panic:p apnoiocl_: ckacerhnee_ilt edima_mgnaogsict_icc haecssk:er tmbiuofn "p!l_ kcperun elf_releoc lki_shte lmdo(d)if"i
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syzbot
Jun 25, 2020, 5:26:13 AM6/25/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 3209772d kernel: use gettime(9)/getuptime(9) in lieu of ti..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=136542f9100000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=dbfbac59747026c68ce0
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+dbfbac...@syzkaller.appspotmail.com
panic:p apnoiocl_: ckacerhnee_ilt edima_mgnaogsict_icc haecssk:er tmbiuofn "p!l_ kcperun elf_releoc lki_shte lmdo(d)if"i edf:a iiltedem: afdildre 0"x/sfyfzfkfafdll8e0r6/d6ma8fn9a0ge0+rs16/ m0uxl0t!ic=0oxrc4e0/2k5e8r6n1e0l/7sdy0s0/33k0er
n/Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
406213 59376 0 0 0 0 syz-executor.1
*111629 48507 0 0x12 0 1 sshd
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: 4
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 0xfffffd806d68f900+16 0x0!=0xc402586107d00330
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: -11
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020e62db0
rbx 0xffff800020e62e60
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff817e707f kprintf+0x16f
r9 0x1
r10 0x2
r11 0xe14e9a9d3b6debc8
r12 0x3000000008
r13 0xffff800020e62dc0
r14 0x100
r15 0x1
rip 0xffffffff81354558 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020e62da0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (sshd) pid=111629 stat=onproc
flags process=12<EXEC,SUGID,8ORPHAN> proc=0
pri=50, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020e40280,0xffff800020e40020
process=0xffff800020e383f0 user=0xffff800020e5e000, vmspace=0xfffffd806e8f7458
estcpu=0, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
59376 406213 45336 0 7 0 syz-executor.1
45336 393749 18212 0 2 0x2 syz-executor.1
61924 505139 0 0 3 0x14280 nfsidl nfsio
13249 473797 0 0 3 0x14280 nfsidl nfsio
7889 202311 0 0 3 0x14280 nfsidl nfsio
43152 239479 0 0 3 0x14280 nfsidl nfsio
76253 246287 0 0 3 0x14280 nfsidl nfsio
67070 401542 0 0 3 0x14280 nfsidl nfsio
41434 104890 0 0 3 0x14280 nfsidl nfsio
85851 184874 0 0 3 0x14280 nfsidl nfsio
37458 123824 0 0 3 0x14280 nfsidl nfsio
61804 244172 0 0 3 0x14280 nfsidl nfsio
6110 369341 0 0 3 0x14280 nfsidl nfsio
57957 395712 0 0 3 0x14280 nfsidl nfsio
79601 408521 0 0 3 0x14280 nfsidl nfsio
58831 355846 0 0 3 0x14280 nfsidl nfsio
59571 111416 0 0 3 0x14280 nfsidl nfsio
87377 73473 0 0 3 0x14280 nfsidl nfsio
81004 5130 0 0 3 0x14280 nfsidl nfsio
13284 461135 0 0 3 0x14280 nfsidl nfsio
40226 347005 0 0 3 0x14280 nfsidl nfsio
28129 258880 0 0 3 0x14280 nfsidl nfsio
5526 60569 0 0 3 0x14200 bored sosplice
11995 470921 18212 0 2 0x2 syz-executor.0
18212 405500 80750 0 2 0x82 syz-fuzzer
18212 492512 80750 0 2 0x4000482 syz-fuzzer
18212 394316 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 358635 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 420439 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 444302 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 278435 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 413541 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 173670 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 51851 80750 0 2 0x4000082 syz-fuzzer
80750 323812 48507 0 3 0x10008a pause ksh
*48507 111629 27801 0 7 0x12 sshd
8363 463410 1 0 3 0x100083 ttyin getty
27801 173814 1 0 3 0x80 select sshd
21076 416278 39397 74 3 0x100092 bpf pflogd
39397 272037 1 0 3 0x80 netio pflogd
