panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr ADDR+24 ADDR!=ADDR (2)
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syzbot
Sep 22, 2019, 1:57:09 PM9/22/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 2f346d2b Fix ampintc_cpuinit() prototype.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=115aa675600000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=7f790d25478dfb11f18c
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+7f790d...@syzkaller.appspotmail.com
login: panic: pool_cache_item_magic_check: mbufpl cpu free list modified:
item addr 0xfffffd806f2b8400+24 0xfdf3469d2f7d0bfd!=0x20cbb1d4bf89efd
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*511182 40940 0 0 0x4000000 1 syz-executor.0
235738 25103 0 0x14000 0x200 0 softnet
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174 m_get
sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174
sys/kern/uipc_mbuf.c:667
ether_resolve(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230,ffff8000221a30a8)
at
ether_resolve+0x49f sys/net/if_ethersubr.c:224
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 ether_encap sys/net/if_ethersubr.c:307 [inline]
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 sys/net/if_ethersubr.c:336
ip_output(fffffd80674a4900,0,fffffd806f6d6818,20,0,fffffd806f6d67a8) at
ip_output+0x125d sys/netinet/ip_output.c:511
rip_output(fffffd80674a4900,fffffd807ebaf488,ffff8000221a32b8,ffff800021152000)
at
rip_output+0x252 sys/netinet/raw_ip.c:289
rip_usrreq(fffffd807ebaf488,9,fffffd80674a4900,0,0,ffff800020ac09f0) at
rip_usrreq+0x46a sys/netinet/raw_ip.c:538
sosend(fffffd807ebaf488,0,ffff8000221a3420,0,0,0) at sosend+0x645
sys/kern/uipc_socket.c:524
sendit(ffff800020ac09f0,6,ffff8000221a3580,0,ffff8000221a3670) at
sendit+0x52b sys/kern/uipc_syscalls.c:662
sys_sendmsg(ffff800020ac09f0,ffff8000221a3628,ffff8000221a3670) at
sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
syscall(ffff8000221a36f0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff8000221a36f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
end trace frame: 0xffff8000221a3770, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr
0xfffffd806f2b8400+24 0xfdf3469d2f7d0bfd!=0x20cbb1d4bf89efd
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174 m_get
sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174
sys/kern/uipc_mbuf.c:667
ether_resolve(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230,ffff8000221a30a8)
at
ether_resolve+0x49f sys/net/if_ethersubr.c:224
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 ether_encap sys/net/if_ethersubr.c:307 [inline]
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 sys/net/if_ethersubr.c:336
ip_output(fffffd80674a4900,0,fffffd806f6d6818,20,0,fffffd806f6d67a8) at
ip_output+0x125d sys/netinet/ip_output.c:511
rip_output(fffffd80674a4900,fffffd807ebaf488,ffff8000221a32b8,ffff800021152000)
at
rip_output+0x252 sys/netinet/raw_ip.c:289
rip_usrreq(fffffd807ebaf488,9,fffffd80674a4900,0,0,ffff800020ac09f0) at
rip_usrreq+0x46a sys/netinet/raw_ip.c:538
sosend(fffffd807ebaf488,0,ffff8000221a3420,0,0,0) at sosend+0x645
sys/kern/uipc_socket.c:524
sendit(ffff800020ac09f0,6,ffff8000221a3580,0,ffff8000221a3670) at
sendit+0x52b sys/kern/uipc_syscalls.c:662
sys_sendmsg(ffff800020ac09f0,ffff8000221a3628,ffff8000221a3670) at
sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
syscall(ffff8000221a36f0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff8000221a36f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffffd2,0,3,837a1f5b280) at Xsyscall+0x128
end of kernel
end trace frame: 0x83a53b75d00, count: -15
ddb{1}> show registers
rdi 0xffffffff8215e1e7 db_enter+0x17
rsi 0x4493 __ALIGN_SIZE+0x3493
rbp 0xffff8000221a2d80
rbx 0xffff8000221a2e30
rdx 0x4494 __ALIGN_SIZE+0x3494
rcx 0xffff800021152000
rax 0xffff800021152000
r8 0xffffffff810b3fbf kprintf+0x16f
r9 0x1
r10 0x25
r11 0x7f0f14203a15d7e
r12 0x3000000008
r13 0xffff8000221a2d90
r14 0x100
r15 0x1
rip 0xffffffff8215e1e8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000221a2d70
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.0) pid=511182 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=78, usrpri=78, nice=20
forw=0xffffffffffffffff, list=0xffff800020ab13d8,0xffffffff8265a6f8
process=0xffff800020adc000 user=0xffff80002219e000,
vmspace=0xfffffd807f00b5c0
estcpu=28, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
40940 246289 39925 0 2 0 syz-executor.0
40940 38780 39925 0 3 0x4000080 kqread syz-executor.0
40940 300857 39925 0 3 0x4000080 select syz-executor.0
40940 44043 39925 0 3 0x4000080 fsleep syz-executor.0
*40940 511182 39925 0 7 0x4000000 syz-executor.0
39925 219108 2116 0 3 0x82 nanosleep syz-executor.0
71362 239934 1 0 3 0x100083 ttyin getty
91624 218505 2116 0 3 0x82 piperd syz-executor.1
53447 513449 0 0 3 0x14200 acct acct
64043 77361 0 0 3 0x14200 bored sosplice
2116 381914 74544 0 3 0x82 thrsleep syz-fuzzer
2116 279691 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 492147 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 264353 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 454115 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 316876 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 140053 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 213731 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 350773 74544 0 3 0x4000082 kqread syz-fuzzer
2116 323301 74544 0 3 0x4000082 thrsleep syz-fuzzer
74544 51095 19730 0 3 0x10008a pause ksh
19730 267327 28264 0 3 0x92 select sshd
28264 371160 1 0 3 0x80 select sshd
98812 424827 55580 74 3 0x100092 bpf pflogd
