pool: free list modified: shmpl (4)
0 views
Skip to first unread message
syzbot
Nov 13, 2023, 5:36:23 PM11/13/23
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 1066617378e4 Check notBefore/notAfter validity with ASN1_T..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17800498e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=6b6dd0b61a44ffdb0b08
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cd7115c4751a/disk-10666173.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/d37d1958872a/bsd-10666173.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b2aec359b72e/kernel-10666173.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6b6dd0...@syzkaller.appspotmail.com
panic: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
459457 83516 0 0 0 0 syz-executor.7
*461919 83516 0 0 0x4000000 1K syz-executor.7
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
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
*cpu1: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002e4291c0
rbx 0xffff800020d49ba7
rdx 0xffff800000d343c0
rcx 0xffff8000211da818
rax 0xffff800020d48ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xfd206507711f0924
r11 0x1289c3198f28529f
r12 0xffff800020d499a8
r13 0
r14 0
r15 0x1
rip 0xffffffff814b969c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002e4291b0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.7) tid=461919 pid=83516 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=78, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff8000211dad68,0xffff8000211ce570
process=0xffff8000ffff90c8 user=0xffff80002e424000, vmspace=0xfffffd806efc41d8
estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
97856 491079 54945 0 2 0 syz-executor.5
97856 457355 54945 0 3 0x4000080 fsleep syz-executor.5
27376 89829 78574 0 2 0 syz-executor.4
27376 272994 78574 0 3 0x4000080 fsleep syz-executor.4
27376 339879 78574 0 3 0x4000080 fsleep syz-executor.4
27376 361216 78574 0 3 0x4000080 fsleep syz-executor.4
64213 506628 87528 0 2 0 syz-executor.0
64213 220833 87528 0 3 0x4000080 kqread syz-executor.0
52324 78397 49103 0 2 0 syz-executor.1
52324 518221 49103 0 3 0x4000080 fsleep syz-executor.1
52324 135571 49103 0 2 0x4000000 syz-executor.1
29909 275201 94975 0 2 0 syz-executor.6
29909 160639 94975 0 3 0x4000080 fsleep syz-executor.6
83516 459457 76234 0 7 0 syz-executor.7
*83516 461919 76234 0 7 0x4000000 syz-executor.7
92088 376415 4589 0 2 0 syz-executor.2
92088 279304 4589 0 3 0x4000080 fsleep syz-executor.2
92088 239810 4589 0 3 0x4000080 fsleep syz-executor.2
88277 164962 0 0 3 0x14200 bored sosplice
49103 74924 415 0 3 0x82 nanoslp syz-executor.1
4589 498209 415 0 3 0x82 nanoslp syz-executor.2
78574 515143 415 0 3 0x82 nanoslp syz-executor.4
76234 214598 415 0 3 0x82 nanoslp syz-executor.7
94975 60021 415 0 3 0x82 nanoslp syz-executor.6
54945 485965 415 0 3 0x82 nanoslp syz-executor.5
27877 17462 415 0 3 0x82 nanoslp syz-executor.3
87528 88697 415 0 3 0x82 nanoslp syz-executor.0
415 267336 4944 0 3 0x2000082 kqread syz-fuzzer
415 263416 4944 0 3 0x6000082 nanoslp syz-fuzzer
415 518970 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 200061 4944 0 3 0x6000082 wait syz-fuzzer
415 25427 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 247047 4944 0 3 0x6000082 wait syz-fuzzer
415 44200 4944 0 3 0x6000082 wait syz-fuzzer
415 350181 4944 0 3 0x6000082 wait syz-fuzzer
415 237208 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 139808 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 300586 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 218214 4944 0 3 0x6000082 wait syz-fuzzer
