panic: pool_cache_item_magic_check: mbufpl cpu pfarneiec : likestrn meol didifiagedn:os ititecm aassdderr ti0xonf f"ff!
2 views
Skip to first unread message
syzbot
May 19, 2020, 6:19:14 AM5/19/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 3fb50c38 Offload CCMP (WPA2) encryption and decryption to ..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=12a3c352100000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=fad36a68c7928f8018ed
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+fad36a...@syzkaller.appspotmail.com
panic: pool_cache_item_magic_check: mbufpl cpu pfarneiec : likestrn meol didifiagedn:os ititecm aassdderr ti0xonf f"ff!_fkd8e0r6ned8l9_lf9oc00k_+24he l0dx(cb)"0 fea4fi5lef0d:0 0faie6lbe 3"!=/0syxzckba0el4lefrd/fm6af2n1a1ge6brs3/
muStopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
165803 94455 0 0 0 1 syz-executor.0
*301671 3739 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
end trace frame: 0xffff800022b812c0, 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{0}>
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 0xfffffd806d89f900+24 0xcb0e4f5f000ae6b3!=0xcb0e4fdf6f2116b3
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
soo_ioctl(fffffd806cb5c600,8040691a,ffff800022b812d0,ffff800020ed84f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138
sys_ioctl(ffff800020ed84f8,ffff800022b813e8,ffff800022b81430) at sys_ioctl+0x4a5
syscall(ffff800022b814b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022b814b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x44a2c57b0f0, count: -18
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800022b809e0
rbx 0xffff800022b80a90
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff81639f3f kprintf+0x16f
r9 0x1
r10 0x2
r11 0xc95b002f029cca57
r12 0x3000000008
r13 0xffff800022b809f0
r14 0x100
r15 0x1
rip 0xffffffff811e6368 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800022b809d0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.1) pid=301671 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020ed89d8,0xffff800020ed8c58
process=0xffff800020ece7d0 user=0xffff800022b7c000, vmspace=0xfffffd806e947008
estcpu=36, cpticks=3, pctcpu=0.0
user=0, sys=3, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
94455 165803 81537 0 7 0 syz-executor.0
3739 497845 93436 0 2 0 syz-executor.1
* 3739 301671 93436 0 7 0x4000000 syz-executor.1
3739 159774 93436 0 2 0x4000080 syz-executor.1
3739 457271 93436 0 3 0x4000080 fsleep syz-executor.1
60004 453537 0 0 3 0x14200 bored sosplice
93436 380694 9053 0 3 0x82 nanosleep syz-executor.1
81537 403098 9053 0 3 0x82 nanosleep syz-executor.0
9053 297608 4913 0 3 0x82 kqread syz-fuzzer
9053 69864 4913 0 3 0x4000082 nanosleep syz-fuzzer
9053 83339 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 458964 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 31752 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 211625 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 52553 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 410197 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 37959 4913 0 3 0x4000082 nanosleep syz-fuzzer
9053 264327 4913 0 3 0x4000082 thrsleep syz-fuzzer
4913 154174 88146 0 3 0x10008a pause ksh
88146 318171 55456 0 3 0x92 select sshd
33296 286892 1 0 3 0x100083 ttyin getty
55456 448597 1 0 3 0x80 select sshd
14040 480945 39949 74 3 0x100092 bpf pflogd
39949 215850 1 0 3 0x80 netio pflogd
