panic: unhandled af 254
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syzbot
Jan 1, 2020, 6:18:10 AM1/1/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 54f904eb drm/amdkfd: fix a potential NULL pointer derefere..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15418971e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=795ea98a8a156fdd3ca4
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+795ea9...@syzkaller.appspotmail.com
panic: unhandled af 254
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*470949 48474 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001f474d98,ffff80001f475090,fe) at pf_addrcpy+0x99
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001f475090,1,ffff80001d40f3d8) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d66e1a0,c0504417,ffff80001f475090,1,fffffd806c3be8a0,ffff80001d40f3d8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd806696bac8,c0504417,ffff80001f475090,ffff80001d40f3d8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff80001d40f3d8,ffff80001f4751a8,ffff80001f4751f0) at
sys_ioctl+0x5b9
syscall(ffff80001f475270) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9e379195010, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
unhandled af 254
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001f474d98,ffff80001f475090,fe) at pf_addrcpy+0x99
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001f475090,1,ffff80001d40f3d8) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d66e1a0,c0504417,ffff80001f475090,1,fffffd806c3be8a0,ffff80001d40f3d8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd806696bac8,c0504417,ffff80001f475090,ffff80001d40f3d8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff80001d40f3d8,ffff80001f4751a8,ffff80001f4751f0) at
sys_ioctl+0x5b9
syscall(ffff80001f475270) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9e379195010, count: -10
ddb> show registers
rdi 0xffffffff8147cb17 db_enter+0x17
rsi 0xb92
rbp 0xffff80001f474c50
rbx 0xffff80001f474d00
rdx 0xb93
rcx 0xffff80001f259000
rax 0xffff80001f259000
r8 0xffff80001f474c10
r9 0x1
r10 0xffff8000009ded00
r11 0xb3e842db39fb8983
r12 0x3000000008
r13 0xffff80001f474c60
r14 0x100
r15 0x1
rip 0xffffffff8147cb18 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001f474c40
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.1) pid=470949 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=82, usrpri=82, nice=20
forw=0xffffffffffffffff, list=0xffff80001d40e508,0xffffffff8254aeb8
process=0xffff80001d39a6e8 user=0xffff80001f470000,
vmspace=0xfffffd806748eab0
estcpu=36, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb>
---
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: 54f904eb drm/amdkfd: fix a potential NULL pointer derefere..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15418971e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=795ea98a8a156fdd3ca4
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+795ea9...@syzkaller.appspotmail.com
panic: unhandled af 254
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*470949 48474 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001f474d98,ffff80001f475090,fe) at pf_addrcpy+0x99
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001f475090,1,ffff80001d40f3d8) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d66e1a0,c0504417,ffff80001f475090,1,fffffd806c3be8a0,ffff80001d40f3d8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd806696bac8,c0504417,ffff80001f475090,ffff80001d40f3d8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff80001d40f3d8,ffff80001f4751a8,ffff80001f4751f0) at
sys_ioctl+0x5b9
syscall(ffff80001f475270) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9e379195010, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
unhandled af 254
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001f474d98,ffff80001f475090,fe) at pf_addrcpy+0x99