415 523296 4944 0 3 0x6000082 wait syz-fuzzer
415 389926 4944 0 3 0x6000082 wait syz-fuzzer
415 446670 4944 0 3 0x6000082 wait syz-fuzzer
4944 348323 35810 0 3 0x10008a sigsusp ksh
35810 491999 77068 0 3 0x9a kqread sshd
90354 112621 1 0 3 0x100083 ttyin getty
77068 286645 1 0 3 0x88 kqread sshd
30429 42944 62180 74 3 0x1100092 bpf pflogd
62180 499595 1 0 3 0x80 netio pflogd
92822 360985 67665 73 3 0x1100090 kqread syslogd
67665 29763 1 0 3 0x100082 netio syslogd
30523 54753 1 0 3 0x100080 kqread resolvd
17720 399364 66640 77 3 0x100092 kqread dhcpleased
11515 22108 66640 77 3 0x100092 kqread dhcpleased
66640 79691 1 0 3 0x80 kqread dhcpleased
31637 85186 0 0 3 0x14200 bored smr
86310 498722 0 0 2 0x14200 zerothread
23103 320960 0 0 3 0x14200 aiodoned aiodoned
39354 122000 0 0 3 0x14200 syncer update
53631 293314 0 0 3 0x14200 cleaner cleaner
70883 362172 0 0 3 0x14200 reaper reaper
49721 20420 0 0 3 0x14200 pgdaemon pagedaemon
51096 119659 0 0 3 0x14200 bored viomb
39642 309072 0 0 3 0x40014200 acpi0 acpi0
55739 65767 0 0 3 0x40014200 idle1
11736 511529 0 0 3 0x14200 bored softnet3
46572 365322 0 0 3 0x14200 bored softnet2
25889 430907 0 0 3 0x14200 bored softnet1
29445 267967 0 0 3 0x14200 bored softnet0
9903 197994 0 0 3 0x14200 bored systqmp
91992 351290 0 0 3 0x14200 bored systq
57933 472536 0 0 3 0x14200 tmoslp softclockmp
68710 29132 0 0 3 0x40014200 tmoslp softclock
34345 58313 0 0 3 0x40014200 idle0
1 457882 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5 sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 83516 (syz-executor.7) thread 0xffff8000211da818 (461919)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d80f00)
#0 witness_lock+0x447
#1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline]
#1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:623
#2 Xsyscall+0x128
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5 sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10192 6484K 6937K 78643K 11590 0
pcb 13 8K 8K 78643K 25 0
rtable 234 6K 6K 78643K 449 0
pf 32 9K 10K 78643K 49 0
ifaddr 45 15K 15K 78643K 59 0
ifgroup 55 2K 2K 78643K 67 0
counters 60 35K 35K 78643K 66 0
ioctlops 0 0K 4K 78643K 1503 0
iov 0 0K 14K 78643K 18 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1290 81K 81K 78643K 1417 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 13 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 17 61K 93K 78643K 383 0
proc 68 91K 128K 78643K 620 0
subproc 104 6K 6K 78643K 143 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 12 0
in_multi 99 7K 7K 78643K 135 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 37 175K 175K 78643K 37 0
exec 0 0K 1K 78643K 433 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 357 147K 147K 78643K 6057 0
UVM aobj 9 2K 2K 78643K 12 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 22 0
NDP 12 0K 1K 78643K 37 0
temp 33 5906K 5983K 78643K 6589 0
kqueue 12 18K 24K 78643K 38 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 55 0 52 1 0 1 1 0 8 0
rtentry 112 144 0 34 4 0 4 4 0 8 0
unpcb 144 324 0 305 4 0 4 4 0 8 3
syncache 304 4 0 4 1 1 0 1 0 8 0
tcpqe 32 503 0 503 4 4 0 3 0 8 0
tcpcb 808 29 0 23 2 0 2 2 0 8 0
arp 120 24 0 6 1 0 1 1 0 8 0
inpcb 368 130 0 120 2 0 2 2 0 8 1
nd6 136 33 0 9 1 0 1 1 0 8 0
kcovpl 48 11 0 3 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 26 0 2 1 0 1 1 0 8 0
pfstkey 128 26 0 2 1 0 1 1 0 8 0
pfstate 376 26 0 2 3 0 3 3 0 8 0