55580 272397 1 0 3 0x80 netio pflogd
69042 493888 34547 73 3 0x100090 kqread syslogd
34547 146301 1 0 3 0x100082 netio syslogd
77273 95796 1 77 3 0x100090 poll dhclient
62173 348841 1 0 3 0x80 poll dhclient
81474 238373 0 0 3 0x14200 pgzero zerothread
39504 473075 0 0 3 0x14200 aiodoned aiodoned
66101 345052 0 0 3 0x14200 syncer update
8052 163538 0 0 3 0x14200 cleaner cleaner
67631 44027 0 0 3 0x14200 reaper reaper
19551 113205 0 0 3 0x14200 pgdaemon pagedaemon
5048 367291 0 0 3 0x14200 bored crynlk
55710 355625 0 0 3 0x14200 bored crypto
91348 313137 0 0 3 0x40014200 acpi0 acpi0
87113 392758 0 0 3 0x40014200 idle1
25103 235738 0 0 7 0x14200 softnet
7814 75269 0 0 3 0x14200 bored systqmp
80369 182155 0 0 3 0x14200 bored systq
20567 365312 0 0 3 0x40014200 bored softclock
80730 422546 0 0 3 0x40014200 idle0
4583 87431 0 0 3 0x14200 bored smr
1 406357 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex
/syzkaller/managers/multicore/kernel/sys/kern/kern_timeout.c:94 r = 0
(0xffffffff824b8230)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 timeout_del+0x2d sys/kern/kern_timeout.c:364
#4 vio_txeof+0x1dd sys/dev/pv/if_vio.c:1158
#5 vio_start+0x3e sys/dev/pv/if_vio.c:724
#6 if_qstart_compat+0x36 sys/net/if.c:687
#7 ifq_serialize+0x173 sys/net/ifq.c:108
#8 taskq_thread+0x9c sys/kern/kern_task.c:368
#9 proc_trampoline+0x1c
Process 40940 (syz-executor.0) thread 0xffff800020ac09f0 (511182)
exclusive rwlock netlock r = 0 (0xffffffff824b35b8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 solock+0x5a sys/kern/uipc_socket2.c:282
#2 sosend+0x51b sys/kern/uipc_socket.c:512
#3 sendit+0x52b sys/kern/uipc_syscalls.c:662
#4 sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6 Xsyscall+0x128
Process 25103 (softnet) thread 0xffff800020a10000 (235738)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82628d10)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 if_qstart_compat+0x1a sys/net/if.c:685
#2 ifq_serialize+0x173 sys/net/ifq.c:108
#3 taskq_thread+0x9c sys/kern/kern_task.c:368
#4 proc_trampoline+0x1c
shared rwlock softnet r = 0 (0xffff8000000230e0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 taskq_thread+0x8f sys/kern/kern_task.c:367
#2 proc_trampoline+0x1c
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9600 6468K 7460K 78643K 28833 0 0
pcb 13 11K 12K 78643K 945 0 0
rtable 125 14K 14K 78643K 5368 0 0
ifaddr 90 24K 28K 78643K 1297 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1912 0 0
iov 0 0K 24K 78643K 874 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1214 76K 77K 78643K 9836 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 9K 78643K 161 0 0
VM map 2 1K 1K 78643K 16 0 0
sem 12 0K 1K 78643K 1275 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 5 13K 25K 78643K 12789 0 0
sigio 0 0K 0K 78643K 151 0 0
proc 61 63K 95K 78643K 2573 0 0
subproc 32 2K 2K 78643K 663 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 653 0 0
in_multi 35 2K 2K 78643K 2006 0 0
ether_multi 1 0K 0K 78643K 43 0 0
mrt 9 0K 0K 78643K 68 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 132 583K 583K 78643K 132 0 0
exec 0 0K 1K 78643K 1204 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 162 25K 34K 78643K 37143 0 0
UVM aobj 130 9K 9K 78643K 133 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 1K 78643K 907 0 0
NDP 21 0K 1K 78643K 593 0 0
temp 237 3557K 3659K 78643K 132394 0 0
kqueue 0 0K 0K 78643K 295 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 130 0 125 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 647 0 645 1 0 1 1 0
8 0
rtentry 112 1465 0 1421 2 0 2 2 0
8 0
unpcb 120 3820 0 3802 8 7 1 2 0
8 0
syncache 264 32 0 32 9 9 0 1 0
8 0
sackhl 24 1 0 1 1 1 0 1 0
8 0
tcpqe 32 178 0 178 14 14 0 1 0
8 0
tcpcb 544 2728 0 2724 7 6 1 3 0
8 0
inpcb 280 17755 0 17746 51 48 3 13 0
8 2
rttmr 72 10 0 9 6 5 1 1 0
8 0
nd6 48 316 0 312 2 1 1 1 0
8 0
pkpcb 40 22 0 22 7 7 0 1 0
8 0
swfcl 56 8 0 0 1 0 1 1 0
8 0
ppxss 1128 178 0 177 4 3 1 1 0
8 0
pffrag 232 2829 0 2828 24 23 1 20 0
482 0
pffrnode 88 2398 0 2397 5 4 1 1 0
8 0
pffrent 40 5235 0 5234 8 7 1 4 0
8 0
pfosfp 40 846 0 423 5 0 5 5 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
pfstitem 24 395 0 345 1 0 1 1 0
8 0
pfstkey 112 396 0 346 2 0 2 2 0
8 0
pfstate 328 396 0 346 9 4 5 5 0
8 0
pfrule 1360 21 0 16 2 1 1 2 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 8663 0 8396 44 27 17 20 0
8 0
art_table 32 8664 0 8396 4 1 3 3 0
8 0
art_node 16 1454 0 1414 1 0 1 1 0
8 0
sysvmsgpl 40 16 0 8 1 0 1 1 0
8 0
semapl 112 1263 0 1253 1 0 1 1 0
8 0
shmpl 112 131 0 3 4 0 4 4 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 21606 0 20177 47 0 47 47 0
8 0
ffsino 272 21606 0 20177 97 1 96 96 0
8 0
nchpl 144 39112 0 38628 60 39 21 60 0
8 0
uvmvnodes 72 6919 0 0 126 0 126 126 0
8 0
vnodes 208 6919 0 0 365 0 365 365 0
8 0
namei 1024 120072 0 120072 3 2 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
vmpool 552 14 0 14 6 6 0 1 0
8 0
scsiplug 64 116 0 116 8 8 0 1 0
8 0
scxspl 192 111838 0 111838 35 34 1 7 0
8 1
plimitpl 152 614 0 606 1 0 1 1 0
8 0
sigapl 432 12887 0 12872 4 2 2 3 0
8 0
futexpl 56 177462 0 177461 1 0 1 1 0
8 0
knotepl 112 2600 0 2581 8 7 1 3 0
8 0
kqueuepl 104 2704 0 2700 4 3 1 2 0
8 0
pipepl 112 4072 0 4053 13 11 2 2 0
8 0
fdescpl 488 12888 0 12872 3 0 3 3 0
8 0
filepl 152 77215 0 77111 51 45 6 14 0
8 1
lockfpl 104 6708 0 6707 1 0 1 1 0
8 0
lockfspl 48 2409 0 2408 1 0 1 1 0
8 0
sessionpl 112 63 0 52 1 0 1 1 0
8 0
pgrppl 48 1573 0 1562 1 0 1 1 0
8 0
ucredpl 96 12718 0 12709 1 0 1 1 0
8 0
zombiepl 144 12884 0 12884 2 1 1 1 0
8 1
processpl 896 12917 0 12884 5 1 4 5 0
8 0
procpl 632 34469 0 34423 19 14 5 5 0
8 1
srpgc 64 58 0 58 25 24 1 1 0