35644 260519 87031 73 3 0x100090 kqread syslogd
87031 193803 1 0 3 0x100082 netio syslogd
22094 344075 1 77 3 0x100090 poll dhclient
97711 272332 1 0 3 0x80 poll dhclient
13317 242110 0 0 3 0x14200 bored smr
88885 147545 0 0 3 0x14200 pgzero zerothread
29942 435733 0 0 3 0x14200 aiodoned aiodoned
79098 278512 0 0 3 0x14200 syncer update
30565 179098 0 0 3 0x14200 cleaner cleaner
59070 79611 0 0 3 0x14200 reaper reaper
67016 134036 0 0 3 0x14200 pgdaemon pagedaemon
84552 256263 0 0 3 0x14200 bored crynlk
58739 81168 0 0 3 0x14200 bored crypto
52259 1845 0 0 3 0x40014200 acpi0 acpi0
53951 261704 0 0 3 0x40014200 idle1
19787 502593 0 0 3 0x14200 bored softnet
53157 231440 0 0 3 0x14200 bored systqmp
84538 11518 0 0 3 0x14200 bored systq
55556 156112 0 0 3 0x40014200 bored softclock
67423 295669 0 0 3 0x40014200 idle0
1 72508 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9535 6432K 6949K 78643K 11220 0
pcb 13 8K 8K 78643K 64 0
rtable 105 6K 7K 78643K 417 0
ifaddr 88 17K 17K 78643K 161 0
counters 43 33K 34K 78643K 61 0
ioctlops 0 0K 4K 78643K 1514 0
iov 0 0K 12K 78643K 47 0
mount 1 1K 1K 78643K 1 0
vnodes 1232 77K 78K 78643K 1439 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 14 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 105 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 5 13K 25K 78643K 426 0
sigio 0 0K 0K 78643K 23 0
proc 61 63K 95K 78643K 518 0
subproc 32 2K 2K 78643K 51 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 45 0
in_multi 63 3K 3K 78643K 137 0
ether_multi 1 0K 0K 78643K 12 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 1K 78643K 265 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 125 72K 88K 78643K 2357 0
UVM aobj 25 6K 6K 78643K 29 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 47 0
NDP 14 0K 0K 78643K 30 0
temp 112 3857K 3922K 78643K 6516 0
kqueue 3 4K 16K 78643K 25 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
arp 64 10 0 4 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 31 0 29 1 0 1 1 0 8 0
rtentry 112 79 0 41 2 0 2 2 0 8 0
unpcb 120 262 0 251 1 0 1 1 0 8 0
syncache 264 6 0 6 2 2 0 1 0 8 0
tcpcb 544 154 0 150 1 0 1 1 0 8 0
inpcb 296 433 0 425 2 1 1 2 0 8 0
nd6 48 15 0 12 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
ppxss 1128 3 0 3 1 1 0 1 0 8 0
pffrag 232 3 0 3 1 0 1 1 0 482 1
pffrnode 88 3 0 3 1 0 1 1 0 8 1
pffrent 40 94 0 94 1 0 1 1 0 8 1
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 23 0 20 2 1 1 1 0 8 0
pfstitem 24 32 0 15 1 0 1 1 0 8 0
pfstkey 112 32 0 15 1 0 1 1 0 8 0
pfstate 328 32 0 14 2 0 2 2 0 8 0
pfrule 1360 31 0 22 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 299 0 135 15 4 11 15 0 8 0
art_table 32 300 0 135 2 0 2 2 0 8 0
art_node 16 78 0 43 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 93 0 83 1 0 1 1 0 8 0
shmpl 112 27 0 4 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1946 0 540 89 0 89 89 0 8 0
ffsino 272 1946 0 540 95 0 95 95 0 8 0
nchpl 144 2930 0 1332 60 0 60 60 0 8 0
uvmvnodes 72 2158 0 0 40 0 40 40 0 8 0
vnodes 208 2158 0 0 114 0 114 114 0 8 0
namei 1024 8164 0 8164 1 0 1 1 0 8 1
percpumem 16 41 0 9 1 0 1 1 0 8 0
vcpupl 1984 7 0 0 1 0 1 1 0 8 0
vmpool 560 11 0 4 1 0 1 1 0 8 0
pfiaddrpl 120 10 0 6 2 1 1 1 0 8 0
scxspl 192 8582 0 8582 10 7 3 7 0 8 3
plimitpl 152 36 0 28 1 0 1 1 0 8 0
sigapl 424 659 0 607 6 0 6 6 0 8 0
futexpl 56 5958 0 5958 1 0 1 1 0 8 1
knotepl 112 96 0 77 1 0 1 1 0 8 0
kqueuepl 144 78 0 74 1 0 1 1 0 8 0
pipelkpl 48 156 0 146 1 0 1 1 0 8 0
pipepl 120 312 0 293 2 1 1 2 0 8 0
fdescpl 496 623 0 607 3 0 3 3 0 8 0