21291 429114 60176 73 3 0x100090 kqread syslogd
60176 473391 1 0 3 0x100082 netio syslogd
70994 294816 1 77 3 0x100090 poll dhclient
59912 117927 1 0 3 0x80 poll dhclient
58713 163261 0 0 3 0x14200 bored smr
43910 202308 0 0 2 0x14200 zerothread
69192 276575 0 0 3 0x14200 aiodoned aiodoned
73780 474602 0 0 3 0x14200 syncer update
42306 202031 0 0 3 0x14200 cleaner cleaner
79392 224091 0 0 3 0x14200 reaper reaper
35788 102497 0 0 3 0x14200 pgdaemon pagedaemon
54447 58260 0 0 3 0x14200 bored crynlk
70425 495354 0 0 3 0x14200 bored crypto
54760 53191 0 0 3 0x40014200 acpi0 acpi0
83736 190838 0 0 3 0x40014200 idle1
58936 483428 0 0 3 0x14200 bored softnet
58141 455177 0 0 3 0x14200 bored systqmp
32567 40065 0 0 3 0x14200 bored systq
30147 201993 0 0 3 0x40014200 bored softclock
4839 450961 0 0 3 0x40014200 idle0
1 298903 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 3739 (syz-executor.1) thread 0xffff800020ed84f8 (301671)
exclusive rwlock netlock r = 0 (0xffffffff8253d7a8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 in_ioctl_change_ifaddr+0x91
#2 in_ioctl+0x2fb sys/netinet/in.c:246
#3 ifioctl+0xe70 sys/net/if.c:2289
#4 soo_ioctl+0x27c sys/kern/sys_socket.c:138
#5 sys_ioctl+0x4a5
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8264bb98)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 soo_ioctl+0x26a sys/kern/sys_socket.c:138
#2 sys_ioctl+0x4a5
#3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#4 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9508 6426K 6806K 78643K 10914 0
pcb 13 8K 8K 78643K 87 0
rtable 85 3K 3K 78643K 302 0
ifaddr 73 15K 15K 78643K 104 0
counters 43 33K 34K 78643K 49 0
ioctlops 0 0K 4K 78643K 1483 0
iov 0 0K 16K 78643K 28 0
mount 1 1K 1K 78643K 1 0
vnodes 1218 77K 77K 78643K 1317 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 4 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 32 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 6 17K 25K 78643K 222 0
sigio 0 0K 0K 78643K 2 0
proc 63 63K 95K 78643K 450 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 28 0
in_multi 66 3K 3K 78643K 118 0
ether_multi 1 0K 0K 78643K 12 0
mrt 0 0K 0K 78643K 6 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 223 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 126 55K 59K 78643K 1670 0
UVM aobj 12 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 50 0
NDP 10 0K 0K 78643K 19 0
temp 88 3037K 3101K 78643K 3011 0
kqueue 3 4K 6K 78643K 6 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 9 0 2 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 39 0 37 1 0 1 1 0 8 0
rtentry 112 67 0 36 2 0 2 2 0 8 0
unpcb 120 125 0 115 1 0 1 1 0 8 0
syncache 264 5 0 5 2 2 0 1 0 8 0
tcpqe 32 106 0 106 1 1 0 1 0 8 0
tcpcb 544 108 0 101 1 0 1 1 0 8 0
inpcb 280 339 0 329 3 2 1 2 0 8 0
rttmr 72 3 0 3 1 1 0 1 0 8 0
nd6 48 8 0 6 1 0 1 1 0 8 0
ppxss 1128 1 0 1 1 0 1 1 0 8 1
pffrag 232 2 0 2 1 1 0 1 0 482 0
pffrnode 88 2 0 2 1 1 0 1 0 8 0
pffrent 40 6 0 6 2 1 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
pfstitem 24 31 0 17 1 0 1 1 0 8 0
pfstkey 112 31 0 17 1 0 1 1 0 8 0
pfstate 328 31 0 17 2 0 2 2 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 256 312 0 158 13 0 13 13 0 8 1
art_table 32 313 0 158 2 0 2 2 0 8 0
art_node 16 64 0 37 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0
semapl 112 30 0 20 1 0 1 1 0 8 0
shmpl 112 10 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1703 0 298 89 0 89 89 0 8 0
