
vmspace: 0xfffffe0025a38000
(map 0xfffffe0025a38000)
(map.pmap 0xfffffe0025a380c0)
(pmap 0xfffffe0025a38120)
threads: 3
100316 Run CPU 1 syz-executor.3
100373 S sbwait 0xfffffe00239c455c syz-executor.3
100761 Run CPU 0 syz-executor.3
db> ps
pid ppid pgrp uid state wmesg wchan cmd
9091 771 771 0 R (threaded) syz-executor.3
100316 Run CPU 1 syz-executor.3
100373 S sbwait 0xfffffe00239c455c syz-executor.3
100761 Run CPU 0 syz-executor.3
9086 772 772 0 S (threaded) syz-executor.2
101042 S nanslp 0xffffffff8252c201 syz-executor.2
100737 S connec 0xfffffe00239c9298 syz-executor.2
100751 S uwait 0xfffff8003be33280 syz-executor.2
2668 1 2668 65 Ss select 0xfffff8003b9cf940 dhclient
2234 1 2234 0 Ss select 0xfffff80003a362c0 dhclient
2231 1 2231 0 Ss select 0xfffff8003b104e40 dhclient
2209 1 2209 65 Ss select 0xfffff8003b1ef6c0 dhclient
1761 1 1761 0 Ss select 0xfffff8003be63240 dhclient
1758 1 1758 0 Ss select 0xfffff8003be63640 dhclient
1738 1 1738 65 Ss select 0xfffff8003be630c0 dhclient
1293 1 1293 0 Ss select 0xfffff8003b1ef9c0 dhclient
1290 1 1290 0 Ss select 0xfffff8003b1ef5c0 dhclient
1269 1 1269 65 Ss select 0xfffff8003b1ef540 dhclient
812 1 812 0 Ss select 0xfffff8003b21b1c0 dhclient
807 1 807 0 Ss select 0xfffff8003b21b9c0 dhclient
773 768 773 0 Ss piperd 0xfffff80003caf2f8 syz-executor.1
772 768 772 0 Ss nanslp 0xffffffff8252c201 syz-executor.2
771 768 771 0 Rs syz-executor.3
770 768 770 0 Ss piperd 0xfffff80003ca45f0 syz-executor.0
768 766 766 0 S (threaded) syz-fuzzer
100093 S kqread 0xfffff80003c11500 syz-fuzzer
100111 S uwait 0xfffff8003b478d00 syz-fuzzer
100112 S uwait 0xfffff8003b442000 syz-fuzzer
100113 S uwait 0xfffff8003b442100 syz-fuzzer
100114 S uwait 0xfffff80003a4d080 syz-fuzzer
100115 S uwait 0xfffff80003a4d180 syz-fuzzer
100116 S uwait 0xfffff8003b442200 syz-fuzzer
100117 S uwait 0xfffff8003b442300 syz-fuzzer
100118 S uwait 0xfffff80003a4d280 syz-fuzzer
100119 S uwait 0xfffff80003a4d380 syz-fuzzer
100120 S uwait 0xfffff80003a4a080 syz-fuzzer
766 764 766 0 Ss pause 0xfffff8003b39d0a8 csh
764 682 764 0 Ss select 0xfffff80003a33dc0 sshd
748 1 748 0 Ss+ ttyin 0xfffff8000381a8b0 getty
747 1 747 0 Ss+ ttyin 0xfffff80003b708b0 getty
746 1 746 0 Ss+ ttyin 0xfffff80003b730b0 getty
745 1 745 0 Ss+ ttyin 0xfffff80003b738b0 getty
744 1 744 0 Ss+ ttyin 0xfffff800033bc0b0 getty
743 1 743 0 Ss+ ttyin 0xfffff800033bc8b0 getty
742 1 742 0 Ss+ ttyin 0xfffff800033c10b0 getty
741 1 741 0 Ss+ ttyin 0xfffff800033c18b0 getty
740 1 740 0 Ss+ ttyin 0xfffff800033c30b0 getty
686 1 686 0 Ss nanslp 0xffffffff8252c201 cron
682 1 682 0 Ss select 0xfffff8003b106b40 sshd
495 1 495 0 Ss select 0xfffff80003a339c0 syslogd
424 1 424 0 Ss select 0xfffff80003a363c0 devd
423 1 423 65 Ss select 0xfffff80003a36440 dhclient
338 1 338 0 Ss select 0xfffff80003a364c0 dhclient
335 1 335 0 Ss select 0xfffff8003b106840 dhclient
23 0 0 0 DL vlruwt 0xfffff800033ef520 [vnlru]
22 0 0 0 DL syncer 0xffffffff82618098 [syncer]
21 0 0 0 DL (threaded) [bufdaemon]
100069 D qsleep 0xffffffff826173d8 [bufdaemon]
100076 D - 0xffffffff8200aa00 [bufspacedaemon-0]
100086 D sdflush 0xfffff800033878e8 [/ worker]
20 0 0 0 DL psleep 0xffffffff8263e348 [vmdaemon]
19 0 0 0 DL (threaded) [pagedaemon]
100067 D psleep 0xffffffff82632918 [dom0]
100074 D launds 0xffffffff82632924 [laundry: dom0]
100075 D umarcl 0xffffffff8154adf0 [uma]
18 0 0 0 DL - 0xffffffff8235fe20 [rand_harvestq]
17 0 0 0 DL pftm 0xffffffff82b543a0 [pf purge]
16 0 0 0 DL waiting 0xffffffff8261a810 [sctp_iterator]
15 0 0 0 DL - 0xffffffff82616a2c [soaiod4]
9 0 0 0 DL - 0xffffffff82616a2c [soaiod3]
8 0 0 0 DL - 0xffffffff82616a2c [soaiod2]
7 0 0 0 DL - 0xffffffff82616a2c [soaiod1]
6 0 0 0 DL (threaded) [cam]
100033 D - 0xffffffff82237b40 [doneq0]
100066 D - 0xffffffff82237a10 [scanner]
5 0 0 0 DL crypto_ 0xfffff800033e8090 [crypto returns 1]
4 0 0 0 DL crypto_ 0xfffff800033e8030 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff82630040 [crypto]
14 0 0 0 DL seqstat 0xfffff80003388888 [sequencer 00]
13 0 0 0 DL (threaded) [geom]
100024 D - 0xffffffff8250b180 [g_event]
100025 D - 0xffffffff8250b188 [g_up]
100026 D - 0xffffffff8250b190 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100017 D - 0xfffff8000335c080 [thr_0]
100018 D - 0xfffff8000335c0c0 [thr_1]
12 0 0 0 WL (threaded) [intr]
100010 I [swi6: Giant taskq]
100013 I [swi5: fast taskq]
100016 I [swi6: task queue]
100019 I [swi3: vm]
100020 I [swi4: clock (0)]
100021 I [swi4: clock (1)]
100022 I [swi1: netisr 0]
100034 I [irq24: virtio_pci0]
100035 I [irq25: virtio_pci0]
100036 I [irq26: virtio_pci0]
100037 I [irq27: virtio_pci0]
100038 I [irq28: virtio_pci1]
100039 I [irq29: virtio_pci1]
100040 I [irq30: virtio_pci1]
100041 I [irq31: virtio_pci1]
100042 I [irq32: virtio_pci1]
100047 I [irq10: virtio_pci2]
100049 I [irq1: atkbd0]
100050 I [irq12: psm0]
100051 I [swi0: uart uart++]
100060 I [swi1: pf send]
100072 I [swi1: hpts]
100073 I [swi1: hpts]
11 0 0 0 RL (threaded) [idle]
100003 CanRun [idle: cpu0]
100004 CanRun [idle: cpu1]
1 0 1 0 SLs wait 0xfffff80003310000 [init]
10 0 0 0 DL audit_w 0xffffffff82630518 [audit]
0 0 0 0 DLs (threaded) [kernel]
100000 D swapin 0xffffffff8250b710 [swapper]
100005 D - 0xfffff80003215800 [if_config_tqg_0]
100006 D - 0xfffff80003215600 [softirq_0]
100007 D - 0xfffff80003215400 [softirq_1]
100008 D - 0xfffff80003215200 [if_io_tqg_0]
100009 D - 0xfffff80003215000 [if_io_tqg_1]
100011 D - 0xfffff80003342000 [in6m_free taskq]
100012 D - 0xfffff80003343e00 [thread taskq]
100014 D - 0xfffff80003343c00 [kqueue_ctx taskq]
100015 D - 0xfffff80003343b00 [aiod_kick taskq]
100023 D - 0xfffff80003343900 [firmware taskq]
100028 D - 0xfffff80003340e00 [crypto_0]
100029 D - 0xfffff80003340e00 [crypto_1]
100043 D - 0xfffff80003340500 [vtnet0 rxq 0]
100044 D - 0xfffff80003340400 [vtnet0 txq 0]
100045 D - 0xfffff80003340300 [vtnet0 rxq 1]
100046 D - 0xfffff80003340200 [vtnet0 txq 1]
100048 D vtbslp 0xfffff80003519580 [virtio_balloon]
100052 D - 0xfffff80003340100 [mca taskq]
100057 D - 0xffffffff81cec6b1 [deadlkres]
100062 D - 0xfffff80003340900 [acpi_task_0]
100063 D - 0xfffff80003340900 [acpi_task_1]
100064 D - 0xfffff80003340900 [acpi_task_2]
100065 D - 0xfffff80003340800 [CAM taskq]
db> show all locks
Process 9091 (syz-executor.3) thread 0xfffffe0025bfd800 (100373)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe00239c4500) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
Process 9091 (syz-executor.3) thread 0xfffffe0025a5c300 (100761)