filepl 152 4031 0 3930 7 2 5 7 0 8 1
lockfpl 104 110 0 109 1 0 1 1 0 8 0
lockfspl 48 44 0 43 1 0 1 1 0 8 0
sessionpl 112 19 0 8 1 0 1 1 0 8 0
pgrppl 48 19 0 8 1 0 1 1 0 8 0
ucredpl 96 393 0 383 1 0 1 1 0 8 0
zombiepl 144 607 0 607 1 0 1 1 0 8 1
processpl 984 659 0 607 7 0 7 7 0 8 0
procpl 624 1541 0 1480 6 0 6 6 0 8 0
sosppl 128 2 0 2 1 1 0 1 0 8 0
sockpl 400 730 0 710 5 1 4 4 0 8 1
mcl64k 65536 7 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 5 0 0 1 0 1 1 0 8 0
mcl9k 9216 5 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 9 0 0 2 0 2 2 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 258 0 0 32 0 32 32 0 8 0
mtagpl 96 23 0 0 1 0 1 1 0 8 0
mbufpl 256 284 0 0 17 0 17 17 0 8 0
bufpl 280 4493 0 135 312 0 312 312 0 8 0
anonpl 16 77656 0 61411 80 1 79 79 0 124 9
amapchunkpl 152 4018 0 3872 24 4 20 20 0 158 13
amappl16 192 2790 0 1894 64 10 54 58 0 8 8
amappl15 184 283 0 279 1 0 1 1 0 8 0
amappl14 176 119 0 116 1 0 1 1 0 8 0
amappl13 168 35 0 32 1 0 1 1 0 8 0
amappl12 160 114 0 109 1 0 1 1 0 8 0
amappl11 152 343 0 326 1 0 1 1 0 8 0
amappl10 144 24 0 18 1 0 1 1 0 8 0
amappl9 136 395 0 393 1 0 1 1 0 8 0
amappl8 128 380 0 343 2 0 2 2 0 8 0
amappl7 120 125 0 112 1 0 1 1 0 8 0
amappl6 112 201 0 198 1 0 1 1 0 8 0
amappl5 104 335 0 319 1 0 1 1 0 8 0
amappl4 96 683 0 654 1 0 1 1 0 8 0
amappl3 88 126 0 121 1 0 1 1 0 8 0
amappl2 80 4157 0 4092 2 0 2 2 0 8 0
amappl1 72 23481 0 23049 23 13 10 18 0 8 0
amappl 80 1801 0 1755 2 0 2 2 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 18 0 17 1 0 1 1 0 8 0
aobjpl 64 28 0 4 1 0 1 1 0 8 0
uaddrrnd 24 634 0 611 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 634 0 611 1 0 1 1 0 8 0
vmmpekpl 168 8674 0 8632 3 0 3 3 0 8 0
vmmpepl 168 82726 0 80678 135 20 115 126 0 357 19
vmsppl 368 633 0 611 3 0 3 3 0 8 0
pdppl 4096 1275 0 1229 7 0 7 7 0 8 0
pvpl 32 237711 0 218535 190 3 187 187 0 265 21
pmappl 232 633 0 611 2 0 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 284 0 8 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff826eeff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639
comcnputc(800,2f) at comcnputc+0x1c8 sys/dev/ic/com.c:1260
cnputc(2f) at cnputc+0x4c sys/dev/cons.c:239
kputchar(2f,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff823fbe1d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823fbe1d) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff82467fc8,ffffffff8244f227,29e,ffffffff8242cc5e) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: 4
ddb{0}> trace
x86_ipi_db(ffffffff826eeff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639
comcnputc(800,2f) at comcnputc+0x1c8 sys/dev/ic/com.c:1260
cnputc(2f) at cnputc+0x4c sys/dev/cons.c:239
kputchar(2f,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff823fbe1d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823fbe1d) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff82467fc8,ffffffff8244f227,29e,ffffffff8242cc5e) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: -11
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: 4
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: -11
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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syzbot found the following crash on:
HEAD commit: 3209772d kernel: use gettime(9)/getuptime(9) in lieu of ti..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=136542f9100000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=dbfbac59747026c68ce0
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+dbfbac...@syzkaller.appspotmail.com