pfrule 1344 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 256 585 0 132 29 0 29 29 0 8 0
art_table 32 586 0 132 4 0 4 4 0 8 0
art_node 16 143 0 43 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 11 0 1 1 0 1 1 0 8 0
shmpl 112 9 0 3 1 0 1 1 0 8 0
pool(0xffffffff82d8dbd0:shmpl): page inconsistency: page 0xfffffd80784ca000; 28 on list, 6 missing, 35 items per page
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1764 0 313 91 0 91 91 0 8 0
ffsino 272 1764 0 313 97 0 97 97 0 8 0
nchpl 144 2329 0 672 63 0 63 63 0 8 0
uvmvnodes 80 1985 0 0 41 0 41 41 0 8 0
vnodes 216 1985 0 0 111 0 111 111 0 8 0
namei 1024 8583 0 8583 2 1 1 2 0 8 1
percpumem 16 46 0 3 1 0 1 1 0 8 0
vcpupl 2048 8 0 0 1 0 1 1 0 8 0
vmpool 696 8 0 0 1 0 1 1 0 8 0
kstatmem 264 30 0 6 2 0 2 2 0 8 0
scxspl 216 9295 0 9295 10 2 8 8 1 8 8
plimitpl 152 40 0 24 1 0 1 1 0 8 0
sigapl 424 704 0 654 8 1 7 7 0 8 0
futexpl 64 1991 0 1983 1 0 1 1 0 8 0
knotepl 120 116 0 0 4 0 4 4 0 8 0
kqueuepl 216 45 0 36 1 0 1 1 0 8 0
pipepl 320 292 0 264 8 0 8 8 0 8 5
fdescpl 496 685 0 655 5 1 4 5 0 8 0
filepl 152 3205 0 2956 15 0 15 15 0 8 5
lockfpl 104 75 0 73 1 0 1 1 0 8 0
lockfspl 48 35 0 33 1 0 1 1 0 8 0
sessionpl 144 27 0 10 1 0 1 1 0 8 0
pgrppl 48 27 0 10 1 0 1 1 0 8 0
ucredpl 104 116 0 103 1 0 1 1 0 8 0
zombiepl 144 655 0 654 1 0 1 1 0 8 0
processpl 1072 704 0 654 4 0 4 4 0 8 0
procpl 680 1110 0 1035 8 1 7 7 0 8 0
sockpl 488 509 0 477 12 0 12 12 0 8 8
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 6 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 365 0 0 45 0 45 45 0 8 0
mtagpl 96 36 0 0 1 0 1 1 0 8 0
mbufpl 256 378 0 0 24 0 24 24 0 8 0
bufpl 288 5593 0 141 390 0 390 390 0 8 0
anonpl 24 213821 0 201394 103 2 101 101 0 186 17
amapchunkpl 152 19516 0 18618 39 0 39 39 0 158 3
amappl16 200 5552 0 5202 31 3 28 31 0 8 8
amappl15 192 14 0 14 1 1 0 1 0 8 0
amappl14 184 170 0 157 2 1 1 2 0 8 0
amappl13 176 13 0 13 1 1 0 1 0 8 0
amappl12 168 1403 0 1372 3 1 2 2 0 8 0
amappl11 160 64 0 49 1 0 1 1 0 8 0
amappl10 152 43 0 34 1 0 1 1 0 8 0
amappl9 144 169 0 167 1 0 1 1 0 8 0
amappl8 136 206 0 157 2 0 2 2 0 8 0
amappl7 128 195 0 168 2 0 2 2 0 8 0
amappl6 120 311 0 302 1 0 1 1 0 8 0
amappl5 112 138 0 127 1 0 1 1 0 8 0
amappl4 104 470 0 440 2 1 1 2 0 8 0
amappl3 96 3918 0 3827 3 0 3 3 0 8 0
amappl2 88 1133 0 1055 3 1 2 3 0 8 0
amappl1 80 11077 0 10512 23 10 13 23 0 8 0
amappl 88 5491 0 5249 6 0 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 11 0 3 1 0 1 1 0 8 0
uaddrrnd 24 693 0 655 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 693 0 655 1 0 1 1 0 8 0
vmmpekpl 168 12009 0 11951 3 0 3 3 0 8 0
vmmpepl 168 65151 0 62835 117 6 111 117 0 357 8
vmsppl 464 692 0 655 5 0 5 5 0 8 0
rwobjpl 56 24716 0 21278 52 3 49 49 0 8 0
pdppl 4096 1394 0 1318 127 49 78 84 0 8 2
pvpl 32 476187 0 458068 358 30 328 358 0 265 166
pmappl 248 692 0 655 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 829 0 53 23 0 23 23 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: 9
ddb{0}> trace
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: -6
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 1066617378e4 Check notBefore/notAfter validity with ASN1_T..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17800498e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=6b6dd0b61a44ffdb0b08
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cd7115c4751a/disk-10666173.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/d37d1958872a/bsd-10666173.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b2aec359b72e/kernel-10666173.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6b6dd0...@syzkaller.appspotmail.com