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239c45e0) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/rack/../../../netinet/tcp_stacks/rack.c:8438
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003e469d78) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:965
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239c4600) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5
devbuf 4213 4851K 4241
tcp_hpts 5 3201K 5
vtbuf 24 1968K 46
sysctloid 28437 1659K 28501
kobj 332 1328K 488
newblk 9 1026K 21973
vfscache 4 1025K 4
inodedep 100 562K 10651
pcb 54 545K 10446
ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 388K 4
subproc 143 285K 9176
acpica 1674 185K 52709
vnet_data 1 168K 1
pagedep 9 130K 8849
tfo_ccache 1 128K 1
filedesc 17 117K 16175
sem 4 106K 4
DEVFS1 105 105K 122
linker 243 92K 276
BPF 46 88K 46
bus 964 78K 3376
mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 496 62K 496
umtx 360 45K 360
kdtrace 190 37K 37533
temp 35 33K 3236
hostcache 1 32K 1
shm 1 32K 33
DEVFS3 124 31K 134
msg 4 30K 4
DEVFS_RULE 56 27K 56
vmem 3 26K 5
gtaskqueue 18 26K 18
ifaddr 74 25K 78
dirrem 91 23K 8548
kbdmux 6 22K 6
lltable 49 19K 82
ufs_mount 3 17K 4
proc 3 17K 3
tty 16 16K 16
tidhash 1 16K 1
ithread 98 16K 98
ether_multi 172 14K 189
bus-sc 30 14K 1431
KTRACE 100 13K 100
ifnet 7 13K 7
freefile 91 12K 8540
kenv 95 12K 99
eventhandler 132 12K 132
in6_multi 89 11K 89
pfs_nodes 20 10K 20
GEOM 60 10K 487
rman 82 10K 423
bmsafemap 2 9K 9440
cred 33 9K 1345
select 65 9K 65
UART 12 9K 12
devstat 4 9K 4
rpc 2 8K 2
shmfd 1 8K 66
pfs_vncache 1 8K 1
routetbl 58 8K 67
audit_evclass 232 8K 290
kqueue 63 7K 9098
CAM DEV 3 6K 510
plimit 24 6K 964
vt 11 6K 11
sglist 5 6K 5
CAM queue 5 6K 1528
DEVFSP 78 5K 82
taskqueue 45 5K 45
ufs_dirhash 24 5K 24
session 35 5K 48
pgrp 35 5K 60
pf_ifnet 10 5K 19
lockf 40 5K 434
UMA 250 5K 250
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4
kcovinfo 64 4K 68
sctp_timw 15 4K 15
hhook 13 4K 13
proc-args 52 3K 692
acpisem 22 3K 22
terminal 11 3K 11
sctp_atcl 5 3K 2468
uidinfo 4 3K 121
sctp_ifa 18 3K 18
local_apic 1 2K 1
io_apic 1 2K 1
ipsec-saq 2 2K 2
sctp_stro 2 2K 22
ip6ndp 12 2K 21
Unitno 33 2K 36553
CAM XPT 22 2K 543
in_multi 6 2K 10
acpidev 20 2K 20
msi 9 2K 9
inpcbpolicy 35 2K 26661
tun 7 2K 7
freework 5 2K 12891
softdep 1 1K 1
mkdir 8 1K 16184
freeblks 4 1K 8793
ipsecpolicy 1 1K 1
sahead 1 1K 1
secasvar 1 1K 1
clone 8 1K 8
vnodemarker 2 1K 2084
NFSD session 1 1K 1
CAM periph 4 1K 271
mld 6 1K 6
sctp_ifn 6 1K 6
igmp 6 1K 6
nhops 6 1K 6
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 86
pci_link 10 1K 10
crypto 3 1K 3
newdirblk 4 1K 8092
diradd 4 1K 8587
pfil 4 1K 4
chacha20random 1 1K 1
CAM SIM 2 1K 2
epoch 4 1K 4
cdev 2 1K 2
encap_export_host 8 1K 8
osd 3 1K 9
sctp_atky 7 1K 2490
vnodes 1 1K 6
NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1
DEVFS 9 1K 10
feeder 7 1K 7
tcpfunc 3 1K 3
loginclass 3 1K 6
soname 6 1K 15094
CAM dev queue 2 1K 2
CAM I/O Scheduler 1 1K 1
apmdev 1 1K 1
atkbddev 2 1K 2
CAM path 4 1K 1034
ktls 1 1K 1
pmchooks 1 1K 1
prison 4 1K 4
nexusdev 5 1K 5
sctp_athm 5 1K 2468
filecaps 5 1K 124
entropy 2 1K 45
sctp_vrf 1 1K 1
sctp_map 4 1K 44
vnet 1 1K 1
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_table 0 0K 0
pf_rule 0 0K 0
pf_altq 0 0K 0
pf_osfp 0 0K 0
pf_temp 0 0K 0
ath_hal 0 0K 0
madt_table 0 0K 2
athdev 0 0K 0
ata_pci 0 0K 0
ata_dma 0 0K 0
ata_generic 0 0K 0
amr 0 0K 0
scsi_da 0 0K 69
ata_da 0 0K 0
pvscsi 0 0K 0
smartpqi 0 0K 0
scsi_ch 0 0K 0
scsi_cd 0 0K 0
USBdev 0 0K 0
USB 0 0K 0
AHCI driver 0 0K 0
agp 0 0K 0
iavf 0 0K 0
ixl 0 0K 0
nvme_da 0 0K 0
acpipwr 0 0K 0
twsbuf 0 0K 0
twe_commands 0 0K 0
twa_commands 0 0K 0
tcp_log_dev 0 0K 4
midi buffers 0 0K 0
fpukern_ctx 0 0K 0
mixer 0 0K 0
xen_intr 0 0K 0
ac97 0 0K 0
xen_hvm 0 0K 0
legacydrv 0 0K 0
qpidrv 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
dmar_idpgtbl 0 0K 0
dmar_dom 0 0K 0
dmar_ctx 0 0K 0
dmar_dmamap 0 0K 0
hdaa 0 0K 0
acpi_perf 0 0K 0
acpicmbat 0 0K 0
isci 0 0K 0
bxe_ilt 0 0K 0
xenbus 0 0K 0
SIIS driver 0 0K 0
vm_fictitious 0 0K 0
CAM CCB 0 0K 100010
PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
osti_cacheable 0 0K 0
tempbuff 0 0K 0
tempbuff 0 0K 0
UMAHash 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
vm_pgdata 0 0K 0
jblocks 0 0K 0
savedino 0 0K 8752
sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0
sbdep 0 0K 1030
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 6647
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
xform 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 52
ip6_msource 0 0K 0
ip6_moptions 0 0K 2
in6_mfilter 0 0K 0
frag6 0 0K 0
tcplog 0 0K 0
lDevFlags * malloc 0 0K 0
LRO 0 0K 0
sctp_mcore 0 0K 0
sctp_socko 0 0K 1836
sctp_iter 0 0K 13
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 13
sctp_aadr 0 0K 0
sctp_stri 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0
ip_moptions 0 0K 43
in_mfilter 0 0K 1
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 12
tiDeviceHandle_t * malloc 0 0K 0
statfs 0 0K 8477
export_host 0 0K 0
cl_savebuf 0 0K 2
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
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
MPSSAS 0 0K 0
mbuf_tag 0 0K 171
accf 0 0K 0
pts 0 0K 0
iov 0 0K 27471
ioctlops 0 0K 1076
Witness 0 0K 0
stack 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
md_sectors 0 0K 0
sbuf 0 0K 288
md_disk 0 0K 0
compressor 0 0K 0
malodev 0 0K 0
SWAP 0 0K 0
LED 0 0K 0
sysctltmp 0 0K 774
sysctl 0 0K 1
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
ix 0 0K 0
ipsbuf 0 0K 0
iirbuf 0 0K 0
cache 0 0K 0
aacraid_buf 0 0K 0
prison_racct 0 0K 0
Fail Points 0 0K 0
sigio 0 0K 23
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
nvlist 0 0K 0
SCSI ENC 0 0K 0
SCSI sa 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
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 diroffdiroff 0 0K 0
NEWdirectio 0 0K 0
NEWNFSnode 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
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
msdosfs_fat 0 0K 0
msdosfs_mount 0 0K 0
msdosfs_node 0 0K 0
DEVFS4 0 0K 0
DEVFS2 0 0K 0
gntdev 0 0K 0
privcmd_dev 0 0K 0
evtchn_dev 0 0K 0
xenstore 0 0K 0
scsi_pass 0 0K 0
ciss_data 0 0K 0
xnb 0 0K 0
xbbd 0 0K 0
xbd 0 0K 0
Balloon 0 0K 0
sysmouse 0 0K 0
vtfont 0 0K 0
db> show ktr
No such command; use "help" to list available commands
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 7ce2fd66 Re-organize the NFS file handle affinity code for..