panic:p apnoiocl_: ckacerhnee_ilt edima_mgnaogsict_icc haecssk:er tmbiuofn "p!l_ kcperun elf_releoc lki_shte lmdo(d)if"i edf:a iiltedem: afdildre 0"x/sfyfzfkfafdll8e0r6/d6ma8fn9a0ge0+rs16/ m0uxl0t!ic=0oxrc4e0/2k5e8r6n1e0l/7sdy0s0/33k0er
n/Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
406213 59376 0 0 0 0 syz-executor.1
*111629 48507 0 0x12 0 1 sshd
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: 4
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 0xfffffd806d68f900+16 0x0!=0xc402586107d00330
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: -11
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020e62db0
rbx 0xffff800020e62e60
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff817e707f kprintf+0x16f
r9 0x1
r10 0x2
r11 0xe14e9a9d3b6debc8
r12 0x3000000008
r13 0xffff800020e62dc0
r14 0x100
r15 0x1
rip 0xffffffff81354558 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020e62da0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (sshd) pid=111629 stat=onproc
flags process=12<EXEC,SUGID,8ORPHAN> proc=0
pri=50, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020e40280,0xffff800020e40020
process=0xffff800020e383f0 user=0xffff800020e5e000, vmspace=0xfffffd806e8f7458
estcpu=0, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
59376 406213 45336 0 7 0 syz-executor.1
45336 393749 18212 0 2 0x2 syz-executor.1
61924 505139 0 0 3 0x14280 nfsidl nfsio
13249 473797 0 0 3 0x14280 nfsidl nfsio
7889 202311 0 0 3 0x14280 nfsidl nfsio
43152 239479 0 0 3 0x14280 nfsidl nfsio
76253 246287 0 0 3 0x14280 nfsidl nfsio
67070 401542 0 0 3 0x14280 nfsidl nfsio
41434 104890 0 0 3 0x14280 nfsidl nfsio
85851 184874 0 0 3 0x14280 nfsidl nfsio
37458 123824 0 0 3 0x14280 nfsidl nfsio
61804 244172 0 0 3 0x14280 nfsidl nfsio
6110 369341 0 0 3 0x14280 nfsidl nfsio
57957 395712 0 0 3 0x14280 nfsidl nfsio
79601 408521 0 0 3 0x14280 nfsidl nfsio
58831 355846 0 0 3 0x14280 nfsidl nfsio
59571 111416 0 0 3 0x14280 nfsidl nfsio
87377 73473 0 0 3 0x14280 nfsidl nfsio
81004 5130 0 0 3 0x14280 nfsidl nfsio
13284 461135 0 0 3 0x14280 nfsidl nfsio
40226 347005 0 0 3 0x14280 nfsidl nfsio
28129 258880 0 0 3 0x14280 nfsidl nfsio
5526 60569 0 0 3 0x14200 bored sosplice
11995 470921 18212 0 2 0x2 syz-executor.0
18212 405500 80750 0 2 0x82 syz-fuzzer
18212 492512 80750 0 2 0x4000482 syz-fuzzer
18212 394316 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 358635 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 420439 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 444302 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 278435 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 413541 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 173670 80750 0 3 0x4000082 thrsleep syz-fuzzer
18212 51851 80750 0 2 0x4000082 syz-fuzzer
80750 323812 48507 0 3 0x10008a pause ksh
*48507 111629 27801 0 7 0x12 sshd
8363 463410 1 0 3 0x100083 ttyin getty
27801 173814 1 0 3 0x80 select sshd
21076 416278 39397 74 3 0x100092 bpf pflogd
39397 272037 1 0 3 0x80 netio pflogd
35644 260519 87031 73 3 0x100090 kqread syslogd
87031 193803 1 0 3 0x100082 netio syslogd
22094 344075 1 77 3 0x100090 poll dhclient
97711 272332 1 0 3 0x80 poll dhclient
13317 242110 0 0 3 0x14200 bored smr
88885 147545 0 0 3 0x14200 pgzero zerothread
29942 435733 0 0 3 0x14200 aiodoned aiodoned
79098 278512 0 0 3 0x14200 syncer update
30565 179098 0 0 3 0x14200 cleaner cleaner
59070 79611 0 0 3 0x14200 reaper reaper
67016 134036 0 0 3 0x14200 pgdaemon pagedaemon
84552 256263 0 0 3 0x14200 bored crynlk
58739 81168 0 0 3 0x14200 bored crypto
52259 1845 0 0 3 0x40014200 acpi0 acpi0