panic: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
459457 83516 0 0 0 0 syz-executor.7
*461919 83516 0 0 0x4000000 1K syz-executor.7
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
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
*cpu1: pool_do_get: shmpl free list modified: page 0xfffffd80784ca000; item addr 0xfffffd80784ca9a0; offset 0x2c=0xdead410f
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002e4291c0
rbx 0xffff800020d49ba7
rdx 0xffff800000d343c0
rcx 0xffff8000211da818
rax 0xffff800020d48ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xfd206507711f0924
r11 0x1289c3198f28529f
r12 0xffff800020d499a8
r13 0
r14 0
r15 0x1
rip 0xffffffff814b969c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002e4291b0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.7) tid=461919 pid=83516 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=78, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff8000211dad68,0xffff8000211ce570
process=0xffff8000ffff90c8 user=0xffff80002e424000, vmspace=0xfffffd806efc41d8
estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
97856 491079 54945 0 2 0 syz-executor.5
97856 457355 54945 0 3 0x4000080 fsleep syz-executor.5
27376 89829 78574 0 2 0 syz-executor.4
27376 272994 78574 0 3 0x4000080 fsleep syz-executor.4
27376 339879 78574 0 3 0x4000080 fsleep syz-executor.4
27376 361216 78574 0 3 0x4000080 fsleep syz-executor.4
64213 506628 87528 0 2 0 syz-executor.0
64213 220833 87528 0 3 0x4000080 kqread syz-executor.0
52324 78397 49103 0 2 0 syz-executor.1
52324 518221 49103 0 3 0x4000080 fsleep syz-executor.1
52324 135571 49103 0 2 0x4000000 syz-executor.1
29909 275201 94975 0 2 0 syz-executor.6
29909 160639 94975 0 3 0x4000080 fsleep syz-executor.6
83516 459457 76234 0 7 0 syz-executor.7
*83516 461919 76234 0 7 0x4000000 syz-executor.7
92088 376415 4589 0 2 0 syz-executor.2
92088 279304 4589 0 3 0x4000080 fsleep syz-executor.2
92088 239810 4589 0 3 0x4000080 fsleep syz-executor.2
88277 164962 0 0 3 0x14200 bored sosplice
49103 74924 415 0 3 0x82 nanoslp syz-executor.1
4589 498209 415 0 3 0x82 nanoslp syz-executor.2
78574 515143 415 0 3 0x82 nanoslp syz-executor.4
76234 214598 415 0 3 0x82 nanoslp syz-executor.7
94975 60021 415 0 3 0x82 nanoslp syz-executor.6
54945 485965 415 0 3 0x82 nanoslp syz-executor.5
27877 17462 415 0 3 0x82 nanoslp syz-executor.3
87528 88697 415 0 3 0x82 nanoslp syz-executor.0
415 267336 4944 0 3 0x2000082 kqread syz-fuzzer
415 263416 4944 0 3 0x6000082 nanoslp syz-fuzzer
415 518970 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 200061 4944 0 3 0x6000082 wait syz-fuzzer
415 25427 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 247047 4944 0 3 0x6000082 wait syz-fuzzer
415 44200 4944 0 3 0x6000082 wait syz-fuzzer
415 350181 4944 0 3 0x6000082 wait syz-fuzzer
415 237208 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 139808 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 300586 4944 0 3 0x6000082 thrsleep syz-fuzzer
415 218214 4944 0 3 0x6000082 wait syz-fuzzer
415 523296 4944 0 3 0x6000082 wait syz-fuzzer
415 389926 4944 0 3 0x6000082 wait syz-fuzzer
415 446670 4944 0 3 0x6000082 wait syz-fuzzer
4944 348323 35810 0 3 0x10008a sigsusp ksh
35810 491999 77068 0 3 0x9a kqread sshd
90354 112621 1 0 3 0x100083 ttyin getty
77068 286645 1 0 3 0x88 kqread sshd
30429 42944 62180 74 3 0x1100092 bpf pflogd
62180 499595 1 0 3 0x80 netio pflogd
92822 360985 67665 73 3 0x1100090 kqread syslogd