git tree: freebsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17f9a8dde00000
dashboard link: https://syzkaller.appspot.com/bug?extid=dcf58d568fa4d35b9d89
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+dcf58d...@syzkaller.appspotmail.com
panic: sbsndptr_noadv: sb_mb is NULL
cpuid = 0
time = 2147484059
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00255bd360
vpanic() at vpanic+0x1c7/frame 0xfffffe00255bd3c0
panic() at panic+0x43/frame 0xfffffe00255bd420
sbsndptr_noadv() at sbsndptr_noadv+0xae/frame 0xfffffe00255bd460
rack_output() at rack_output+0x51f5/frame 0xfffffe00255bd700
tcp_usr_send() at tcp_usr_send+0x5c7/frame 0xfffffe00255bd7e0
sosend_generic() at sosend_generic+0x8fd/frame 0xfffffe00255bd8e0
sosend() at sosend+0xc6/frame 0xfffffe00255bd950
kern_sendit() at kern_sendit+0x33d/frame 0xfffffe00255bda00
sendit() at sendit+0x224/frame 0xfffffe00255bda60
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe00255bdac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe00255bdbf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00255bdbf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x41332a, rsp = 0x7fffdffdcf38, rbp = 0x6 ---
KDB: enter: panic
[ thread pid 9091 tid 100761 ]
Stopped at kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b ll+0x1a
es 0x3b ll+0x1a
fs 0x13
gs 0x1b
ss 0x28 ll+0x7
rax 0x12
rcx 0xfffffe0027c00000
rdx 0x3ffff
rbx 0
rsp 0xfffffe00255bd340
rbp 0xfffffe00255bd360
rsi 0x40001
rdi 0xffffffff810b8546 vprintf+0x176
r8 0
r9 0xffffffff
r10 0
r11 0xfffffe0025a5c810
r12 0xffffffff82068e80 ddb_dbbe
r13 0
r14 0xffffffff81949084
r15 0xffffffff81949084
rip 0xffffffff810ad7c7 kdb_enter+0x67
rflags 0x86 ll+0x65
kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db> show proc
Process 9091 (syz-executor.3) at 0xfffff8003bde9520:
state: NORMAL
uid: 0 gids: 0, 0, 5
parent: pid 771 at 0xfffff8003b3d4a40
ABI: FreeBSD ELF64
arguments: /root/syz-executor.3
reaper: 0xfffff80003310000 reapsubtree: 1
sigparent: 20
vmspace: 0xfffffe0025a38000
(map 0xfffffe0025a38000)
(map.pmap 0xfffffe0025a380c0)
(pmap 0xfffffe0025a38120)
threads: 3
100316 Run CPU 1 syz-executor.3
100373 S sbwait 0xfffffe00239c455c syz-executor.3
100761 Run CPU 0 syz-executor.3
db> ps
pid ppid pgrp uid state wmesg wchan cmd
9091 771 771 0 R (threaded) syz-executor.3
100316 Run CPU 1 syz-executor.3
100373 S sbwait 0xfffffe00239c455c syz-executor.3
100761 Run CPU 0 syz-executor.3
9086 772 772 0 S (threaded) syz-executor.2
101042 S nanslp 0xffffffff8252c201 syz-executor.2
100737 S connec 0xfffffe00239c9298 syz-executor.2
100751 S uwait 0xfffff8003be33280 syz-executor.2
2668 1 2668 65 Ss select 0xfffff8003b9cf940 dhclient
2234 1 2234 0 Ss select 0xfffff80003a362c0 dhclient
2231 1 2231 0 Ss select 0xfffff8003b104e40 dhclient
2209 1 2209 65 Ss select 0xfffff8003b1ef6c0 dhclient
1761 1 1761 0 Ss select 0xfffff8003be63240 dhclient
1758 1 1758 0 Ss select 0xfffff8003be63640 dhclient
1738 1 1738 65 Ss select 0xfffff8003be630c0 dhclient
1293 1 1293 0 Ss select 0xfffff8003b1ef9c0 dhclient
1290 1 1290 0 Ss select 0xfffff8003b1ef5c0 dhclient
1269 1 1269 65 Ss select 0xfffff8003b1ef540 dhclient
812 1 812 0 Ss select 0xfffff8003b21b1c0 dhclient
807 1 807 0 Ss select 0xfffff8003b21b9c0 dhclient
773 768 773 0 Ss piperd 0xfffff80003caf2f8 syz-executor.1
772 768 772 0 Ss nanslp 0xffffffff8252c201 syz-executor.2
771 768 771 0 Rs syz-executor.3
770 768 770 0 Ss piperd 0xfffff80003ca45f0 syz-executor.0
768 766 766 0 S (threaded) syz-fuzzer
100093 S kqread 0xfffff80003c11500 syz-fuzzer
100111 S uwait 0xfffff8003b478d00 syz-fuzzer
100112 S uwait 0xfffff8003b442000 syz-fuzzer
100113 S uwait 0xfffff8003b442100 syz-fuzzer
100114 S uwait 0xfffff80003a4d080 syz-fuzzer
100115 S uwait 0xfffff80003a4d180 syz-fuzzer
100116 S uwait 0xfffff8003b442200 syz-fuzzer
100117 S uwait 0xfffff8003b442300 syz-fuzzer
100118 S uwait 0xfffff80003a4d280 syz-fuzzer
100119 S uwait 0xfffff80003a4d380 syz-fuzzer
100120 S uwait 0xfffff80003a4a080 syz-fuzzer
766 764 766 0 Ss pause 0xfffff8003b39d0a8 csh
764 682 764 0 Ss select 0xfffff80003a33dc0 sshd
748 1 748 0 Ss+ ttyin 0xfffff8000381a8b0 getty
747 1 747 0 Ss+ ttyin 0xfffff80003b708b0 getty
746 1 746 0 Ss+ ttyin 0xfffff80003b730b0 getty
745 1 745 0 Ss+ ttyin 0xfffff80003b738b0 getty
744 1 744 0 Ss+ ttyin 0xfffff800033bc0b0 getty
743 1 743 0 Ss+ ttyin 0xfffff800033bc8b0 getty
742 1 742 0 Ss+ ttyin 0xfffff800033c10b0 getty
741 1 741 0 Ss+ ttyin 0xfffff800033c18b0 getty
740 1 740 0 Ss+ ttyin 0xfffff800033c30b0 getty
686 1 686 0 Ss nanslp 0xffffffff8252c201 cron
682 1 682 0 Ss select 0xfffff8003b106b40 sshd
495 1 495 0 Ss select 0xfffff80003a339c0 syslogd
424 1 424 0 Ss select 0xfffff80003a363c0 devd
423 1 423 65 Ss select 0xfffff80003a36440 dhclient
338 1 338 0 Ss select 0xfffff80003a364c0 dhclient
335 1 335 0 Ss select 0xfffff8003b106840 dhclient
23 0 0 0 DL vlruwt 0xfffff800033ef520 [vnlru]
22 0 0 0 DL syncer 0xffffffff82618098 [syncer]
21 0 0 0 DL (threaded) [bufdaemon]
100069 D qsleep 0xffffffff826173d8 [bufdaemon]
100076 D - 0xffffffff8200aa00 [bufspacedaemon-0]
100086 D sdflush 0xfffff800033878e8 [/ worker]
20 0 0 0 DL psleep 0xffffffff8263e348 [vmdaemon]
19 0 0 0 DL (threaded) [pagedaemon]
100067 D psleep 0xffffffff82632918 [dom0]
100074 D launds 0xffffffff82632924 [laundry: dom0]
100075 D umarcl 0xffffffff8154adf0 [uma]
18 0 0 0 DL - 0xffffffff8235fe20 [rand_harvestq]
17 0 0 0 DL pftm 0xffffffff82b543a0 [pf purge]
16 0 0 0 DL waiting 0xffffffff8261a810 [sctp_iterator]
15 0 0 0 DL - 0xffffffff82616a2c [soaiod4]
9 0 0 0 DL - 0xffffffff82616a2c [soaiod3]
8 0 0 0 DL - 0xffffffff82616a2c [soaiod2]
7 0 0 0 DL - 0xffffffff82616a2c [soaiod1]
6 0 0 0 DL (threaded) [cam]
100033 D - 0xffffffff82237b40 [doneq0]
100066 D - 0xffffffff82237a10 [scanner]
5 0 0 0 DL crypto_ 0xfffff800033e8090 [crypto returns 1]
4 0 0 0 DL crypto_ 0xfffff800033e8030 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff82630040 [crypto]
14 0 0 0 DL seqstat 0xfffff80003388888 [sequencer 00]
13 0 0 0 DL (threaded) [geom]
100024 D - 0xffffffff8250b180 [g_event]
100025 D - 0xffffffff8250b188 [g_up]
100026 D - 0xffffffff8250b190 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100017 D - 0xfffff8000335c080 [thr_0]
100018 D - 0xfffff8000335c0c0 [thr_1]
12 0 0 0 WL (threaded) [intr]
100010 I [swi6: Giant taskq]
100013 I [swi5: fast taskq]
100016 I [swi6: task queue]