53951 261704 0 0 3 0x40014200 idle1
19787 502593 0 0 3 0x14200 bored softnet
53157 231440 0 0 3 0x14200 bored systqmp
84538 11518 0 0 3 0x14200 bored systq
55556 156112 0 0 3 0x40014200 bored softclock
67423 295669 0 0 3 0x40014200 idle0
1 72508 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9535 6432K 6949K 78643K 11220 0
pcb 13 8K 8K 78643K 64 0
rtable 105 6K 7K 78643K 417 0
ifaddr 88 17K 17K 78643K 161 0
counters 43 33K 34K 78643K 61 0
ioctlops 0 0K 4K 78643K 1514 0
iov 0 0K 12K 78643K 47 0
mount 1 1K 1K 78643K 1 0
vnodes 1232 77K 78K 78643K 1439 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 14 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 105 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 5 13K 25K 78643K 426 0
sigio 0 0K 0K 78643K 23 0
proc 61 63K 95K 78643K 518 0
subproc 32 2K 2K 78643K 51 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 45 0
in_multi 63 3K 3K 78643K 137 0
ether_multi 1 0K 0K 78643K 12 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 1K 78643K 265 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 125 72K 88K 78643K 2357 0
UVM aobj 25 6K 6K 78643K 29 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 47 0
NDP 14 0K 0K 78643K 30 0
temp 112 3857K 3922K 78643K 6516 0
kqueue 3 4K 16K 78643K 25 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
arp 64 10 0 4 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 31 0 29 1 0 1 1 0 8 0
rtentry 112 79 0 41 2 0 2 2 0 8 0
unpcb 120 262 0 251 1 0 1 1 0 8 0
syncache 264 6 0 6 2 2 0 1 0 8 0
tcpcb 544 154 0 150 1 0 1 1 0 8 0
inpcb 296 433 0 425 2 1 1 2 0 8 0
nd6 48 15 0 12 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
ppxss 1128 3 0 3 1 1 0 1 0 8 0
pffrag 232 3 0 3 1 0 1 1 0 482 1
pffrnode 88 3 0 3 1 0 1 1 0 8 1
pffrent 40 94 0 94 1 0 1 1 0 8 1
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 23 0 20 2 1 1 1 0 8 0
pfstitem 24 32 0 15 1 0 1 1 0 8 0
pfstkey 112 32 0 15 1 0 1 1 0 8 0
pfstate 328 32 0 14 2 0 2 2 0 8 0
pfrule 1360 31 0 22 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 299 0 135 15 4 11 15 0 8 0
art_table 32 300 0 135 2 0 2 2 0 8 0
art_node 16 78 0 43 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 93 0 83 1 0 1 1 0 8 0
shmpl 112 27 0 4 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1946 0 540 89 0 89 89 0 8 0
ffsino 272 1946 0 540 95 0 95 95 0 8 0
nchpl 144 2930 0 1332 60 0 60 60 0 8 0
uvmvnodes 72 2158 0 0 40 0 40 40 0 8 0
vnodes 208 2158 0 0 114 0 114 114 0 8 0
namei 1024 8164 0 8164 1 0 1 1 0 8 1
percpumem 16 41 0 9 1 0 1 1 0 8 0
vcpupl 1984 7 0 0 1 0 1 1 0 8 0
vmpool 560 11 0 4 1 0 1 1 0 8 0
pfiaddrpl 120 10 0 6 2 1 1 1 0 8 0
scxspl 192 8582 0 8582 10 7 3 7 0 8 3
plimitpl 152 36 0 28 1 0 1 1 0 8 0
sigapl 424 659 0 607 6 0 6 6 0 8 0
futexpl 56 5958 0 5958 1 0 1 1 0 8 1
knotepl 112 96 0 77 1 0 1 1 0 8 0
kqueuepl 144 78 0 74 1 0 1 1 0 8 0
pipelkpl 48 156 0 146 1 0 1 1 0 8 0
pipepl 120 312 0 293 2 1 1 2 0 8 0
fdescpl 496 623 0 607 3 0 3 3 0 8 0
filepl 152 4031 0 3930 7 2 5 7 0 8 1
lockfpl 104 110 0 109 1 0 1 1 0 8 0
lockfspl 48 44 0 43 1 0 1 1 0 8 0
sessionpl 112 19 0 8 1 0 1 1 0 8 0
pgrppl 48 19 0 8 1 0 1 1 0 8 0
ucredpl 96 393 0 383 1 0 1 1 0 8 0
zombiepl 144 607 0 607 1 0 1 1 0 8 1
processpl 984 659 0 607 7 0 7 7 0 8 0
procpl 624 1541 0 1480 6 0 6 6 0 8 0
sosppl 128 2 0 2 1 1 0 1 0 8 0
sockpl 400 730 0 710 5 1 4 4 0 8 1
mcl64k 65536 7 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 5 0 0 1 0 1 1 0 8 0
mcl9k 9216 5 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 9 0 0 2 0 2 2 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 258 0 0 32 0 32 32 0 8 0