8 1
sosppl 128 115 0 115 23 22 1 1 0
8 1
sockpl 384 22488 0 22459 73 67 6 22 0
8 2
mcl64k 65536 265 0 0 33 28 5 33 0
8 0
mcl16k 16384 25 0 0 4 1 3 3 0
8 0
mcl12k 12288 49 0 0 2 0 2 2 0
8 0
mcl9k 9216 25 0 0 2 0 2 2 0
8 0
mcl8k 8192 25 0 0 4 1 3 3 0
8 0
mcl4k 4096 49 0 0 5 2 3 4 0
8 0
mcl2k2 2112 18 0 0 2 0 2 2 0
8 0
mcl2k 2048 794 0 0 77 1 76 76 0
8 0
mtagpl 80 114 0 0 2 0 2 2 0
8 0
mbufpl 256 1349 0 0 60 0 60 60 0
8 0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064853000; item ordinal 1; addr 0xfffffd8064853f00 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064852000; item ordinal 0; addr 0xfffffd8064852200 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064852000; item ordinal 3; addr 0xfffffd8064852600 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064855000; item ordinal 0; addr 0xfffffd8064855700 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8066486000; item ordinal 1; addr 0xfffffd8066486c00 (p
0xfffffd8067e38000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd807108a000; item ordinal 0; addr 0xfffffd807108a500 (p
0xfffffd8067e38000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8071f1c000; item ordinal 1; addr 0xfffffd8071f1c900 (p
0xfffffd80674a6000); offset 0x0=0x0
bufpl 256 30224 0 23176 441 0 441 441 0
8 0
anonpl 16 1005485 0 998696 225 193 32 49 0
124 2
amapchunkpl 152 67187 0 67091 73 67 6 12 0
158 0
amappl16 192 58806 0 58484 175 157 18 32 0
8 0
amappl15 184 2002 0 2001 5 4 1 1 0
8 0
amappl14 176 1954 0 1951 2 1 1 1 0
8 0
amappl13 168 3304 0 3304 5 5 0 1 0
8 0
amappl12 160 1289 0 1279 1 0 1 1 0
8 0
amappl11 152 2422 0 2407 1 0 1 1 0
8 0
amappl10 144 561 0 555 1 0 1 1 0
8 0
amappl9 136 2656 0 2650 1 0 1 1 0
8 0
amappl8 128 2323 0 2244 3 0 3 3 0
8 0
amappl7 120 759 0 749 1 0 1 1 0
8 0
amappl6 112 2354 0 2339 1 0 1 1 0
8 0
amappl5 104 1958 0 1942 1 0 1 1 0
8 0
amappl4 96 12796 0 12755 2 0 2 2 0
8 0
amappl3 88 2345 0 2339 1 0 1 1 0
8 0
amappl2 80 105020 0 104942 4 2 2 3 0
8 0
amappl1 72 265801 0 265348 26 16 10 20 0
8 0
amappl 80 35329 0 35290 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 132 0 3 3 0 3 3 0
8 0
uaddrrnd 24 12902 0 12872 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 12902 0 12872 1 0 1 1 0
8 0
vmmpekpl 168 82774 0 82741 2 0 2 2 0
8 0
vmmpepl 168 1516623 0 1515076 239 160 79 89 0
357 3
vmsppl 368 12887 0 12872 2 0 2 2 0
8 0
pdppl 4096 25811 0 25772 6 0 6 6 0
8 0
pvpl 32 3134182 0 3123993 527 415 112 127 0 265
26
pmappl 232 12901 0 12886 11 10 1 2 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 791 0 72 22 0 22 22 0
8 0
---
This bug is generated by a bot. It may contain errors.
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syzbot found the following crash on:
HEAD commit: 2f346d2b Fix ampintc_cpuinit() prototype.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=115aa675600000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=7f790d25478dfb11f18c
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+7f790d...@syzkaller.appspotmail.com
login: panic: pool_cache_item_magic_check: mbufpl cpu free list modified:
item addr 0xfffffd806f2b8400+24 0xfdf3469d2f7d0bfd!=0x20cbb1d4bf89efd
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*511182 40940 0 0 0x4000000 1 syz-executor.0
235738 25103 0 0x14000 0x200 0 softnet
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174 m_get
sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174
sys/kern/uipc_mbuf.c:667
ether_resolve(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230,ffff8000221a30a8)
at
ether_resolve+0x49f sys/net/if_ethersubr.c:224
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 ether_encap sys/net/if_ethersubr.c:307 [inline]
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 sys/net/if_ethersubr.c:336
ip_output(fffffd80674a4900,0,fffffd806f6d6818,20,0,fffffd806f6d67a8) at
ip_output+0x125d sys/netinet/ip_output.c:511
rip_output(fffffd80674a4900,fffffd807ebaf488,ffff8000221a32b8,ffff800021152000)
at
rip_output+0x252 sys/netinet/raw_ip.c:289
rip_usrreq(fffffd807ebaf488,9,fffffd80674a4900,0,0,ffff800020ac09f0) at
rip_usrreq+0x46a sys/netinet/raw_ip.c:538
sosend(fffffd807ebaf488,0,ffff8000221a3420,0,0,0) at sosend+0x645
sys/kern/uipc_socket.c:524
sendit(ffff800020ac09f0,6,ffff8000221a3580,0,ffff8000221a3670) at
sendit+0x52b sys/kern/uipc_syscalls.c:662
sys_sendmsg(ffff800020ac09f0,ffff8000221a3628,ffff8000221a3670) at
sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
syscall(ffff8000221a36f0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff8000221a36f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
end trace frame: 0xffff8000221a3770, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr
0xfffffd806f2b8400+24 0xfdf3469d2f7d0bfd!=0x20cbb1d4bf89efd
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174 m_get
sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd8072682200,0,3b9aca00,2) at m_copym+0x174
sys/kern/uipc_mbuf.c:667
ether_resolve(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230,ffff8000221a30a8)
at
ether_resolve+0x49f sys/net/if_ethersubr.c:224
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 ether_encap sys/net/if_ethersubr.c:307 [inline]
ether_output(ffff8000001732a8,fffffd8072682200,fffffd806f6d6828,fffffd806f30b230)
at
ether_output+0x47 sys/net/if_ethersubr.c:336
ip_output(fffffd80674a4900,0,fffffd806f6d6818,20,0,fffffd806f6d67a8) at
ip_output+0x125d sys/netinet/ip_output.c:511
rip_output(fffffd80674a4900,fffffd807ebaf488,ffff8000221a32b8,ffff800021152000)
at
rip_output+0x252 sys/netinet/raw_ip.c:289
rip_usrreq(fffffd807ebaf488,9,fffffd80674a4900,0,0,ffff800020ac09f0) at
rip_usrreq+0x46a sys/netinet/raw_ip.c:538