100019 I [swi3: vm]
100020 I [swi4: clock (0)]
100021 I [swi4: clock (1)]
100022 I [swi1: netisr 0]
100034 I [irq24: virtio_pci0]
100035 I [irq25: virtio_pci0]
100036 I [irq26: virtio_pci0]
100037 I [irq27: virtio_pci0]
100038 I [irq28: virtio_pci1]
100039 I [irq29: virtio_pci1]
100040 I [irq30: virtio_pci1]
100041 I [irq31: virtio_pci1]
100042 I [irq32: virtio_pci1]
100047 I [irq10: virtio_pci2]
100049 I [irq1: atkbd0]
100050 I [irq12: psm0]
100051 I [swi0: uart uart++]
100060 I [swi1: pf send]
100072 I [swi1: hpts]
100073 I [swi1: hpts]
11 0 0 0 RL (threaded) [idle]
100003 CanRun [idle: cpu0]
100004 CanRun [idle: cpu1]
1 0 1 0 SLs wait 0xfffff80003310000 [init]
10 0 0 0 DL audit_w 0xffffffff82630518 [audit]
0 0 0 0 DLs (threaded) [kernel]
100000 D swapin 0xffffffff8250b710 [swapper]
100005 D - 0xfffff80003215800 [if_config_tqg_0]
100006 D - 0xfffff80003215600 [softirq_0]
100007 D - 0xfffff80003215400 [softirq_1]
100008 D - 0xfffff80003215200 [if_io_tqg_0]
100009 D - 0xfffff80003215000 [if_io_tqg_1]
100011 D - 0xfffff80003342000 [in6m_free taskq]
100012 D - 0xfffff80003343e00 [thread taskq]
100014 D - 0xfffff80003343c00 [kqueue_ctx taskq]
100015 D - 0xfffff80003343b00 [aiod_kick taskq]
100023 D - 0xfffff80003343900 [firmware taskq]
100028 D - 0xfffff80003340e00 [crypto_0]
100029 D - 0xfffff80003340e00 [crypto_1]
100043 D - 0xfffff80003340500 [vtnet0 rxq 0]
100044 D - 0xfffff80003340400 [vtnet0 txq 0]
100045 D - 0xfffff80003340300 [vtnet0 rxq 1]
100046 D - 0xfffff80003340200 [vtnet0 txq 1]
100048 D vtbslp 0xfffff80003519580 [virtio_balloon]
100052 D - 0xfffff80003340100 [mca taskq]
100057 D - 0xffffffff81cec6b1 [deadlkres]
100062 D - 0xfffff80003340900 [acpi_task_0]
100063 D - 0xfffff80003340900 [acpi_task_1]
100064 D - 0xfffff80003340900 [acpi_task_2]
100065 D - 0xfffff80003340800 [CAM taskq]
db> show all locks
Process 9091 (syz-executor.3) thread 0xfffffe0025bfd800 (100373)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe00239c4500) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
Process 9091 (syz-executor.3) thread 0xfffffe0025a5c300 (100761)
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239c45e0) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/rack/../../../netinet/tcp_stacks/rack.c:8438
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003e469d78) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:965
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239c4600) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5
devbuf 4213 4851K 4241
tcp_hpts 5 3201K 5
vtbuf 24 1968K 46
sysctloid 28437 1659K 28501
kobj 332 1328K 488
newblk 9 1026K 21973
vfscache 4 1025K 4
inodedep 100 562K 10651
pcb 54 545K 10446
ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 388K 4
subproc 143 285K 9176
acpica 1674 185K 52709
vnet_data 1 168K 1
pagedep 9 130K 8849
tfo_ccache 1 128K 1
filedesc 17 117K 16175
sem 4 106K 4
DEVFS1 105 105K 122
linker 243 92K 276
BPF 46 88K 46
bus 964 78K 3376
mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 496 62K 496
umtx 360 45K 360
kdtrace 190 37K 37533
temp 35 33K 3236
hostcache 1 32K 1
shm 1 32K 33
DEVFS3 124 31K 134
msg 4 30K 4
DEVFS_RULE 56 27K 56
vmem 3 26K 5
gtaskqueue 18 26K 18
ifaddr 74 25K 78
dirrem 91 23K 8548
kbdmux 6 22K 6
lltable 49 19K 82
ufs_mount 3 17K 4
proc 3 17K 3
tty 16 16K 16
tidhash 1 16K 1
ithread 98 16K 98
ether_multi 172 14K 189
bus-sc 30 14K 1431
KTRACE 100 13K 100
ifnet 7 13K 7
freefile 91 12K 8540
kenv 95 12K 99
eventhandler 132 12K 132
in6_multi 89 11K 89
pfs_nodes 20 10K 20
GEOM 60 10K 487
rman 82 10K 423
bmsafemap 2 9K 9440
cred 33 9K 1345
select 65 9K 65
UART 12 9K 12
devstat 4 9K 4
rpc 2 8K 2
shmfd 1 8K 66
pfs_vncache 1 8K 1
routetbl 58 8K 67
audit_evclass 232 8K 290
kqueue 63 7K 9098
CAM DEV 3 6K 510
plimit 24 6K 964
vt 11 6K 11
sglist 5 6K 5
CAM queue 5 6K 1528
DEVFSP 78 5K 82
taskqueue 45 5K 45
ufs_dirhash 24 5K 24
session 35 5K 48
pgrp 35 5K 60
pf_ifnet 10 5K 19
lockf 40 5K 434
UMA 250 5K 250
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4
kcovinfo 64 4K 68
sctp_timw 15 4K 15
hhook 13 4K 13
proc-args 52 3K 692
acpisem 22 3K 22
terminal 11 3K 11
sctp_atcl 5 3K 2468
uidinfo 4 3K 121
sctp_ifa 18 3K 18
local_apic 1 2K 1
io_apic 1 2K 1
ipsec-saq 2 2K 2
sctp_stro 2 2K 22
ip6ndp 12 2K 21
Unitno 33 2K 36553
CAM XPT 22 2K 543
in_multi 6 2K 10
acpidev 20 2K 20
msi 9 2K 9
inpcbpolicy 35 2K 26661
tun 7 2K 7
freework 5 2K 12891
softdep 1 1K 1
mkdir 8 1K 16184
freeblks 4 1K 8793
ipsecpolicy 1 1K 1
sahead 1 1K 1
secasvar 1 1K 1
clone 8 1K 8
vnodemarker 2 1K 2084
NFSD session 1 1K 1
CAM periph 4 1K 271
mld 6 1K 6
sctp_ifn 6 1K 6
igmp 6 1K 6
nhops 6 1K 6
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 86
pci_link 10 1K 10
crypto 3 1K 3
newdirblk 4 1K 8092
diradd 4 1K 8587
pfil 4 1K 4
chacha20random 1 1K 1
CAM SIM 2 1K 2
epoch 4 1K 4
cdev 2 1K 2
encap_export_host 8 1K 8
osd 3 1K 9
sctp_atky 7 1K 2490
vnodes 1 1K 6
NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1
DEVFS 9 1K 10
feeder 7 1K 7
tcpfunc 3 1K 3
loginclass 3 1K 6
soname 6 1K 15094
CAM dev queue 2 1K 2
CAM I/O Scheduler 1 1K 1
apmdev 1 1K 1
atkbddev 2 1K 2
CAM path 4 1K 1034
ktls 1 1K 1
pmchooks 1 1K 1
prison 4 1K 4
nexusdev 5 1K 5
sctp_athm 5 1K 2468
filecaps 5 1K 124
entropy 2 1K 45
sctp_vrf 1 1K 1
sctp_map 4 1K 44
vnet 1 1K 1
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_table 0 0K 0
pf_rule 0 0K 0
pf_altq 0 0K 0
pf_osfp 0 0K 0
pf_temp 0 0K 0
ath_hal 0 0K 0
madt_table 0 0K 2
athdev 0 0K 0
ata_pci 0 0K 0
ata_dma 0 0K 0
ata_generic 0 0K 0
amr 0 0K 0
scsi_da 0 0K 69
ata_da 0 0K 0
pvscsi 0 0K 0
smartpqi 0 0K 0
scsi_ch 0 0K 0
scsi_cd 0 0K 0
USBdev 0 0K 0
USB 0 0K 0
AHCI driver 0 0K 0
agp 0 0K 0
iavf 0 0K 0
ixl 0 0K 0
nvme_da 0 0K 0
acpipwr 0 0K 0
twsbuf 0 0K 0
twe_commands 0 0K 0
twa_commands 0 0K 0
tcp_log_dev 0 0K 4
midi buffers 0 0K 0
fpukern_ctx 0 0K 0
mixer 0 0K 0
xen_intr 0 0K 0
ac97 0 0K 0
xen_hvm 0 0K 0
legacydrv 0 0K 0
qpidrv 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
dmar_idpgtbl 0 0K 0
dmar_dom 0 0K 0
dmar_ctx 0 0K 0
dmar_dmamap 0 0K 0
hdaa 0 0K 0
acpi_perf 0 0K 0
acpicmbat 0 0K 0
isci 0 0K 0
bxe_ilt 0 0K 0
xenbus 0 0K 0
SIIS driver 0 0K 0
vm_fictitious 0 0K 0
CAM CCB 0 0K 100010
PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
osti_cacheable 0 0K 0
tempbuff 0 0K 0
tempbuff 0 0K 0
UMAHash 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
vm_pgdata 0 0K 0