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001f475090,1,ffff80001d40f3d8) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d66e1a0,c0504417,ffff80001f475090,1,fffffd806c3be8a0,ffff80001d40f3d8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd806696bac8,c0504417,ffff80001f475090,ffff80001d40f3d8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff80001d40f3d8,ffff80001f4751a8,ffff80001f4751f0) at
sys_ioctl+0x5b9
syscall(ffff80001f475270) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9e379195010, count: -10
ddb> show registers
rdi 0xffffffff8147cb17 db_enter+0x17
rsi 0xb92
rbp 0xffff80001f474c50
rbx 0xffff80001f474d00
rdx 0xb93
rcx 0xffff80001f259000
rax 0xffff80001f259000
r8 0xffff80001f474c10
r9 0x1
r10 0xffff8000009ded00
r11 0xb3e842db39fb8983
r12 0x3000000008
r13 0xffff80001f474c60
r14 0x100
r15 0x1
rip 0xffffffff8147cb18 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001f474c40
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.1) pid=470949 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=82, usrpri=82, nice=20
forw=0xffffffffffffffff, list=0xffff80001d40e508,0xffffffff8254aeb8
process=0xffff80001d39a6e8 user=0xffff80001f470000,
vmspace=0xfffffd806748eab0
estcpu=36, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb>
---
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
Jan 1, 2020, 6:31:10 AM1/1/20
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 54f904eb drm/amdkfd: fix a potential NULL pointer derefere..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15fbbac6e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125f549ee00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+795ea9...@syzkaller.appspotmail.com
login: panic: unhandled af 254
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d2340,1,ffff8000ffff4010) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd8066e1a340,c0504417,ffff80001d3d2340,1,fffffd806c3beba0,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72b530,c0504417,ffff80001d3d2340,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff80001d3d2458,ffff80001d3d24a0) at
sys_ioctl+0x5b9
syscall(ffff80001d3d2520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d2340,1,ffff8000ffff4010) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd8066e1a340,c0504417,ffff80001d3d2340,1,fffffd806c3beba0,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72b530,c0504417,ffff80001d3d2340,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff80001d3d2458,ffff80001d3d24a0) at
sys_ioctl+0x5b9
syscall(ffff80001d3d2520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
rbp 0xffff80001d3d1f00
rbx 0xffff80001d3d1fb0
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff80001d3d1ec0
r9 0x1
r10 0xe5e6f93df9d3c310
r11 0x798d687f19ef5135
r12 0x3000000008
r13 0xffff80001d3d1f10
flags process=2<EXEC> proc=0
pri=52, usrpri=52, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4500,0xffffffff8254aeb8
process=0xffff80001d39a018 user=0xffff80001d3cd000,
vmspace=0xfffffd806bc09990
estcpu=2, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*98717 112343 10017 0 7 0x2 syz-executor3555
10017 172322 71866 0 3 0x10008a pause ksh
71866 204840 15286 0 3 0x92 select sshd
48774 196814 1 0 3 0x100083 ttyin getty
15286 292750 1 0 3 0x80 select sshd
81631 234858 41342 73 3 0x100090 kqread syslogd
41342 356092 1 0 3 0x100082 netio syslogd
74061 297020 1 77 3 0x100090 poll dhclient
48710 181285 1 0 3 0x80 poll dhclient
36142 32073 0 0 2 0x14200 zerothread
53385 455688 0 0 3 0x14200 aiodoned aiodoned
9350 194810 0 0 3 0x14200 syncer update
44345 409281 0 0 3 0x14200 cleaner cleaner
40930 45201 0 0 3 0x14200 reaper reaper
37561 501730 0 0 3 0x14200 pgdaemon pagedaemon
32432 426124 0 0 3 0x14200 bored crynlk
29067 381941 0 0 3 0x14200 bored crypto
34602 521199 0 0 3 0x40014200 acpi0 acpi0
79669 500148 0 0 3 0x14200 bored softnet
88016 338090 0 0 3 0x14200 bored systqmp
11661 366629 0 0 3 0x14200 bored systq