sosend(fffffd807ebaf488,0,ffff8000221a3420,0,0,0) at sosend+0x645
sys/kern/uipc_socket.c:524
sendit(ffff800020ac09f0,6,ffff8000221a3580,0,ffff8000221a3670) at
sendit+0x52b sys/kern/uipc_syscalls.c:662
sys_sendmsg(ffff800020ac09f0,ffff8000221a3628,ffff8000221a3670) at
sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
syscall(ffff8000221a36f0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff8000221a36f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffffd2,0,3,837a1f5b280) at Xsyscall+0x128
end of kernel
end trace frame: 0x83a53b75d00, count: -15
ddb{1}> show registers
rdi 0xffffffff8215e1e7 db_enter+0x17
rsi 0x4493 __ALIGN_SIZE+0x3493
rbp 0xffff8000221a2d80
rbx 0xffff8000221a2e30
rdx 0x4494 __ALIGN_SIZE+0x3494
rcx 0xffff800021152000
rax 0xffff800021152000
r8 0xffffffff810b3fbf kprintf+0x16f
r9 0x1
r10 0x25
r11 0x7f0f14203a15d7e
r12 0x3000000008
r13 0xffff8000221a2d90
r14 0x100
r15 0x1
rip 0xffffffff8215e1e8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000221a2d70
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.0) pid=511182 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=78, usrpri=78, nice=20
forw=0xffffffffffffffff, list=0xffff800020ab13d8,0xffffffff8265a6f8
process=0xffff800020adc000 user=0xffff80002219e000,
vmspace=0xfffffd807f00b5c0
estcpu=28, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
40940 246289 39925 0 2 0 syz-executor.0
40940 38780 39925 0 3 0x4000080 kqread syz-executor.0
40940 300857 39925 0 3 0x4000080 select syz-executor.0
40940 44043 39925 0 3 0x4000080 fsleep syz-executor.0
*40940 511182 39925 0 7 0x4000000 syz-executor.0
39925 219108 2116 0 3 0x82 nanosleep syz-executor.0
71362 239934 1 0 3 0x100083 ttyin getty
91624 218505 2116 0 3 0x82 piperd syz-executor.1
53447 513449 0 0 3 0x14200 acct acct
64043 77361 0 0 3 0x14200 bored sosplice
2116 381914 74544 0 3 0x82 thrsleep syz-fuzzer
2116 279691 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 492147 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 264353 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 454115 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 316876 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 140053 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 213731 74544 0 3 0x4000082 thrsleep syz-fuzzer
2116 350773 74544 0 3 0x4000082 kqread syz-fuzzer
2116 323301 74544 0 3 0x4000082 thrsleep syz-fuzzer
74544 51095 19730 0 3 0x10008a pause ksh
19730 267327 28264 0 3 0x92 select sshd
28264 371160 1 0 3 0x80 select sshd
98812 424827 55580 74 3 0x100092 bpf pflogd
55580 272397 1 0 3 0x80 netio pflogd
69042 493888 34547 73 3 0x100090 kqread syslogd
34547 146301 1 0 3 0x100082 netio syslogd
77273 95796 1 77 3 0x100090 poll dhclient
62173 348841 1 0 3 0x80 poll dhclient
81474 238373 0 0 3 0x14200 pgzero zerothread
39504 473075 0 0 3 0x14200 aiodoned aiodoned
66101 345052 0 0 3 0x14200 syncer update
8052 163538 0 0 3 0x14200 cleaner cleaner
67631 44027 0 0 3 0x14200 reaper reaper
19551 113205 0 0 3 0x14200 pgdaemon pagedaemon
5048 367291 0 0 3 0x14200 bored crynlk
55710 355625 0 0 3 0x14200 bored crypto
91348 313137 0 0 3 0x40014200 acpi0 acpi0
87113 392758 0 0 3 0x40014200 idle1
25103 235738 0 0 7 0x14200 softnet
7814 75269 0 0 3 0x14200 bored systqmp
80369 182155 0 0 3 0x14200 bored systq
20567 365312 0 0 3 0x40014200 bored softclock
80730 422546 0 0 3 0x40014200 idle0
4583 87431 0 0 3 0x14200 bored smr
1 406357 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex
/syzkaller/managers/multicore/kernel/sys/kern/kern_timeout.c:94 r = 0
(0xffffffff824b8230)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 timeout_del+0x2d sys/kern/kern_timeout.c:364
#4 vio_txeof+0x1dd sys/dev/pv/if_vio.c:1158
#5 vio_start+0x3e sys/dev/pv/if_vio.c:724
#6 if_qstart_compat+0x36 sys/net/if.c:687
#7 ifq_serialize+0x173 sys/net/ifq.c:108
#8 taskq_thread+0x9c sys/kern/kern_task.c:368
#9 proc_trampoline+0x1c
Process 40940 (syz-executor.0) thread 0xffff800020ac09f0 (511182)
exclusive rwlock netlock r = 0 (0xffffffff824b35b8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 solock+0x5a sys/kern/uipc_socket2.c:282
#2 sosend+0x51b sys/kern/uipc_socket.c:512
#3 sendit+0x52b sys/kern/uipc_syscalls.c:662
#4 sys_sendmsg+0x1a4 sys/kern/uipc_syscalls.c:567
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6 Xsyscall+0x128
Process 25103 (softnet) thread 0xffff800020a10000 (235738)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82628d10)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 if_qstart_compat+0x1a sys/net/if.c:685
#2 ifq_serialize+0x173 sys/net/ifq.c:108
#3 taskq_thread+0x9c sys/kern/kern_task.c:368
#4 proc_trampoline+0x1c
shared rwlock softnet r = 0 (0xffff8000000230e0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 taskq_thread+0x8f sys/kern/kern_task.c:367
#2 proc_trampoline+0x1c
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9600 6468K 7460K 78643K 28833 0 0
pcb 13 11K 12K 78643K 945 0 0
rtable 125 14K 14K 78643K 5368 0 0
ifaddr 90 24K 28K 78643K 1297 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1912 0 0
iov 0 0K 24K 78643K 874 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1214 76K 77K 78643K 9836 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 9K 78643K 161 0 0
VM map 2 1K 1K 78643K 16 0 0
sem 12 0K 1K 78643K 1275 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 5 13K 25K 78643K 12789 0 0
sigio 0 0K 0K 78643K 151 0 0
proc 61 63K 95K 78643K 2573 0 0
subproc 32 2K 2K 78643K 663 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 653 0 0
in_multi 35 2K 2K 78643K 2006 0 0
ether_multi 1 0K 0K 78643K 43 0 0