jblocks 0 0K 0
savedino 0 0K 8752
sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0
sbdep 0 0K 1030
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 6647
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
xform 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 52
ip6_msource 0 0K 0
ip6_moptions 0 0K 2
in6_mfilter 0 0K 0
frag6 0 0K 0
tcplog 0 0K 0
lDevFlags * malloc 0 0K 0
LRO 0 0K 0
sctp_mcore 0 0K 0
sctp_socko 0 0K 1836
sctp_iter 0 0K 13
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 13
sctp_aadr 0 0K 0
sctp_stri 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0
ip_moptions 0 0K 43
in_mfilter 0 0K 1
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 12
tiDeviceHandle_t * malloc 0 0K 0
statfs 0 0K 8477
export_host 0 0K 0
cl_savebuf 0 0K 2
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
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
MPSSAS 0 0K 0
mbuf_tag 0 0K 171
accf 0 0K 0
pts 0 0K 0
iov 0 0K 27471
ioctlops 0 0K 1076
Witness 0 0K 0
stack 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
md_sectors 0 0K 0
sbuf 0 0K 288
md_disk 0 0K 0
compressor 0 0K 0
malodev 0 0K 0
SWAP 0 0K 0
LED 0 0K 0
sysctltmp 0 0K 774
sysctl 0 0K 1
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
ix 0 0K 0
ipsbuf 0 0K 0
iirbuf 0 0K 0
cache 0 0K 0
aacraid_buf 0 0K 0
prison_racct 0 0K 0
Fail Points 0 0K 0
sigio 0 0K 23
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
nvlist 0 0K 0
SCSI ENC 0 0K 0
SCSI sa 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
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 diroffdiroff 0 0K 0
NEWdirectio 0 0K 0
NEWNFSnode 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
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
msdosfs_fat 0 0K 0
msdosfs_mount 0 0K 0
msdosfs_node 0 0K 0
DEVFS4 0 0K 0
DEVFS2 0 0K 0
gntdev 0 0K 0
privcmd_dev 0 0K 0
evtchn_dev 0 0K 0
xenstore 0 0K 0
scsi_pass 0 0K 0
ciss_data 0 0K 0
xnb 0 0K 0
xbbd 0 0K 0
xbd 0 0K 0
Balloon 0 0K 0
sysmouse 0 0K 0
vtfont 0 0K 0
db> show ktr
No such command; use "help" to list available commands
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Apr 14, 2020, 8:41:14 AM4/14/20
to syzkaller-f...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 7ce2fd66 Re-organize the NFS file handle affinity code for..
git tree: freebsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11a8c9d0100000
dashboard link: https://syzkaller.appspot.com/bug?extid=dcf58d568fa4d35b9d89
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16dfe9d0100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1703f553e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+dcf58d...@syzkaller.appspotmail.com
panic: sbsndptr_noadv: sb_mb is NULL
cpuid = 0
time = 1586867804
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a68360
vpanic() at vpanic+0x1c7/frame 0xfffffe0025a683c0
panic() at panic+0x43/frame 0xfffffe0025a68420
sbsndptr_noadv() at sbsndptr_noadv+0xae/frame 0xfffffe0025a68460
rack_output() at rack_output+0x51f5/frame 0xfffffe0025a68700
tcp_usr_send() at tcp_usr_send+0x5c7/frame 0xfffffe0025a687e0
sosend_generic() at sosend_generic+0x8fd/frame 0xfffffe0025a688e0
sosend() at sosend+0xc6/frame 0xfffffe0025a68950
kern_sendit() at kern_sendit+0x33d/frame 0xfffffe0025a68a00
sendit() at sendit+0x224/frame 0xfffffe0025a68a60
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0025a68ac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe0025a68bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0025a68bf0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x41c41a, rsp = 0x7fffffffeac8, rbp = 0x7fffffffeb30 ---
KDB: enter: panic
[ thread pid 773 tid 100113 ]
rdx 0xffffffff818a90a3
rbx 0
rsp 0xfffffe0025a68340
rbp 0xfffffe0025a68360
rsi 0x1
rdi 0
ABI: FreeBSD ELF64
arguments: ./syz-executor130875507
(map 0xfffffe00257b1000)
(map.pmap 0xfffffe00257b10c0)
(pmap 0xfffffe00257b1120)
threads: 1
100113 Run CPU 0 syz-executor1308755
771 769 771 0 Ss pause 0xfffff8003b562ae8 csh
769 682 769 0 Ss select 0xfffff80003a33c40 sshd
741 1 741 0 Ss+ ttyin 0xfffff800033bf8b0 getty
740 1 740 0 Ss+ ttyin 0xfffff800033be0b0 getty
738 1 24 0 S+ piperd 0xfffff80003caa5f0 logger
737 736 24 0 S+ nanslp 0xffffffff8252c200 sleep
736 1 24 0 S+ wait 0xfffff8003b430000 sh
686 1 686 0 Ss nanslp 0xffffffff8252c200 cron
682 1 682 0 Ss select 0xfffff80003a36ac0 sshd
495 1 495 0 Ss select 0xfffff80003e02440 syslogd
424 1 424 0 Ss select 0xfffff80003a36a40 devd
423 1 423 65 Ss select 0xfffff80003d38f40 dhclient
338 1 338 0 Ss select 0xfffff80003a36340 dhclient
335 1 335 0 Ss select 0xfffff80003e023c0 dhclient
23 0 0 0 DL vlruwt 0xfffff800033ee520 [vnlru]
4 0 0 0 DL crypto_ 0xfffff800033eb030 [crypto returns 0]
100018 D - 0xfffff8000335e0c0 [thr_1]
100004 Run CPU 1 [idle: cpu1]
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239d9e98) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/rack/../../../netinet/tcp_stacks/rack.c:8438
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003b445208) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:965
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239d9eb8) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
vfscache 4 1025K 4
pcb 22 537K 76
inodedep 48 536K 71
tfo_ccache 1 128K 1
sem 4 106K 4
DEVFS1 101 101K 110
linker 243 92K 264
bus 964 78K 3344
hostcache 1 32K 1
shm 1 32K 1
umtx 252 32K 252
msg 4 30K 4
DEVFS3 120 30K 130
kdtrace 146 28K 1602
DEVFS_RULE 56 27K 56
gtaskqueue 18 26K 18
kbdmux 6 22K 6
vmem 3 21K 3
BPF 10 18K 10
pfs_vncache 1 8K 1
audit_evclass 232 8K 290
cred 21 6K 234
plimit 17 5K 322
ifnet 3 5K 3
lltable 11 4K 11
hhook 13 4K 13
ether_multi 40 4K 45
diradd 25 4K 36
pf_ifnet 5 3K 6
in6_multi 25 3K 25
kqueue 46 3K 776
pgrp 20 3K 31
uidinfo 3 3K 8
select 17 3K 17
Unitno 25 2K 37
sctp_ifa 5 1K 5
in_multi 2 1K 3
sctp_ifn 2 1K 2
igmp 2 1K 2
vnodes 1 1K 1
tcpfunc 3 1K 3
loginclass 3 1K 7
filecaps 4 1K 66
tun 3 1K 3
nexusdev 5 1K 5
entropy 2 1K 35
sctp_vrf 1 1K 1
tcp_log_dev 0 0K 0
freeblks 0 0K 25
freefrag 0 0K 7
allocindir 0 0K 0
ip6_msource 0 0K 0
ip6_moptions 0 0K 0
sctp_iter 0 0K 3
sctp_mvrf 0 0K 0
sctp_timw 0 0K 0
sctp_atky 0 0K 0
sctp_atcl 0 0K 0
sctp_a_it 0 0K 3
sctp_aadr 0 0K 0
sctp_stro 0 0K 0
sctp_stri 0 0K 0
sctp_map 0 0K 0
in_mfilter 0 0K 0
export_host 0 0K 0
cl_savebuf 0 0K 3
ioctlops 0 0K 86
HEAD commit: 7ce2fd66 Re-organize the NFS file handle affinity code for..