67665 29763 1 0 3 0x100082 netio syslogd
30523 54753 1 0 3 0x100080 kqread resolvd
17720 399364 66640 77 3 0x100092 kqread dhcpleased
11515 22108 66640 77 3 0x100092 kqread dhcpleased
66640 79691 1 0 3 0x80 kqread dhcpleased
31637 85186 0 0 3 0x14200 bored smr
86310 498722 0 0 2 0x14200 zerothread
23103 320960 0 0 3 0x14200 aiodoned aiodoned
39354 122000 0 0 3 0x14200 syncer update
53631 293314 0 0 3 0x14200 cleaner cleaner
70883 362172 0 0 3 0x14200 reaper reaper
49721 20420 0 0 3 0x14200 pgdaemon pagedaemon
51096 119659 0 0 3 0x14200 bored viomb
39642 309072 0 0 3 0x40014200 acpi0 acpi0
55739 65767 0 0 3 0x40014200 idle1
11736 511529 0 0 3 0x14200 bored softnet3
46572 365322 0 0 3 0x14200 bored softnet2
25889 430907 0 0 3 0x14200 bored softnet1
29445 267967 0 0 3 0x14200 bored softnet0
9903 197994 0 0 3 0x14200 bored systqmp
91992 351290 0 0 3 0x14200 bored systq
57933 472536 0 0 3 0x14200 tmoslp softclockmp
68710 29132 0 0 3 0x40014200 tmoslp softclock
34345 58313 0 0 3 0x40014200 idle0
1 457882 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5 sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 83516 (syz-executor.7) thread 0xffff8000211da818 (461919)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d80f00)
#0 witness_lock+0x447
#1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline]
#1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:623
#2 Xsyscall+0x128
exclusive mutex shmpl r = 0 (0xffffffff82d8dbe0)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
#5 sys_shmget+0x13b sys/kern/sysv_shm.c:480
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10192 6484K 6937K 78643K 11590 0
pcb 13 8K 8K 78643K 25 0
rtable 234 6K 6K 78643K 449 0
pf 32 9K 10K 78643K 49 0
ifaddr 45 15K 15K 78643K 59 0
ifgroup 55 2K 2K 78643K 67 0
counters 60 35K 35K 78643K 66 0
ioctlops 0 0K 4K 78643K 1503 0
iov 0 0K 14K 78643K 18 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1290 81K 81K 78643K 1417 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 13 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 17 61K 93K 78643K 383 0
proc 68 91K 128K 78643K 620 0
subproc 104 6K 6K 78643K 143 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 12 0
in_multi 99 7K 7K 78643K 135 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 37 175K 175K 78643K 37 0
exec 0 0K 1K 78643K 433 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 357 147K 147K 78643K 6057 0
UVM aobj 9 2K 2K 78643K 12 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 22 0
NDP 12 0K 1K 78643K 37 0
temp 33 5906K 5983K 78643K 6589 0
kqueue 12 18K 24K 78643K 38 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 55 0 52 1 0 1 1 0 8 0
rtentry 112 144 0 34 4 0 4 4 0 8 0
unpcb 144 324 0 305 4 0 4 4 0 8 3
syncache 304 4 0 4 1 1 0 1 0 8 0
tcpqe 32 503 0 503 4 4 0 3 0 8 0
tcpcb 808 29 0 23 2 0 2 2 0 8 0
arp 120 24 0 6 1 0 1 1 0 8 0
inpcb 368 130 0 120 2 0 2 2 0 8 1
nd6 136 33 0 9 1 0 1 1 0 8 0
kcovpl 48 11 0 3 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 26 0 2 1 0 1 1 0 8 0
pfstkey 128 26 0 2 1 0 1 1 0 8 0
pfstate 376 26 0 2 3 0 3 3 0 8 0
pfrule 1344 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 256 585 0 132 29 0 29 29 0 8 0
art_table 32 586 0 132 4 0 4 4 0 8 0
art_node 16 143 0 43 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 11 0 1 1 0 1 1 0 8 0
shmpl 112 9 0 3 1 0 1 1 0 8 0
pool(0xffffffff82d8dbd0:shmpl): page inconsistency: page 0xfffffd80784ca000; 28 on list, 6 missing, 35 items per page
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1764 0 313 91 0 91 91 0 8 0