mrt 9 0K 0K 78643K 68 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 132 583K 583K 78643K 132 0 0
exec 0 0K 1K 78643K 1204 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 162 25K 34K 78643K 37143 0 0
UVM aobj 130 9K 9K 78643K 133 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 1K 78643K 907 0 0
NDP 21 0K 1K 78643K 593 0 0
temp 237 3557K 3659K 78643K 132394 0 0
kqueue 0 0K 0K 78643K 295 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 130 0 125 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 647 0 645 1 0 1 1 0
8 0
rtentry 112 1465 0 1421 2 0 2 2 0
8 0
unpcb 120 3820 0 3802 8 7 1 2 0
8 0
syncache 264 32 0 32 9 9 0 1 0
8 0
sackhl 24 1 0 1 1 1 0 1 0
8 0
tcpqe 32 178 0 178 14 14 0 1 0
8 0
tcpcb 544 2728 0 2724 7 6 1 3 0
8 0
inpcb 280 17755 0 17746 51 48 3 13 0
8 2
rttmr 72 10 0 9 6 5 1 1 0
8 0
nd6 48 316 0 312 2 1 1 1 0
8 0
pkpcb 40 22 0 22 7 7 0 1 0
8 0
swfcl 56 8 0 0 1 0 1 1 0
8 0
ppxss 1128 178 0 177 4 3 1 1 0
8 0
pffrag 232 2829 0 2828 24 23 1 20 0
482 0
pffrnode 88 2398 0 2397 5 4 1 1 0
8 0
pffrent 40 5235 0 5234 8 7 1 4 0
8 0
pfosfp 40 846 0 423 5 0 5 5 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
pfstitem 24 395 0 345 1 0 1 1 0
8 0
pfstkey 112 396 0 346 2 0 2 2 0
8 0
pfstate 328 396 0 346 9 4 5 5 0
8 0
pfrule 1360 21 0 16 2 1 1 2 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 8663 0 8396 44 27 17 20 0
8 0
art_table 32 8664 0 8396 4 1 3 3 0
8 0
art_node 16 1454 0 1414 1 0 1 1 0
8 0
sysvmsgpl 40 16 0 8 1 0 1 1 0
8 0
semapl 112 1263 0 1253 1 0 1 1 0
8 0
shmpl 112 131 0 3 4 0 4 4 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 21606 0 20177 47 0 47 47 0
8 0
ffsino 272 21606 0 20177 97 1 96 96 0
8 0
nchpl 144 39112 0 38628 60 39 21 60 0
8 0
uvmvnodes 72 6919 0 0 126 0 126 126 0
8 0
vnodes 208 6919 0 0 365 0 365 365 0
8 0
namei 1024 120072 0 120072 3 2 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
vmpool 552 14 0 14 6 6 0 1 0
8 0
scsiplug 64 116 0 116 8 8 0 1 0
8 0
scxspl 192 111838 0 111838 35 34 1 7 0
8 1
plimitpl 152 614 0 606 1 0 1 1 0
8 0
sigapl 432 12887 0 12872 4 2 2 3 0
8 0
futexpl 56 177462 0 177461 1 0 1 1 0
8 0
knotepl 112 2600 0 2581 8 7 1 3 0
8 0
kqueuepl 104 2704 0 2700 4 3 1 2 0
8 0
pipepl 112 4072 0 4053 13 11 2 2 0
8 0
fdescpl 488 12888 0 12872 3 0 3 3 0
8 0
filepl 152 77215 0 77111 51 45 6 14 0
8 1
lockfpl 104 6708 0 6707 1 0 1 1 0
8 0
lockfspl 48 2409 0 2408 1 0 1 1 0
8 0
sessionpl 112 63 0 52 1 0 1 1 0
8 0
pgrppl 48 1573 0 1562 1 0 1 1 0
8 0
ucredpl 96 12718 0 12709 1 0 1 1 0
8 0
zombiepl 144 12884 0 12884 2 1 1 1 0
8 1
processpl 896 12917 0 12884 5 1 4 5 0
8 0
procpl 632 34469 0 34423 19 14 5 5 0
8 1
srpgc 64 58 0 58 25 24 1 1 0
8 1
sosppl 128 115 0 115 23 22 1 1 0
8 1
sockpl 384 22488 0 22459 73 67 6 22 0
8 2
mcl64k 65536 265 0 0 33 28 5 33 0
8 0
mcl16k 16384 25 0 0 4 1 3 3 0
8 0
mcl12k 12288 49 0 0 2 0 2 2 0
8 0
mcl9k 9216 25 0 0 2 0 2 2 0
8 0
mcl8k 8192 25 0 0 4 1 3 3 0
8 0
mcl4k 4096 49 0 0 5 2 3 4 0
8 0
mcl2k2 2112 18 0 0 2 0 2 2 0
8 0
mcl2k 2048 794 0 0 77 1 76 76 0
8 0
mtagpl 80 114 0 0 2 0 2 2 0
8 0
mbufpl 256 1349 0 0 60 0 60 60 0
8 0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064853000; item ordinal 1; addr 0xfffffd8064853f00 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064852000; item ordinal 0; addr 0xfffffd8064852200 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064852000; item ordinal 3; addr 0xfffffd8064852600 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8064855000; item ordinal 0; addr 0xfffffd8064855700 (p
0xfffffd807ea94000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8066486000; item ordinal 1; addr 0xfffffd8066486c00 (p
0xfffffd8067e38000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd807108a000; item ordinal 0; addr 0xfffffd807108a500 (p
0xfffffd8067e38000); offset 0x0=0x0
mbufpl: pool(0xffffffff8263bd58:mbufpl): free list modified: page
0xfffffd8071f1c000; item ordinal 1; addr 0xfffffd8071f1c900 (p
0xfffffd80674a6000); offset 0x0=0x0
bufpl 256 30224 0 23176 441 0 441 441 0
8 0
anonpl 16 1005485 0 998696 225 193 32 49 0
124 2
amapchunkpl 152 67187 0 67091 73 67 6 12 0
158 0
amappl16 192 58806 0 58484 175 157 18 32 0
8 0
amappl15 184 2002 0 2001 5 4 1 1 0
8 0
amappl14 176 1954 0 1951 2 1 1 1 0
8 0
amappl13 168 3304 0 3304 5 5 0 1 0
8 0
amappl12 160 1289 0 1279 1 0 1 1 0
8 0
amappl11 152 2422 0 2407 1 0 1 1 0
8 0
amappl10 144 561 0 555 1 0 1 1 0
8 0
amappl9 136 2656 0 2650 1 0 1 1 0
8 0
amappl8 128 2323 0 2244 3 0 3 3 0
8 0
amappl7 120 759 0 749 1 0 1 1 0
8 0
amappl6 112 2354 0 2339 1 0 1 1 0
8 0
amappl5 104 1958 0 1942 1 0 1 1 0
8 0
amappl4 96 12796 0 12755 2 0 2 2 0
8 0
amappl3 88 2345 0 2339 1 0 1 1 0
8 0
amappl2 80 105020 0 104942 4 2 2 3 0
8 0
amappl1 72 265801 0 265348 26 16 10 20 0
8 0
amappl 80 35329 0 35290 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 132 0 3 3 0 3 3 0
8 0
uaddrrnd 24 12902 0 12872 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 12902 0 12872 1 0 1 1 0
8 0
vmmpekpl 168 82774 0 82741 2 0 2 2 0
8 0
vmmpepl 168 1516623 0 1515076 239 160 79 89 0
357 3
vmsppl 368 12887 0 12872 2 0 2 2 0
8 0
pdppl 4096 25811 0 25772 6 0 6 6 0
8 0
pvpl 32 3134182 0 3123993 527 415 112 127 0 265
26
pmappl 232 12901 0 12886 11 10 1 2 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 791 0 72 22 0 22 22 0
8 0
---
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
Sep 22, 2019, 2:35:07 PM9/22/19
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 2f346d2b Fix ampintc_cpuinit() prototype.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=172dbaf9600000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+7f790d...@syzkaller.appspotmail.com
*223073 33275 0 0x14000 0x40000200 0K softclock