git tree: freebsd
dashboard link: https://syzkaller.appspot.com/bug?extid=dcf58d568fa4d35b9d89
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16dfe9d0100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1703f553e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+dcf58d...@syzkaller.appspotmail.com
panic: sbsndptr_noadv: sb_mb is NULL
cpuid = 0
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a68360
vpanic() at vpanic+0x1c7/frame 0xfffffe0025a683c0
panic() at panic+0x43/frame 0xfffffe0025a68420
sbsndptr_noadv() at sbsndptr_noadv+0xae/frame 0xfffffe0025a68460
rack_output() at rack_output+0x51f5/frame 0xfffffe0025a68700
tcp_usr_send() at tcp_usr_send+0x5c7/frame 0xfffffe0025a687e0
sosend_generic() at sosend_generic+0x8fd/frame 0xfffffe0025a688e0
sosend() at sosend+0xc6/frame 0xfffffe0025a68950
kern_sendit() at kern_sendit+0x33d/frame 0xfffffe0025a68a00
sendit() at sendit+0x224/frame 0xfffffe0025a68a60
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0025a68ac0
amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe0025a68bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0025a68bf0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x41c41a, rsp = 0x7fffffffeac8, rbp = 0x7fffffffeb30 ---
KDB: enter: panic
[ thread pid 773 tid 100113 ]
Stopped at kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b ll+0x1a
es 0x3b ll+0x1a
fs 0x13
gs 0x1b
ss 0x28 ll+0x7
rax 0x12
rcx 0x80 ll+0x5f
db>
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs 0x20
ds 0x3b ll+0x1a
es 0x3b ll+0x1a
fs 0x13
gs 0x1b
ss 0x28 ll+0x7
rax 0x12
rdx 0xffffffff818a90a3
rbx 0
rsp 0xfffffe0025a68340
rbp 0xfffffe0025a68360
rsi 0x1
rdi 0
r8 0
r9 0xffffffff
r10 0
r11 0xfffffe0023b90c10
r9 0xffffffff
r10 0
r12 0xffffffff82068e80 ddb_dbbe
r13 0
r14 0xffffffff81949084
r15 0xffffffff81949084
rip 0xffffffff810ad7c7 kdb_enter+0x67
rflags 0x86 ll+0x65
kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db> show proc
Process 773 (syz-executor1308755) at 0xfffff8003b562520:
r13 0
r14 0xffffffff81949084
r15 0xffffffff81949084
rip 0xffffffff810ad7c7 kdb_enter+0x67
rflags 0x86 ll+0x65
kdb_enter+0x67: movq $0,0x14aa0a6(%rip)
db> show proc
state: NORMAL
uid: 0 gids: 0, 0, 5
parent: pid 771 at 0xfffff8003b562a40
uid: 0 gids: 0, 0, 5
ABI: FreeBSD ELF64
arguments: ./syz-executor130875507
reaper: 0xfffff80003310000 reapsubtree: 1
sigparent: 20
vmspace: 0xfffffe00257b1000
sigparent: 20
(map 0xfffffe00257b1000)
(map.pmap 0xfffffe00257b10c0)
(pmap 0xfffffe00257b1120)
threads: 1
100113 Run CPU 0 syz-executor1308755
db> ps
pid ppid pgrp uid state wmesg wchan cmd
773 771 771 0 R CPU 0 syz-executor1308755
pid ppid pgrp uid state wmesg wchan cmd
771 769 771 0 Ss pause 0xfffff8003b562ae8 csh
769 682 769 0 Ss select 0xfffff80003a33c40 sshd
748 1 748 0 Ss+ ttyin 0xfffff8000381a8b0 getty
747 1 747 0 Ss+ ttyin 0xfffff80003b708b0 getty
746 1 746 0 Ss+ ttyin 0xfffff80003b730b0 getty
745 1 745 0 Ss+ ttyin 0xfffff80003b738b0 getty
744 1 744 0 Ss+ ttyin 0xfffff800033bc0b0 getty
743 1 743 0 Ss+ ttyin 0xfffff800033bc8b0 getty
742 1 742 0 Ss+ ttyin 0xfffff800033bf0b0 getty
747 1 747 0 Ss+ ttyin 0xfffff80003b708b0 getty
746 1 746 0 Ss+ ttyin 0xfffff80003b730b0 getty
745 1 745 0 Ss+ ttyin 0xfffff80003b738b0 getty
744 1 744 0 Ss+ ttyin 0xfffff800033bc0b0 getty
743 1 743 0 Ss+ ttyin 0xfffff800033bc8b0 getty
741 1 741 0 Ss+ ttyin 0xfffff800033bf8b0 getty
740 1 740 0 Ss+ ttyin 0xfffff800033be0b0 getty
738 1 24 0 S+ piperd 0xfffff80003caa5f0 logger
737 736 24 0 S+ nanslp 0xffffffff8252c200 sleep
736 1 24 0 S+ wait 0xfffff8003b430000 sh
686 1 686 0 Ss nanslp 0xffffffff8252c200 cron
682 1 682 0 Ss select 0xfffff80003a36ac0 sshd
495 1 495 0 Ss select 0xfffff80003e02440 syslogd
424 1 424 0 Ss select 0xfffff80003a36a40 devd
423 1 423 65 Ss select 0xfffff80003d38f40 dhclient
338 1 338 0 Ss select 0xfffff80003a36340 dhclient
335 1 335 0 Ss select 0xfffff80003e023c0 dhclient
23 0 0 0 DL vlruwt 0xfffff800033ee520 [vnlru]
22 0 0 0 DL syncer 0xffffffff82618098 [syncer]
21 0 0 0 DL (threaded) [bufdaemon]
100069 D qsleep 0xffffffff826173d8 [bufdaemon]
100076 D - 0xffffffff8200aa00 [bufspacedaemon-0]
100087 D sdflush 0xfffff800033878e8 [/ worker]
21 0 0 0 DL (threaded) [bufdaemon]
100069 D qsleep 0xffffffff826173d8 [bufdaemon]
100076 D - 0xffffffff8200aa00 [bufspacedaemon-0]
20 0 0 0 DL psleep 0xffffffff8263e348 [vmdaemon]
19 0 0 0 DL (threaded) [pagedaemon]
100067 D psleep 0xffffffff82632918 [dom0]
100074 D launds 0xffffffff82632924 [laundry: dom0]
100075 D umarcl 0xffffffff8154adf0 [uma]
18 0 0 0 DL - 0xffffffff8235fe20 [rand_harvestq]
17 0 0 0 DL pftm 0xffffffff82bb13a0 [pf purge]
19 0 0 0 DL (threaded) [pagedaemon]
100067 D psleep 0xffffffff82632918 [dom0]
100074 D launds 0xffffffff82632924 [laundry: dom0]
100075 D umarcl 0xffffffff8154adf0 [uma]
18 0 0 0 DL - 0xffffffff8235fe20 [rand_harvestq]
16 0 0 0 DL waiting 0xffffffff8261a810 [sctp_iterator]
15 0 0 0 DL - 0xffffffff82616a2c [soaiod4]
9 0 0 0 DL - 0xffffffff82616a2c [soaiod3]
8 0 0 0 DL - 0xffffffff82616a2c [soaiod2]
7 0 0 0 DL - 0xffffffff82616a2c [soaiod1]
6 0 0 0 DL (threaded) [cam]
100033 D - 0xffffffff82237b40 [doneq0]
100066 D - 0xffffffff82237a10 [scanner]
5 0 0 0 DL crypto_ 0xfffff800033eb090 [crypto returns 1]
15 0 0 0 DL - 0xffffffff82616a2c [soaiod4]
9 0 0 0 DL - 0xffffffff82616a2c [soaiod3]
8 0 0 0 DL - 0xffffffff82616a2c [soaiod2]
7 0 0 0 DL - 0xffffffff82616a2c [soaiod1]
6 0 0 0 DL (threaded) [cam]