ffsino 272 1703 0 298 94 0 94 94 0 8 0
nchpl 144 2234 0 625 60 0 60 60 0 8 0
uvmvnodes 72 1813 0 0 33 0 33 33 0 8 0
vnodes 208 1813 0 0 96 0 96 96 0 8 0
namei 1024 6107 0 6107 2 1 1 1 0 8 1
percpumem 16 35 0 3 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 4 0 2 1 0 1 1 0 8 0
scxspl 192 6122 0 6122 12 11 1 7 0 8 1
plimitpl 152 30 0 22 1 0 1 1 0 8 0
sigapl 424 438 0 405 4 0 4 4 0 8 0
futexpl 56 3340 0 3339 3 2 1 1 0 8 0
knotepl 112 63 0 44 1 0 1 1 0 8 0
kqueuepl 144 35 0 33 1 0 1 1 0 8 0
pipelkpl 48 123 0 113 1 0 1 1 0 8 0
pipepl 120 246 0 227 2 0 2 2 0 8 1
fdescpl 496 422 0 405 3 0 3 3 0 8 0
filepl 152 2600 0 2497 7 0 7 7 0 8 3
lockfpl 104 154 0 153 1 0 1 1 0 8 0
lockfspl 48 55 0 54 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 221 0 212 1 0 1 1 0 8 0
zombiepl 144 405 0 405 3 2 1 1 0 8 1
processpl 984 438 0 405 5 0 5 5 0 8 0
procpl 624 879 0 834 4 0 4 4 0 8 0
sosppl 128 6 0 6 1 0 1 1 0 8 1
sockpl 400 505 0 483 5 1 4 4 0 8 1
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 4 0 0 1 0 1 1 0 8 0
mcl9k 9216 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 165 0 0 20 0 20 20 0 8 0
mtagpl 80 22 0 0 1 0 1 1 0 8 0
mbufpl 256 236 0 0 12 0 12 12 0 8 0
bufpl 280 3795 0 135 262 0 262 262 0 8 0
anonpl 16 62089 0 47902 76 2 74 74 0 124 16
amapchunkpl 152 2404 0 2264 13 2 11 13 0 158 4
amappl16 192 2345 0 1580 55 8 47 51 0 8 8
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 22 0 18 1 0 1 1 0 8 0
amappl13 168 26 0 24 1 0 1 1 0 8 0
amappl12 160 17 0 12 1 0 1 1 0 8 0
amappl11 152 244 0 226 1 0 1 1 0 8 0
amappl10 144 20 0 14 1 0 1 1 0 8 0
amappl9 136 385 0 384 1 0 1 1 0 8 0
amappl8 128 344 0 316 1 0 1 1 0 8 0
amappl7 120 121 0 108 1 0 1 1 0 8 0
amappl6 112 121 0 115 1 0 1 1 0 8 0
amappl5 104 318 0 302 1 0 1 1 0 8 0
amappl4 96 486 0 459 1 0 1 1 0 8 0
amappl3 88 114 0 108 1 0 1 1 0 8 0
amappl2 80 2413 0 2343 2 0 2 2 0 8 0
amappl1 72 19400 0 18944 23 13 10 18 0 8 0
amappl 80 1145 0 1095 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 11 0 0 1 0 1 1 0 8 0
uaddrrnd 24 426 0 407 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 426 0 407 1 0 1 1 0 8 0
vmmpekpl 168 7236 0 7200 2 0 2 2 0 8 0
vmmpepl 168 58745 0 56737 116 16 100 100 0 357 12
vmsppl 368 425 0 407 2 0 2 2 0 8 0
pdppl 4096 860 0 816 6 0 6 6 0 8 0
pvpl 32 189813 0 172428 178 1 177 177 0 265 36
pmappl 232 425 0 407 3 1 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 260 0 5 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
soo_ioctl(fffffd806cb5c600,8040691a,ffff800022b812d0,ffff800020ed84f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138
sys_ioctl(ffff800020ed84f8,ffff800022b813e8,ffff800022b81430) at sys_ioctl+0x4a5
syscall(ffff800022b814b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022b814b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x44a2c57b0f0, count: -18
ddb{0}> machine ddbcpu 1
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 3fb50c38 Offload CCMP (WPA2) encryption and decryption to ..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=12a3c352100000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=fad36a68c7928f8018ed
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+fad36a...@syzkaller.appspotmail.com
panic: pool_cache_item_magic_check: mbufpl cpu pfarneiec : likestrn meol didifiagedn:os ititecm aassdderr ti0xonf f"ff!_fkd8e0r6ned8l9_lf9oc00k_+24he l0dx(cb)"0 fea4fi5lef0d:0 0faie6lbe 3"!=/0syxzckba0el4lefrd/fm6af2n1a1ge6brs3/
muStopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
165803 94455 0 0 0 1 syz-executor.0
*301671 3739 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
end trace frame: 0xffff800022b812c0, 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{0}>
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 0xfffffd806d89f900+24 0xcb0e4f5f000ae6b3!=0xcb0e4fdf6f2116b3
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
soo_ioctl(fffffd806cb5c600,8040691a,ffff800022b812d0,ffff800020ed84f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138
sys_ioctl(ffff800020ed84f8,ffff800022b813e8,ffff800022b81430) at sys_ioctl+0x4a5
syscall(ffff800022b814b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022b814b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x44a2c57b0f0, count: -18
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800022b809e0
rbx 0xffff800022b80a90
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff81639f3f kprintf+0x16f
r9 0x1
r10 0x2
r11 0xc95b002f029cca57
r12 0x3000000008
r13 0xffff800022b809f0
r14 0x100
r15 0x1
rip 0xffffffff811e6368 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800022b809d0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.1) pid=301671 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020ed89d8,0xffff800020ed8c58
process=0xffff800020ece7d0 user=0xffff800022b7c000, vmspace=0xfffffd806e947008
estcpu=36, cpticks=3, pctcpu=0.0
user=0, sys=3, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
94455 165803 81537 0 7 0 syz-executor.0
3739 497845 93436 0 2 0 syz-executor.1
* 3739 301671 93436 0 7 0x4000000 syz-executor.1
3739 159774 93436 0 2 0x4000080 syz-executor.1
3739 457271 93436 0 3 0x4000080 fsleep syz-executor.1
60004 453537 0 0 3 0x14200 bored sosplice
93436 380694 9053 0 3 0x82 nanosleep syz-executor.1
81537 403098 9053 0 3 0x82 nanosleep syz-executor.0
9053 297608 4913 0 3 0x82 kqread syz-fuzzer
9053 69864 4913 0 3 0x4000082 nanosleep syz-fuzzer
9053 83339 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 458964 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 31752 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 211625 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 52553 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 410197 4913 0 3 0x4000082 thrsleep syz-fuzzer
9053 37959 4913 0 3 0x4000082 nanosleep syz-fuzzer
9053 264327 4913 0 3 0x4000082 thrsleep syz-fuzzer
4913 154174 88146 0 3 0x10008a pause ksh
88146 318171 55456 0 3 0x92 select sshd
33296 286892 1 0 3 0x100083 ttyin getty
55456 448597 1 0 3 0x80 select sshd
14040 480945 39949 74 3 0x100092 bpf pflogd
39949 215850 1 0 3 0x80 netio pflogd
21291 429114 60176 73 3 0x100090 kqread syslogd
60176 473391 1 0 3 0x100082 netio syslogd
70994 294816 1 77 3 0x100090 poll dhclient
59912 117927 1 0 3 0x80 poll dhclient
58713 163261 0 0 3 0x14200 bored smr
43910 202308 0 0 2 0x14200 zerothread
69192 276575 0 0 3 0x14200 aiodoned aiodoned
73780 474602 0 0 3 0x14200 syncer update
42306 202031 0 0 3 0x14200 cleaner cleaner
79392 224091 0 0 3 0x14200 reaper reaper
35788 102497 0 0 3 0x14200 pgdaemon pagedaemon
54447 58260 0 0 3 0x14200 bored crynlk
70425 495354 0 0 3 0x14200 bored crypto
54760 53191 0 0 3 0x40014200 acpi0 acpi0
83736 190838 0 0 3 0x40014200 idle1
58936 483428 0 0 3 0x14200 bored softnet
58141 455177 0 0 3 0x14200 bored systqmp
32567 40065 0 0 3 0x14200 bored systq
30147 201993 0 0 3 0x40014200 bored softclock