mld6_sendpkt(ffff800000a5db80,83,0) at mld6_sendpkt+0xaf
sys/netinet6/mld6.c:410
mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer
sys/netinet6/mld6.c:363 [inline]
mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341
pffasttimo(ffffffff8261b408) at pffasttimo+0x85 sys/kern/uipc_domain.c:292
timeout_run(ffffffff8261b408) at timeout_run+0xc4 timeout_sync_leave
sys/kern/kern_timeout.c:177 [inline]
timeout_run(ffffffff8261b408) at timeout_run+0xc4
sys/kern/kern_timeout.c:474
softclock_thread(ffff800020a10c58) at softclock_thread+0x16a
sys/kern/kern_timeout.c:553
end trace frame: 0x0, count: 5
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
ddb{0}> trace
mld6_sendpkt(ffff800000a5db80,83,0) at mld6_sendpkt+0xaf
sys/netinet6/mld6.c:410
mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer
sys/netinet6/mld6.c:363 [inline]
mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341
pffasttimo(ffffffff8261b408) at pffasttimo+0x85 sys/kern/uipc_domain.c:292
timeout_run(ffffffff8261b408) at timeout_run+0xc4 timeout_sync_leave
sys/kern/kern_timeout.c:177 [inline]
timeout_run(ffffffff8261b408) at timeout_run+0xc4
sys/kern/kern_timeout.c:474
softclock_thread(ffff800020a10c58) at softclock_thread+0x16a
sys/kern/kern_timeout.c:553
end trace frame: 0x0, count: -10
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020a24ca0
rbx 0xffff800020a24d50
rdx 0x8b
rcx 0x2
rax 0x1
r11 0x25b04f92aed1ae9b
r12 0x3000000008
r13 0xffff800020a24cb0
PROC (softclock) pid=223073 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
pri=0, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020a10ed0,0xffff800020a10778
process=0xffff800020a12700 user=0xffff800020a20000,
vmspace=0xffffffff8266e3c8
estcpu=0, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
6579 169637 93404 0 3 0x82 thrsleep syz-execprog
6579 446608 93404 0 7 0x4000002 syz-execprog
6579 484304 93404 0 3 0x4000082 thrsleep syz-execprog
6579 221369 93404 0 3 0x4000082 thrsleep syz-execprog
6579 181552 93404 0 3 0x4000082 kqread syz-execprog
6579 91755 93404 0 3 0x4000082 thrsleep syz-execprog
6579 288157 93404 0 3 0x4000082 thrsleep syz-execprog
6579 121205 93404 0 2 0x4000482 syz-execprog
6579 229246 93404 0 3 0x4000082 thrsleep syz-execprog
93404 255569 69799 0 3 0x10008a pause ksh
69799 97233 67538 0 3 0x92 select sshd
15736 213315 1 0 3 0x100083 ttyin getty
67538 90333 1 0 3 0x80 select sshd
76259 203042 33994 74 2 0x100492 pflogd
33994 189807 1 0 3 0x80 netio pflogd
1034 403469 13867 73 3 0x100090 kqread syslogd
13867 256731 1 0 3 0x100082 netio syslogd
27451 89698 1 77 3 0x100090 poll dhclient
70923 158019 1 0 3 0x80 poll dhclient
81067 266452 0 0 3 0x14200 pgzero zerothread
10721 357686 0 0 3 0x14200 aiodoned aiodoned
47168 72973 0 0 3 0x14200 syncer update
54810 147975 0 0 3 0x14200 cleaner cleaner
99966 344262 0 0 3 0x14200 reaper reaper
84698 97277 0 0 3 0x14200 pgdaemon pagedaemon
93422 83755 0 0 3 0x14200 bored crynlk
28864 243884 0 0 3 0x14200 bored crypto
67572 60761 0 0 3 0x40014200 acpi0 acpi0
65762 274403 0 0 3 0x40014200 idle1
15101 495457 0 0 3 0x14200 bored softnet
22019 456777 0 0 3 0x14200 bored systqmp
24040 465446 0 0 3 0x14200 bored systq
*33275 223073 0 0 7 0x40014200 softclock
22597 167827 0 0 3 0x40014200 idle0
90656 125928 0 0 3 0x14200 bored smr
1 429753 0 0 3 0x82 wait init
Process 33275 (softclock) thread 0xffff800020a10c58 (223073)
#2 pffasttimo+0x85 sys/kern/uipc_domain.c:292
#3 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:177 [inline]
#3 timeout_run+0xc4 sys/kern/kern_timeout.c:474
#4 softclock_thread+0x16a sys/kern/kern_timeout.c:553
#5 proc_trampoline+0x1c
shared rwlock timeout r = 0 (0xffffffff824b8250)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 timeout_run+0xb9 sys/kern/kern_timeout.c:473
#2 softclock_thread+0x16a sys/kern/kern_timeout.c:553
#3 proc_trampoline+0x1c
#2 mi_switch+0x392 sys/kern/sched_bsd.c:441
#3 sleep_finish+0x113 sys/kern/kern_synch.c:373
#4 softclock_thread+0x103 sys/kern/kern_timeout.c:548
#5 proc_trampoline+0x1c
ddb{0}> show malloc
pcb 13 8K 8K 78643K 13 0 0
rtable 77 2K 2K 78643K 165 0 0
ifaddr 32 9K 9K 78643K 226 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
proc 59 63K 83K 78643K 384 0 0
ether_multi 1 0K 0K 78643K 1 0 0
exec 0 0K 1K 78643K 199 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
temp 48 3538K 3602K 78643K 3722 0 0
8 0
rtentry 112 34 0 4 1 0 1 1 0
8 0
unpcb 120 29 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 1 0 1 0
8 0
tcpqe 32 7 0 7 1 1 0 1 0
8 0
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 227 0 221 1 0 1 1 0
8 0
nd6 48 2 0 0 1 0 1 1 0
8 0
8 0
pfstkey 112 10 0 2 1 0 1 1 0
8 0
pfstate 328 10 0 2 1 0 1 1 0
8 0
8 0
art_table 32 169 0 2 2 0 2 2 0
8 0
art_node 16 33 0 6 1 0 1 1 0
8 0
ffsino 272 1615 0 213 94 0 94 94 0
8 0
nchpl 144 2047 0 436 60 0 60 60 0
8 0
uvmvnodes 72 1625 0 0 30 0 30 30 0
8 0
vnodes 208 1625 0 0 86 0 86 86 0
8 0
namei 1024 4914 0 4914 2 1 1 1 0
8 1
8 7
plimitpl 152 15 0 8 1 0 1 1 0
8 0
sigapl 432 419 0 406 2 0 2 2 0
8 0
knotepl 112 39 0 28 1 0 1 1 0
8 0
kqueuepl 104 2 0 0 1 0 1 1 0
8 0
pipepl 112 154 0 141 2 1 1 1 0
8 0
fdescpl 488 420 0 406 3 0 3 3 0
8 0
filepl 152 1507 0 1449 3 0 3 3 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 19 0 9 1 0 1 1 0
8 0
pgrppl 48 19 0 9 1 0 1 1 0
8 0
ucredpl 96 52 0 43 1 0 1 1 0
8 0
zombiepl 144 406 0 405 2 1 1 1 0
8 0
processpl 896 435 0 405 4 0 4 4 0
8 0
procpl 632 443 0 405 4 0 4 4 0
8 0
sockpl 384 273 0 255 2 0 2 2 0
8 0
mcl4k 4096 3 0 0 1 0 1 1 0
8 0
mcl2k 2048 76 0 0 10 0 10 10 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 125 0 0 7 0 7 7 0
8 0
bufpl 256 6079 0 1314 298 0 298 298 0