100033 D - 0xffffffff82237b40 [doneq0]
100066 D - 0xffffffff82237a10 [scanner]
4 0 0 0 DL crypto_ 0xfffff800033eb030 [crypto returns 0]
3 0 0 0 DL crypto_ 0xffffffff82630040 [crypto]
14 0 0 0 DL seqstat 0xfffff80003388888 [sequencer 00]
13 0 0 0 DL (threaded) [geom]
100024 D - 0xffffffff8250b180 [g_event]
100025 D - 0xffffffff8250b188 [g_up]
100026 D - 0xffffffff8250b190 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100017 D - 0xfffff8000335e080 [thr_0]
14 0 0 0 DL seqstat 0xfffff80003388888 [sequencer 00]
13 0 0 0 DL (threaded) [geom]
100024 D - 0xffffffff8250b180 [g_event]
100025 D - 0xffffffff8250b188 [g_up]
100026 D - 0xffffffff8250b190 [g_down]
2 0 0 0 DL (threaded) [KTLS]
100018 D - 0xfffff8000335e0c0 [thr_1]
1 0 1 0 SLs wait 0xfffff80003310000 [init]
10 0 0 0 DL audit_w 0xffffffff82630518 [audit]
0 0 0 0 DLs (threaded) [kernel]
100000 D swapin 0xffffffff8250b710 [swapper]
100005 D - 0xfffff80003215800 [if_config_tqg_0]
100006 D - 0xfffff80003215600 [softirq_0]
100007 D - 0xfffff80003215400 [softirq_1]
100008 D - 0xfffff80003215200 [if_io_tqg_0]
100009 D - 0xfffff80003215000 [if_io_tqg_1]
100011 D - 0xfffff80003342000 [in6m_free taskq]
100012 D - 0xfffff80003343e00 [thread taskq]
100014 D - 0xfffff80003343c00 [kqueue_ctx taskq]
100015 D - 0xfffff80003343b00 [aiod_kick taskq]
100023 D - 0xfffff80003343900 [firmware taskq]
100028 D - 0xfffff80003340e00 [crypto_0]
100029 D - 0xfffff80003340e00 [crypto_1]
100043 D - 0xfffff80003340500 [vtnet0 rxq 0]
100044 D - 0xfffff80003340400 [vtnet0 txq 0]
100045 D - 0xfffff80003340300 [vtnet0 rxq 1]
100046 D - 0xfffff80003340200 [vtnet0 txq 1]
100048 D vtbslp 0xfffff80003519580 [virtio_balloon]
100052 D - 0xfffff80003340100 [mca taskq]
100057 D - 0xffffffff81cec6b0 [deadlkres]
10 0 0 0 DL audit_w 0xffffffff82630518 [audit]
0 0 0 0 DLs (threaded) [kernel]
100000 D swapin 0xffffffff8250b710 [swapper]
100005 D - 0xfffff80003215800 [if_config_tqg_0]
100006 D - 0xfffff80003215600 [softirq_0]
100007 D - 0xfffff80003215400 [softirq_1]
100008 D - 0xfffff80003215200 [if_io_tqg_0]
100009 D - 0xfffff80003215000 [if_io_tqg_1]
100011 D - 0xfffff80003342000 [in6m_free taskq]
100012 D - 0xfffff80003343e00 [thread taskq]
100014 D - 0xfffff80003343c00 [kqueue_ctx taskq]
100015 D - 0xfffff80003343b00 [aiod_kick taskq]
100023 D - 0xfffff80003343900 [firmware taskq]
100028 D - 0xfffff80003340e00 [crypto_0]
100029 D - 0xfffff80003340e00 [crypto_1]
100043 D - 0xfffff80003340500 [vtnet0 rxq 0]
100044 D - 0xfffff80003340400 [vtnet0 txq 0]
100045 D - 0xfffff80003340300 [vtnet0 rxq 1]
100046 D - 0xfffff80003340200 [vtnet0 txq 1]
100048 D vtbslp 0xfffff80003519580 [virtio_balloon]
100052 D - 0xfffff80003340100 [mca taskq]
100062 D - 0xfffff80003340900 [acpi_task_0]
100063 D - 0xfffff80003340900 [acpi_task_1]
100064 D - 0xfffff80003340900 [acpi_task_2]
100065 D - 0xfffff80003340800 [CAM taskq]
db> show all locks
Process 773 (syz-executor1308755) thread 0xfffffe0023b90700 (100113)
100063 D - 0xfffff80003340900 [acpi_task_1]
100064 D - 0xfffff80003340900 [acpi_task_2]
100065 D - 0xfffff80003340800 [CAM taskq]
db> show all locks
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe00239d9e98) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/rack/../../../netinet/tcp_stacks/rack.c:8438
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003b445208) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:965
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00239d9eb8) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:419
db> show malloc
Type InUse MemUse Requests
pf_hash 5 11524K 5
devbuf 4213 4851K 4238
Type InUse MemUse Requests
pf_hash 5 11524K 5
tcp_hpts 5 3201K 5
vtbuf 24 1968K 46
sysctloid 28437 1659K 28501
kobj 332 1328K 488
newblk 511 1152K 529
vtbuf 24 1968K 46
sysctloid 28437 1659K 28501
kobj 332 1328K 488
vfscache 4 1025K 4
pcb 22 537K 76
inodedep 48 536K 71
ufs_quota 1 512K 1
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 388K 4
subproc 113 218K 841
vfs_hash 1 512K 1
callout 2 512K 2
intr 4 388K 4
acpica 1674 185K 52709
vnet_data 1 168K 1
pagedep 14 132K 18
vnet_data 1 168K 1
tfo_ccache 1 128K 1
sem 4 106K 4
DEVFS1 101 101K 110
linker 243 92K 264
bus 964 78K 3344
mtx_pool 2 72K 2
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 496 62K 496
temp 18 33K 1537
syncache 1 68K 1
acpitask 1 64K 1
ddb_capture 1 64K 1
module 496 62K 496
hostcache 1 32K 1
shm 1 32K 1
umtx 252 32K 252
msg 4 30K 4
DEVFS3 120 30K 130
kdtrace 146 28K 1602
DEVFS_RULE 56 27K 56
gtaskqueue 18 26K 18
kbdmux 6 22K 6
vmem 3 21K 3
BPF 10 18K 10
ufs_mount 3 17K 4
proc 3 17K 3
tty 16 16K 16
tidhash 1 16K 1
ithread 98 16K 98
proc 3 17K 3
tty 16 16K 16
tidhash 1 16K 1
ithread 98 16K 98
bus-sc 30 14K 1431
KTRACE 100 13K 100
ifaddr 30 12K 32
KTRACE 100 13K 100
kenv 95 12K 99
eventhandler 132 12K 132
eventhandler 132 12K 132
pfs_nodes 20 10K 20
GEOM 60 10K 487
rman 82 10K 423
bmsafemap 4 9K 41
GEOM 60 10K 487
rman 82 10K 423
UART 12 9K 12
devstat 4 9K 4
rpc 2 8K 2
shmfd 1 8K 1
devstat 4 9K 4
rpc 2 8K 2
pfs_vncache 1 8K 1
audit_evclass 232 8K 290
CAM DEV 3 6K 510
vt 11 6K 11
cred 21 6K 234
sglist 5 6K 5
CAM queue 5 6K 1528
routetbl 28 5K 32
CAM queue 5 6K 1528
taskqueue 45 5K 45
ufs_dirhash 24 5K 24
dirrem 17 5K 28
ufs_dirhash 24 5K 24
plimit 17 5K 322
ifnet 3 5K 3
UMA 250 5K 250
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4
filedesc 1 4K 1
memdesc 1 4K 1
MCA 32 4K 32