4839 450961 0 0 3 0x40014200 idle0
1 298903 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 3739 (syz-executor.1) thread 0xffff800020ed84f8 (301671)
exclusive rwlock netlock r = 0 (0xffffffff8253d7a8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 in_ioctl_change_ifaddr+0x91
#2 in_ioctl+0x2fb sys/netinet/in.c:246
#3 ifioctl+0xe70 sys/net/if.c:2289
#4 soo_ioctl+0x27c sys/kern/sys_socket.c:138
#5 sys_ioctl+0x4a5
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8264bb98)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 soo_ioctl+0x26a sys/kern/sys_socket.c:138
#2 sys_ioctl+0x4a5
#3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#4 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9508 6426K 6806K 78643K 10914 0
pcb 13 8K 8K 78643K 87 0
rtable 85 3K 3K 78643K 302 0
ifaddr 73 15K 15K 78643K 104 0
counters 43 33K 34K 78643K 49 0
ioctlops 0 0K 4K 78643K 1483 0
iov 0 0K 16K 78643K 28 0
mount 1 1K 1K 78643K 1 0
vnodes 1218 77K 77K 78643K 1317 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 4 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 32 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 6 17K 25K 78643K 222 0
sigio 0 0K 0K 78643K 2 0
proc 63 63K 95K 78643K 450 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 28 0
in_multi 66 3K 3K 78643K 118 0
ether_multi 1 0K 0K 78643K 12 0
mrt 0 0K 0K 78643K 6 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 223 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 126 55K 59K 78643K 1670 0
UVM aobj 12 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 50 0
NDP 10 0K 0K 78643K 19 0
temp 88 3037K 3101K 78643K 3011 0
kqueue 3 4K 6K 78643K 6 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 9 0 2 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 39 0 37 1 0 1 1 0 8 0
rtentry 112 67 0 36 2 0 2 2 0 8 0
unpcb 120 125 0 115 1 0 1 1 0 8 0
syncache 264 5 0 5 2 2 0 1 0 8 0
tcpqe 32 106 0 106 1 1 0 1 0 8 0
tcpcb 544 108 0 101 1 0 1 1 0 8 0
inpcb 280 339 0 329 3 2 1 2 0 8 0
rttmr 72 3 0 3 1 1 0 1 0 8 0
nd6 48 8 0 6 1 0 1 1 0 8 0
ppxss 1128 1 0 1 1 0 1 1 0 8 1
pffrag 232 2 0 2 1 1 0 1 0 482 0
pffrnode 88 2 0 2 1 1 0 1 0 8 0
pffrent 40 6 0 6 2 1 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
pfstitem 24 31 0 17 1 0 1 1 0 8 0
pfstkey 112 31 0 17 1 0 1 1 0 8 0
pfstate 328 31 0 17 2 0 2 2 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 256 312 0 158 13 0 13 13 0 8 1
art_table 32 313 0 158 2 0 2 2 0 8 0
art_node 16 64 0 37 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0
semapl 112 30 0 20 1 0 1 1 0 8 0
shmpl 112 10 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1703 0 298 89 0 89 89 0 8 0
ffsino 272 1703 0 298 94 0 94 94 0 8 0
nchpl 144 2234 0 625 60 0 60 60 0 8 0
uvmvnodes 72 1813 0 0 33 0 33 33 0 8 0
vnodes 208 1813 0 0 96 0 96 96 0 8 0
namei 1024 6107 0 6107 2 1 1 1 0 8 1
percpumem 16 35 0 3 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 4 0 2 1 0 1 1 0 8 0
scxspl 192 6122 0 6122 12 11 1 7 0 8 1
plimitpl 152 30 0 22 1 0 1 1 0 8 0
sigapl 424 438 0 405 4 0 4 4 0 8 0
futexpl 56 3340 0 3339 3 2 1 1 0 8 0
knotepl 112 63 0 44 1 0 1 1 0 8 0
kqueuepl 144 35 0 33 1 0 1 1 0 8 0
pipelkpl 48 123 0 113 1 0 1 1 0 8 0
pipepl 120 246 0 227 2 0 2 2 0 8 1
fdescpl 496 422 0 405 3 0 3 3 0 8 0
filepl 152 2600 0 2497 7 0 7 7 0 8 3
lockfpl 104 154 0 153 1 0 1 1 0 8 0
lockfspl 48 55 0 54 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 221 0 212 1 0 1 1 0 8 0