8 0
anonpl 16 27232 0 25304 15 2 13 13 0
124 5
amapchunkpl 152 1001 0 923 5 0 5 5 0
158 1
amappl16 192 938 0 887 3 0 3 3 0
8 0
amappl15 184 2 0 1 1 0 1 1 0
8 0
amappl14 176 34 0 30 2 1 1 1 0
8 0
amappl12 160 11 0 9 1 0 1 1 0
8 0
amappl11 152 48 0 33 1 0 1 1 0
8 0
amappl10 144 12 0 8 1 0 1 1 0
8 0
amappl9 136 655 0 648 1 0 1 1 0
8 0
amappl8 128 319 0 309 1 0 1 1 0
8 0
amappl7 120 32 0 29 1 0 1 1 0
8 0
amappl6 112 74 0 66 1 0 1 1 0
8 0
amappl5 104 121 0 108 1 0 1 1 0
8 0
amappl4 96 690 0 662 1 0 1 1 0
8 0
amappl3 88 115 0 110 1 0 1 1 0
8 0
amappl2 80 1331 0 1271 4 1 3 3 0
8 1
amappl1 72 16558 0 16137 26 8 18 20 0
8 8
amappl 80 672 0 643 1 0 1 1 0
8 0
uaddrrnd 24 420 0 406 1 0 1 1 0
8 0
vmmpekpl 168 6808 0 6785 2 0 2 2 0
8 0
vmmpepl 168 40620 0 39673 93 13 80 80 0 357
37
vmsppl 368 419 0 406 2 0 2 2 0
8 0
pdppl 4096 847 0 812 6 0 6 6 0
8 1
pvpl 32 132294 0 127996 118 3 115 115 0 265
80
pmappl 232 419 0 406 1 0 1 1 0
8 0
8 0
ddb{0}>
HEAD commit: 2f346d2b Fix ampintc_cpuinit() prototype.
git tree: openbsd
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=7f790d25478dfb11f18c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1406c1d9600000
dashboard link: https://syzkaller.appspot.com/bug?extid=7f790d25478dfb11f18c
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+7f790d...@syzkaller.appspotmail.com
panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item
addr 0xfffffd806d6c7a00+24 0xcf59766e8d1be48c!=0x30a68beef2195a8c
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
446608 6579 0 0x2 0x4000000 1 syz-execprog
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*223073 33275 0 0x14000 0x40000200 0K softclock
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
mld6_sendpkt(ffff800000a5db80,83,0) at mld6_sendpkt+0xaf
sys/netinet6/mld6.c:410
mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer
sys/netinet6/mld6.c:363 [inline]
mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341
pffasttimo(ffffffff8261b408) at pffasttimo+0x85 sys/kern/uipc_domain.c:292
timeout_run(ffffffff8261b408) at timeout_run+0xc4 timeout_sync_leave
sys/kern/kern_timeout.c:177 [inline]
timeout_run(ffffffff8261b408) at timeout_run+0xc4
sys/kern/kern_timeout.c:474
softclock_thread(ffff800020a10c58) at softclock_thread+0x16a
sys/kern/kern_timeout.c:553
end trace frame: 0x0, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr
0xfffffd806d6c7a00+24 0xcf59766e8d1be48c!=0x30a68beef2195a8c
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,1) at m_get+0x4c sys/kern/uipc_mbuf.c:250
panic() at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
pool_cache_item_magic_check sys/kern/subr_pool.c:1789 [inline]
pool_cache_get(ffffffff8263bd58) at pool_cache_get+0x323
sys/kern/subr_pool.c:1892
pool_get() at pool_get+0x91 sys/kern/subr_pool.c:572
mld6_sendpkt(ffff800000a5db80,83,0) at mld6_sendpkt+0xaf
sys/netinet6/mld6.c:410
mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer
sys/netinet6/mld6.c:363 [inline]
mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341
pffasttimo(ffffffff8261b408) at pffasttimo+0x85 sys/kern/uipc_domain.c:292
timeout_run(ffffffff8261b408) at timeout_run+0xc4 timeout_sync_leave
sys/kern/kern_timeout.c:177 [inline]
timeout_run(ffffffff8261b408) at timeout_run+0xc4
sys/kern/kern_timeout.c:474
softclock_thread(ffff800020a10c58) at softclock_thread+0x16a
sys/kern/kern_timeout.c:553
end trace frame: 0x0, count: -10
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020a24ca0
rbx 0xffff800020a24d50
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff810b3fbf kprintf+0x16f
r9 0x1
r10 0x3db875bfc612407b
r9 0x1
r11 0x25b04f92aed1ae9b
r12 0x3000000008
r13 0xffff800020a24cb0
r14 0x100
r15 0x1
rip 0xffffffff8215e1e8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020a24c90
r15 0x1
rip 0xffffffff8215e1e8 db_enter+0x18
cs 0x8
rflags 0x246
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
db_enter+0x18: addq $0x8,%rsp
PROC (softclock) pid=223073 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
pri=0, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020a10ed0,0xffff800020a10778
process=0xffff800020a12700 user=0xffff800020a20000,
vmspace=0xffffffff8266e3c8
estcpu=0, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
8338 185968 6579 0 2 0x482 syz-executor.0
6579 169637 93404 0 3 0x82 thrsleep syz-execprog
6579 446608 93404 0 7 0x4000002 syz-execprog
6579 484304 93404 0 3 0x4000082 thrsleep syz-execprog
6579 221369 93404 0 3 0x4000082 thrsleep syz-execprog
6579 181552 93404 0 3 0x4000082 kqread syz-execprog
6579 91755 93404 0 3 0x4000082 thrsleep syz-execprog
6579 288157 93404 0 3 0x4000082 thrsleep syz-execprog
6579 121205 93404 0 2 0x4000482 syz-execprog
6579 229246 93404 0 3 0x4000082 thrsleep syz-execprog
93404 255569 69799 0 3 0x10008a pause ksh
69799 97233 67538 0 3 0x92 select sshd
15736 213315 1 0 3 0x100083 ttyin getty
67538 90333 1 0 3 0x80 select sshd
76259 203042 33994 74 2 0x100492 pflogd
33994 189807 1 0 3 0x80 netio pflogd
1034 403469 13867 73 3 0x100090 kqread syslogd
13867 256731 1 0 3 0x100082 netio syslogd
27451 89698 1 77 3 0x100090 poll dhclient
70923 158019 1 0 3 0x80 poll dhclient
81067 266452 0 0 3 0x14200 pgzero zerothread
10721 357686 0 0 3 0x14200 aiodoned aiodoned
47168 72973 0 0 3 0x14200 syncer update
54810 147975 0 0 3 0x14200 cleaner cleaner
99966 344262 0 0 3 0x14200 reaper reaper
84698 97277 0 0 3 0x14200 pgdaemon pagedaemon
93422 83755 0 0 3 0x14200 bored crynlk
28864 243884 0 0 3 0x14200 bored crypto
67572 60761 0 0 3 0x40014200 acpi0 acpi0
65762 274403 0 0 3 0x40014200 idle1
15101 495457 0 0 3 0x14200 bored softnet
22019 456777 0 0 3 0x14200 bored systqmp