ffsino 272 1764 0 313 97 0 97 97 0 8 0
nchpl 144 2329 0 672 63 0 63 63 0 8 0
uvmvnodes 80 1985 0 0 41 0 41 41 0 8 0
vnodes 216 1985 0 0 111 0 111 111 0 8 0
namei 1024 8583 0 8583 2 1 1 2 0 8 1
percpumem 16 46 0 3 1 0 1 1 0 8 0
vcpupl 2048 8 0 0 1 0 1 1 0 8 0
vmpool 696 8 0 0 1 0 1 1 0 8 0
kstatmem 264 30 0 6 2 0 2 2 0 8 0
scxspl 216 9295 0 9295 10 2 8 8 1 8 8
plimitpl 152 40 0 24 1 0 1 1 0 8 0
sigapl 424 704 0 654 8 1 7 7 0 8 0
futexpl 64 1991 0 1983 1 0 1 1 0 8 0
knotepl 120 116 0 0 4 0 4 4 0 8 0
kqueuepl 216 45 0 36 1 0 1 1 0 8 0
pipepl 320 292 0 264 8 0 8 8 0 8 5
fdescpl 496 685 0 655 5 1 4 5 0 8 0
filepl 152 3205 0 2956 15 0 15 15 0 8 5
lockfpl 104 75 0 73 1 0 1 1 0 8 0
lockfspl 48 35 0 33 1 0 1 1 0 8 0
sessionpl 144 27 0 10 1 0 1 1 0 8 0
pgrppl 48 27 0 10 1 0 1 1 0 8 0
ucredpl 104 116 0 103 1 0 1 1 0 8 0
zombiepl 144 655 0 654 1 0 1 1 0 8 0
processpl 1072 704 0 654 4 0 4 4 0 8 0
procpl 680 1110 0 1035 8 1 7 7 0 8 0
sockpl 488 509 0 477 12 0 12 12 0 8 8
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 6 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 365 0 0 45 0 45 45 0 8 0
mtagpl 96 36 0 0 1 0 1 1 0 8 0
mbufpl 256 378 0 0 24 0 24 24 0 8 0
bufpl 288 5593 0 141 390 0 390 390 0 8 0
anonpl 24 213821 0 201394 103 2 101 101 0 186 17
amapchunkpl 152 19516 0 18618 39 0 39 39 0 158 3
amappl16 200 5552 0 5202 31 3 28 31 0 8 8
amappl15 192 14 0 14 1 1 0 1 0 8 0
amappl14 184 170 0 157 2 1 1 2 0 8 0
amappl13 176 13 0 13 1 1 0 1 0 8 0
amappl12 168 1403 0 1372 3 1 2 2 0 8 0
amappl11 160 64 0 49 1 0 1 1 0 8 0
amappl10 152 43 0 34 1 0 1 1 0 8 0
amappl9 144 169 0 167 1 0 1 1 0 8 0
amappl8 136 206 0 157 2 0 2 2 0 8 0
amappl7 128 195 0 168 2 0 2 2 0 8 0
amappl6 120 311 0 302 1 0 1 1 0 8 0
amappl5 112 138 0 127 1 0 1 1 0 8 0
amappl4 104 470 0 440 2 1 1 2 0 8 0
amappl3 96 3918 0 3827 3 0 3 3 0 8 0
amappl2 88 1133 0 1055 3 1 2 3 0 8 0
amappl1 80 11077 0 10512 23 10 13 23 0 8 0
amappl 88 5491 0 5249 6 0 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 11 0 3 1 0 1 1 0 8 0
uaddrrnd 24 693 0 655 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 693 0 655 1 0 1 1 0 8 0
vmmpekpl 168 12009 0 11951 3 0 3 3 0 8 0
vmmpepl 168 65151 0 62835 117 6 111 117 0 357 8
vmsppl 464 692 0 655 5 0 5 5 0 8 0
rwobjpl 56 24716 0 21278 52 3 49 49 0 8 0
pdppl 4096 1394 0 1318 127 49 78 84 0 8 2
pvpl 32 476187 0 458068 358 30 328 358 0 265 166
pmappl 248 692 0 655 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 829 0 53 23 0 23 23 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: 9
ddb{0}> trace
x86_ipi_db(ffffffff82bfdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d80cf8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7606d91ecb80, count: -6
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82813cd5) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82d8dbd0,1,ffff80002e429378) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82d8dbd0,1) at pool_get+0xed sys/kern/subr_pool.c:582
shmget_allocate_segment(ffff8000211da818,ffff80002e429500,1a9,ffff80002e429550) at shmget_allocate_segment+0x15b sys/kern/sysv_shm.c:417
sys_shmget(ffff8000211da818,ffff80002e429500,ffff80002e429550) at sys_shmget+0x13b sys/kern/sysv_shm.c:480
syscall(ffff80002e4295d0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e4295d0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x856c12368a0, count: -8
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Feb 11, 2024, 5:36:11 PMFeb 11
to syzkaller-o...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
Reply all
Reply to author
Forward
0 new messages