zombiepl 144 405 0 405 3 2 1 1 0 8 1
processpl 984 438 0 405 5 0 5 5 0 8 0
procpl 624 879 0 834 4 0 4 4 0 8 0
sosppl 128 6 0 6 1 0 1 1 0 8 1
sockpl 400 505 0 483 5 1 4 4 0 8 1
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 4 0 0 1 0 1 1 0 8 0
mcl9k 9216 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 165 0 0 20 0 20 20 0 8 0
mtagpl 80 22 0 0 1 0 1 1 0 8 0
mbufpl 256 236 0 0 12 0 12 12 0 8 0
bufpl 280 3795 0 135 262 0 262 262 0 8 0
anonpl 16 62089 0 47902 76 2 74 74 0 124 16
amapchunkpl 152 2404 0 2264 13 2 11 13 0 158 4
amappl16 192 2345 0 1580 55 8 47 51 0 8 8
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 22 0 18 1 0 1 1 0 8 0
amappl13 168 26 0 24 1 0 1 1 0 8 0
amappl12 160 17 0 12 1 0 1 1 0 8 0
amappl11 152 244 0 226 1 0 1 1 0 8 0
amappl10 144 20 0 14 1 0 1 1 0 8 0
amappl9 136 385 0 384 1 0 1 1 0 8 0
amappl8 128 344 0 316 1 0 1 1 0 8 0
amappl7 120 121 0 108 1 0 1 1 0 8 0
amappl6 112 121 0 115 1 0 1 1 0 8 0
amappl5 104 318 0 302 1 0 1 1 0 8 0
amappl4 96 486 0 459 1 0 1 1 0 8 0
amappl3 88 114 0 108 1 0 1 1 0 8 0
amappl2 80 2413 0 2343 2 0 2 2 0 8 0
amappl1 72 19400 0 18944 23 13 10 18 0 8 0
amappl 80 1145 0 1095 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 11 0 0 1 0 1 1 0 8 0
uaddrrnd 24 426 0 407 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 426 0 407 1 0 1 1 0 8 0
vmmpekpl 168 7236 0 7200 2 0 2 2 0 8 0
vmmpepl 168 58745 0 56737 116 16 100 100 0 357 12
vmsppl 368 425 0 407 2 0 2 2 0 8 0
pdppl 4096 860 0 816 6 0 6 6 0 8 0
pvpl 32 189813 0 172428 178 1 177 177 0 265 36
pmappl 232 425 0 407 3 1 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 260 0 5 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fbcf9) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82657878) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82657878,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806a405100,0,3b9aca00,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
rtm_sendup(fffffd806f6d8190,fffffd806a405100,1) at rtm_sendup+0x5f sys/net/rtsock.c:588
route_input(fffffd806a405100,0,2) at route_input+0x1cc sys/net/rtsock.c:560
rtm_addr(c,ffff800000a0d300) at rtm_addr+0x10b sys/net/rtsock.c:1751
rt_ifa_add(ffff800000a0d300,240404,ffff800000a0d340,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140
rt_ifa_addlocal(ffff800000a0d300) at rt_ifa_addlocal+0x16d sys/net/route.c:1238
in_ifinit(ffff800000a28000,ffff800000a0d300,ffff800000a0d358,0) at in_ifinit+0x1cf sys/netinet/in.c:688
in_ioctl_change_ifaddr(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl_change_ifaddr+0x68c sys/netinet/in.c:519
in_ioctl(8040691a,ffff800022b812d0,ffff800000a28000,1) at in_ioctl+0x2fb sys/netinet/in.c:246
ifioctl(fffffd8064d50660,8040691a,ffff800022b812d0,ffff800020ed84f8) at ifioctl+0xe70 sys/net/if.c:2289
soo_ioctl(fffffd806cb5c600,8040691a,ffff800022b812d0,ffff800020ed84f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138
sys_ioctl(ffff800020ed84f8,ffff800022b813e8,ffff800022b81430) at sys_ioctl+0x4a5
syscall(ffff800022b814b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022b814b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x44a2c57b0f0, count: -18
ddb{0}> machine ddbcpu 1
---
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.
Anton Lindqvist
May 22, 2020, 2:29:53 AM5/22/20
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: pool: cpu free list modified: mbufpl
Reply all
Reply to author
Forward
0 new messages