24040 465446 0 0 3 0x14200 bored systq
*33275 223073 0 0 7 0x40014200 softclock
22597 167827 0 0 3 0x40014200 idle0
90656 125928 0 0 3 0x14200 bored smr
1 429753 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 33275 (softclock) thread 0xffff800020a10c58 (223073)
exclusive rwlock netlock r = 0 (0xffffffff824b35b8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 mld6_fasttimeo+0x1d sys/netinet6/mld6.c:336
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#2 pffasttimo+0x85 sys/kern/uipc_domain.c:292
#3 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:177 [inline]
#3 timeout_run+0xc4 sys/kern/kern_timeout.c:474
#4 softclock_thread+0x16a sys/kern/kern_timeout.c:553
#5 proc_trampoline+0x1c
shared rwlock timeout r = 0 (0xffffffff824b8250)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 timeout_run+0xb9 sys/kern/kern_timeout.c:473
#2 softclock_thread+0x16a sys/kern/kern_timeout.c:553
#3 proc_trampoline+0x1c
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82628d10)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#2 mi_switch+0x392 sys/kern/sched_bsd.c:441
#3 sleep_finish+0x113 sys/kern/kern_synch.c:373
#4 softclock_thread+0x103 sys/kern/kern_timeout.c:548
#5 proc_trampoline+0x1c
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9457 6385K 6385K 78643K 10544 0 0
pcb 13 8K 8K 78643K 13 0 0
rtable 77 2K 2K 78643K 165 0 0
ifaddr 32 9K 9K 78643K 226 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1468 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1181 74K 74K 78643K 1186 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
UFS mount 5 36K 36K 78643K 5 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 2 4K 12K 78643K 211 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
proc 59 63K 83K 78643K 384 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 22 1K 1K 78643K 22 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
exec 0 0K 1K 78643K 199 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 72 12K 12K 78643K 1155 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 5 0K 0K 78643K 7 0 0
crypto data 1 1K 1K 78643K 1 0 0
temp 48 3538K 3602K 78643K 3722 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 4 0 1 1 0 1 1 0
Idle
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 17 0 15 1 0 1 1 0
plcache 128 20 0 0 1 0 1 1 0
8 0
8 0
rtentry 112 34 0 4 1 0 1 1 0
8 0
unpcb 120 29 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 1 0 1 0
8 0
tcpqe 32 7 0 7 1 1 0 1 0
8 0
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 227 0 221 1 0 1 1 0
8 0
nd6 48 2 0 0 1 0 1 1 0
8 0
pfosfp 40 846 0 423 5 0 5 5 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
pfstitem 24 10 0 2 1 0 1 1 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
8 0
pfstkey 112 10 0 2 1 0 1 1 0
8 0
pfstate 328 10 0 2 1 0 1 1 0
8 0
pfrule 1360 21 0 16 2 1 1 2 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 168 0 2 11 0 11 11 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
8 0
art_table 32 169 0 2 2 0 2 2 0
8 0
art_node 16 33 0 6 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1615 0 213 46 0 46 46 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
8 0
ffsino 272 1615 0 213 94 0 94 94 0
8 0
nchpl 144 2047 0 436 60 0 60 60 0
8 0
uvmvnodes 72 1625 0 0 30 0 30 30 0
8 0
vnodes 208 1625 0 0 86 0 86 86 0
8 0
namei 1024 4914 0 4914 2 1 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
scxspl 192 5380 0 5380 8 1 7 7 0
8 0
8 7
plimitpl 152 15 0 8 1 0 1 1 0
8 0
sigapl 432 419 0 406 2 0 2 2 0
8 0
knotepl 112 39 0 28 1 0 1 1 0
8 0
kqueuepl 104 2 0 0 1 0 1 1 0
8 0
pipepl 112 154 0 141 2 1 1 1 0
8 0
fdescpl 488 420 0 406 3 0 3 3 0
8 0
filepl 152 1507 0 1449 3 0 3 3 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 19 0 9 1 0 1 1 0
8 0
pgrppl 48 19 0 9 1 0 1 1 0
8 0
ucredpl 96 52 0 43 1 0 1 1 0
8 0
zombiepl 144 406 0 405 2 1 1 1 0
8 0
processpl 896 435 0 405 4 0 4 4 0
8 0
procpl 632 443 0 405 4 0 4 4 0
8 0
sockpl 384 273 0 255 2 0 2 2 0
8 0
mcl4k 4096 3 0 0 1 0 1 1 0
8 0
mcl2k 2048 76 0 0 10 0 10 10 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 125 0 0 7 0 7 7 0
8 0
bufpl 256 6079 0 1314 298 0 298 298 0
8 0
anonpl 16 27232 0 25304 15 2 13 13 0
124 5
amapchunkpl 152 1001 0 923 5 0 5 5 0
158 1
amappl16 192 938 0 887 3 0 3 3 0
8 0
amappl15 184 2 0 1 1 0 1 1 0
8 0
amappl14 176 34 0 30 2 1 1 1 0
8 0
amappl12 160 11 0 9 1 0 1 1 0
8 0
amappl11 152 48 0 33 1 0 1 1 0
8 0
amappl10 144 12 0 8 1 0 1 1 0
8 0
amappl9 136 655 0 648 1 0 1 1 0
8 0
amappl8 128 319 0 309 1 0 1 1 0
8 0
amappl7 120 32 0 29 1 0 1 1 0
8 0
amappl6 112 74 0 66 1 0 1 1 0
8 0
amappl5 104 121 0 108 1 0 1 1 0
8 0
amappl4 96 690 0 662 1 0 1 1 0
8 0
amappl3 88 115 0 110 1 0 1 1 0
8 0
amappl2 80 1331 0 1271 4 1 3 3 0
8 1
amappl1 72 16558 0 16137 26 8 18 20 0
8 8
amappl 80 672 0 643 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
8 0
uaddrrnd 24 420 0 406 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 420 0 406 1 0 1 1 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
8 0
vmmpekpl 168 6808 0 6785 2 0 2 2 0
8 0
vmmpepl 168 40620 0 39673 93 13 80 80 0 357
37
vmsppl 368 419 0 406 2 0 2 2 0
8 0
pdppl 4096 847 0 812 6 0 6 6 0
8 1
pvpl 32 132294 0 127996 118 3 115 115 0 265
80
pmappl 232 419 0 406 1 0 1 1 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 440 0 4 13 0 13 13 0
8 0
8 0
ddb{0}>
Anton Lindqvist
Sep 23, 2019, 3:20:12 AM9/23/19
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr ADDR+16 0x0!=ADDR (2)
Anton Lindqvist
Oct 23, 2019, 9:31:03 AM10/23/19
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: pool: cpu free list modified: mbufpl
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