mtagpl 96 23 0 0 1 0 1 1 0 8 0
mbufpl 256 284 0 0 17 0 17 17 0 8 0
bufpl 280 4493 0 135 312 0 312 312 0 8 0
anonpl 16 77656 0 61411 80 1 79 79 0 124 9
amapchunkpl 152 4018 0 3872 24 4 20 20 0 158 13
amappl16 192 2790 0 1894 64 10 54 58 0 8 8
amappl15 184 283 0 279 1 0 1 1 0 8 0
amappl14 176 119 0 116 1 0 1 1 0 8 0
amappl13 168 35 0 32 1 0 1 1 0 8 0
amappl12 160 114 0 109 1 0 1 1 0 8 0
amappl11 152 343 0 326 1 0 1 1 0 8 0
amappl10 144 24 0 18 1 0 1 1 0 8 0
amappl9 136 395 0 393 1 0 1 1 0 8 0
amappl8 128 380 0 343 2 0 2 2 0 8 0
amappl7 120 125 0 112 1 0 1 1 0 8 0
amappl6 112 201 0 198 1 0 1 1 0 8 0
amappl5 104 335 0 319 1 0 1 1 0 8 0
amappl4 96 683 0 654 1 0 1 1 0 8 0
amappl3 88 126 0 121 1 0 1 1 0 8 0
amappl2 80 4157 0 4092 2 0 2 2 0 8 0
amappl1 72 23481 0 23049 23 13 10 18 0 8 0
amappl 80 1801 0 1755 2 0 2 2 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 18 0 17 1 0 1 1 0 8 0
aobjpl 64 28 0 4 1 0 1 1 0 8 0
uaddrrnd 24 634 0 611 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 634 0 611 1 0 1 1 0 8 0
vmmpekpl 168 8674 0 8632 3 0 3 3 0 8 0
vmmpepl 168 82726 0 80678 135 20 115 126 0 357 19
vmsppl 368 633 0 611 3 0 3 3 0 8 0
pdppl 4096 1275 0 1229 7 0 7 7 0 8 0
pvpl 32 237711 0 218535 190 3 187 187 0 265 21
pmappl 232 633 0 611 2 0 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 284 0 8 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff826eeff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639
comcnputc(800,2f) at comcnputc+0x1c8 sys/dev/ic/com.c:1260
cnputc(2f) at cnputc+0x4c sys/dev/cons.c:239
kputchar(2f,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff823fbe1d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823fbe1d) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff82467fc8,ffffffff8244f227,29e,ffffffff8242cc5e) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: 4
ddb{0}> trace
x86_ipi_db(ffffffff826eeff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639
comcnputc(800,2f) at comcnputc+0x1c8 sys/dev/ic/com.c:1260
cnputc(2f) at cnputc+0x4c sys/dev/cons.c:239
kputchar(2f,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052
panic(ffffffff823fbe1d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823fbe1d) at panic+0xf3 sys/kern/subr_prf.c:197
__assert(ffffffff82467fc8,ffffffff8244f227,29e,ffffffff8242cc5e) at __assert+0x2b sys/kern/subr_prf.c:154
proc_trampoline_mp() at proc_trampoline_mp+0x123
end trace frame: 0x0, count: -11
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: 4
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823fdf6d) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff8291f248) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff8291f248,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e63088,0,43b4,ffff800020e63208) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eae0968,0,ffff800020e63208,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:542
dofilewritev(ffff800020e41600,4,ffff800020e63208,0,ffff800020e632f0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020e41600,ffff800020e632a0,ffff800020e632f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020e63370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e63370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8630, count: -11
---
This bug is generated by a bot. It may contain errors.
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Anton Lindqvist
Jun 28, 2020, 4:31:03 AM6/28/20
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: pool: cpu free list modified: mbufpl
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