evdev 4 4K 4
lltable 11 4K 11
hhook 13 4K 13
ether_multi 40 4K 45
diradd 25 4K 36
pf_ifnet 5 3K 6
in6_multi 25 3K 25
kqueue 46 3K 776
acpisem 22 3K 22
terminal 11 3K 11
session 20 3K 31
terminal 11 3K 11
pgrp 20 3K 31
uidinfo 3 3K 8
select 17 3K 17
local_apic 1 2K 1
io_apic 1 2K 1
ipsec-saq 2 2K 2
proc-args 39 2K 472
io_apic 1 2K 1
ipsec-saq 2 2K 2
CAM XPT 22 2K 543
lockf 15 2K 22
Unitno 25 2K 37
acpidev 20 2K 20
msi 9 2K 9
softdep 1 1K 1
msi 9 2K 9
ipsecpolicy 1 1K 1
sahead 1 1K 1
secasvar 1 1K 1
clone 8 1K 8
vnodemarker 2 1K 6
sahead 1 1K 1
secasvar 1 1K 1
clone 8 1K 8
NFSD session 1 1K 1
CAM periph 4 1K 271
indirdep 3 1K 3
CAM periph 4 1K 271
nhops 6 1K 6
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 86
pci_link 10 1K 10
ip6ndp 4 1K 5
toponodes 6 1K 6
isadev 6 1K 6
mount 16 1K 86
pci_link 10 1K 10
sctp_ifa 5 1K 5
crypto 3 1K 3
newdirblk 4 1K 8
mkdir 4 1K 16
newdirblk 4 1K 8
in_multi 2 1K 3
pfil 4 1K 4
chacha20random 1 1K 1
CAM SIM 2 1K 2
epoch 4 1K 4
cdev 2 1K 2
encap_export_host 8 1K 8
osd 3 1K 9
mld 2 1K 2
chacha20random 1 1K 1
CAM SIM 2 1K 2
epoch 4 1K 4
cdev 2 1K 2
encap_export_host 8 1K 8
osd 3 1K 9
sctp_ifn 2 1K 2
igmp 2 1K 2
vnodes 1 1K 1
NFSD lckfile 1 1K 1
NFSD V4client 1 1K 1
DEVFS 9 1K 10
feeder 7 1K 7
inpcbpolicy 7 1K 132
NFSD V4client 1 1K 1
DEVFS 9 1K 10
feeder 7 1K 7
tcpfunc 3 1K 3
loginclass 3 1K 7
CAM dev queue 2 1K 2
CAM I/O Scheduler 1 1K 1
apmdev 1 1K 1
atkbddev 2 1K 2
CAM path 4 1K 1034
soname 5 1K 5790
CAM I/O Scheduler 1 1K 1
apmdev 1 1K 1
atkbddev 2 1K 2
CAM path 4 1K 1034
ktls 1 1K 1
pmchooks 1 1K 1
prison 4 1K 4
DEVFSP 2 1K 2
pmchooks 1 1K 1
prison 4 1K 4
filecaps 4 1K 66
tun 3 1K 3
nexusdev 5 1K 5
entropy 2 1K 35
sctp_vrf 1 1K 1
vnet 1 1K 1
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
acpiintr 1 1K 1
pmc 1 1K 1
cpus 2 1K 2
vnet_data_free 1 1K 1
Per-cpu 1 1K 1
midi buffers 0 0K 0
fpukern_ctx 0 0K 0
mixer 0 0K 0
xen_intr 0 0K 0
ac97 0 0K 0
xen_hvm 0 0K 0
legacydrv 0 0K 0
qpidrv 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
dmar_idpgtbl 0 0K 0
dmar_dom 0 0K 0
dmar_ctx 0 0K 0
dmar_dmamap 0 0K 0
hdaa 0 0K 0
acpi_perf 0 0K 0
acpicmbat 0 0K 0
isci 0 0K 0
bxe_ilt 0 0K 0
xenbus 0 0K 0
SIIS driver 0 0K 0
vm_fictitious 0 0K 0
CAM CCB 0 0K 1788
fpukern_ctx 0 0K 0
mixer 0 0K 0
xen_intr 0 0K 0
ac97 0 0K 0
xen_hvm 0 0K 0
legacydrv 0 0K 0
qpidrv 0 0K 0
hdacc 0 0K 0
hdac 0 0K 0
dmar_idpgtbl 0 0K 0
dmar_dom 0 0K 0
dmar_ctx 0 0K 0
dmar_dmamap 0 0K 0
hdaa 0 0K 0
acpi_perf 0 0K 0
acpicmbat 0 0K 0
isci 0 0K 0
bxe_ilt 0 0K 0
xenbus 0 0K 0
SIIS driver 0 0K 0
vm_fictitious 0 0K 0
PUC 0 0K 0
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
osti_cacheable 0 0K 0
tempbuff 0 0K 0
tempbuff 0 0K 0
UMAHash 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
vm_pgdata 0 0K 0
jblocks 0 0K 0
savedino 0 0K 12
ppbusdev 0 0K 0
agtiapi_MemAlloc malloc 0 0K 0
osti_cacheable 0 0K 0
tempbuff 0 0K 0
tempbuff 0 0K 0
UMAHash 0 0K 0
ag_tgt_map_t malloc 0 0K 0
ag_slr_map_t malloc 0 0K 0
vm_pgdata 0 0K 0
jblocks 0 0K 0
sentinel 0 0K 0
jfsync 0 0K 0
jtrunc 0 0K 0
sbdep 0 0K 2
jfsync 0 0K 0
jtrunc 0 0K 0
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
freefile 0 0K 9
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
freeblks 0 0K 25
freefrag 0 0K 7
allocindir 0 0K 0
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
xform 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 3
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
xform 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
ip6_msource 0 0K 0
ip6_moptions 0 0K 0
in6_mfilter 0 0K 0
frag6 0 0K 0
tcplog 0 0K 0
lDevFlags * malloc 0 0K 0
LRO 0 0K 0
sctp_mcore 0 0K 0
sctp_socko 0 0K 0
frag6 0 0K 0
tcplog 0 0K 0
lDevFlags * malloc 0 0K 0
LRO 0 0K 0
sctp_mcore 0 0K 0
sctp_iter 0 0K 3
sctp_mvrf 0 0K 0
sctp_timw 0 0K 0
sctp_cpal 0 0K 0
sctp_cmsg 0 0K 0
sctp_stre 0 0K 0
sctp_athi 0 0K 0
sctp_athm 0 0K 0
sctp_cmsg 0 0K 0
sctp_stre 0 0K 0
sctp_athi 0 0K 0
sctp_atky 0 0K 0
sctp_atcl 0 0K 0
sctp_a_it 0 0K 3
sctp_aadr 0 0K 0
sctp_stro 0 0K 0
sctp_stri 0 0K 0
sctp_map 0 0K 0
newreno data 0 0K 0
ip_msource 0 0K 0
ip_moptions 0 0K 0
ip_msource 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
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
tiDeviceHandle_t * malloc 0 0K 0
statfs 0 0K 195
export_host 0 0K 0
cl_savebuf 0 0K 3
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
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
MPSSAS 0 0K 0
mbuf_tag 0 0K 25
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
biobuf 0 0K 0
aios 0 0K 0
lio 0 0K 0
acl 0 0K 0
MPSSAS 0 0K 0
accf 0 0K 0
pts 0 0K 0
iov 0 0K 12985
pts 0 0K 0
ioctlops 0 0K 86
Witness 0 0K 0
stack 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
md_sectors 0 0K 0
sbuf 0 0K 288
md_disk 0 0K 0
compressor 0 0K 0
malodev 0 0K 0
SWAP 0 0K 0
LED 0 0K 0
sysctltmp 0 0K 574
stack 0 0K 0
mps 0 0K 0
mpr_user 0 0K 0
MPRSAS 0 0K 0
mpr 0 0K 0
mfibuf 0 0K 0
md_sectors 0 0K 0
sbuf 0 0K 288
md_disk 0 0K 0
compressor 0 0K 0
malodev 0 0K 0
SWAP 0 0K 0
LED 0 0K 0
sysctl 0 0K 1
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
ix 0 0K 0
ipsbuf 0 0K 0
iirbuf 0 0K 0
cache 0 0K 0
aacraid_buf 0 0K 0
kcovinfo 0 0K 0
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
ix 0 0K 0
ipsbuf 0 0K 0
iirbuf 0 0K 0
cache 0 0K 0
aacraid_buf 0 0K 0
prison_racct 0 0K 0
Fail Points 0 0K 0
sigio 0 0K 1
Fail Points 0 0K 0
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