45776 166857 0 0 3 0x40014200 bored softclock
28489 37870 0 0 3 0x40014200 idle0
45008 155665 0 0 3 0x14200 bored smr
1 457896 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9438 6319K 6320K 78643K 10535 0
pcb 13 8K 8K 78643K 13 0
rtable 61 1K 2K 78643K 117 0
ifaddr 24 7K 7K 78643K 24 0
counters 19 16K 16K 78643K 19 0
ioctlops 0 0K 2K 78643K 13 0
mount 1 1K 1K 78643K 1 0
vnodes 1180 74K 74K 78643K 1185 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 0K 0K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1794 195K 288K 78643K 12646 0
file desc 1 0K 0K 78643K 1 0
proc 47 38K 46K 78643K 278 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 0K 78643K 11 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 19 95K 95K 78643K 19 0
exec 0 0K 1K 78643K 151 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 60 3K 3K 78643K 728 0
UVM aobj 2 2K 2K 78643K 2 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 3 0K 0K 78643K 3 0
temp 20 3003K 3067K 78643K 1710 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 2 0 0 1 0 1 1 0
8 0
rtpcb 80 15 0 13 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
unpcb 120 27 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 22 0 16 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 96 0 0 6 0 6 6 0
8 0
art_table 32 97 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1392 0 15 45 0 45 45 0
8 0
ffsino 240 1392 0 15 81 0 81 81 0
8 0
nchpl 144 1567 0 31 57 0 57 57 0
8 0
uvmvnodes 72 1401 0 0 26 0 26 26 0
8 0
vnodes 208 1401 0 0 74 0 74 74 0
8 0
namei 1024 3479 0 3479 1 0 1 1 0
8 1
scxspl 192 2408 0 2408 1 0 1 1 0
8 1
plimitpl 152 13 0 8 1 0 1 1 0
8 0
sigapl 432 176 0 166 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 112 114 0 107 1 0 1 1 0
8 0
fdescpl 424 177 0 166 2 0 2 2 0
8 0
filepl 120 858 0 814 2 0 2 2 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 166 0 166 1 0 1 1 0
8 1
processpl 872 191 0 166 4 0 4 4 0
8 0
procpl 632 191 0 166 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 5790 0 5757 8 0 8 8 0
8 3
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 9894 0 9849 6 0 6 6 0
8 2
bufpl 280 2097 0 258 132 0 132 132 0
8 0
anonpl 16 18478 0 17338 7 1 6 7 0
107 1
amapchunkpl 152 556 0 520 2 0 2 2 0
158 0
amappl16 192 29 0 27 1 0 1 1 0
8 0
amappl15 184 42 0 38 1 0 1 1 0
8 0
amappl14 176 13 0 12 1 0 1 1 0
8 0
amappl12 160 5 0 5 1 0 1 1 0
8 1
amappl11 152 41 0 30 1 0 1 1 0
8 0
amappl10 144 6 0 6 1 0 1 1 0
8 1
amappl9 136 373 0 371 1 0 1 1 0
8 0
amappl8 128 61 0 57 1 0 1 1 0
8 0
amappl7 120 64 0 55 1 0 1 1 0
8 0
amappl6 112 45 0 43 1 0 1 1 0
8 0
amappl5 104 146 0 136 1 0 1 1 0
8 0
amappl4 96 395 0 372 1 0 1 1 0
8 0
amappl3 88 110 0 102 1 0 1 1 0
8 0
amappl2 80 720 0 668 2 0 2 2 0
8 0
amappl1 72 12107 0 11717 16 5 11 16 0
8 1
amappl 80 374 0 355 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 18 0 17 1 0 1 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 177 0 166 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 177 0 166 1 0 1 1 0
8 0
vmmpekpl 168 5214 0 5200 1 0 1 1 0
8 0
vmmpepl 168 26093 0 25320 48 5 43 48 0
357 8
vmsppl 272 176 0 166 1 0 1 1 0
8 0
pdppl 4096 360 0 332 5 0 5 5 0
8 0
pvpl 32 71667 0 68920 27 0 27 27 0
265 4
pmappl 200 176 0 166 1 0 1 1 0
8 0
extentpl 40 46 0 29 1 0 1 1 0
8 0
phpool 112 116 0 2 4 0 4 4 0
8 0
HEAD commit: 54f904eb drm/amdkfd: fix a potential NULL pointer derefere..
git tree: openbsd
kernel config: https://syzkaller.appspot.com/x/.config?x=fe55924c11e64b0a
dashboard link: https://syzkaller.appspot.com/bug?extid=795ea98a8a156fdd3ca4
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13bd1fb6e00000
dashboard link: https://syzkaller.appspot.com/bug?extid=795ea98a8a156fdd3ca4
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125f549ee00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+795ea9...@syzkaller.appspotmail.com
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*112343 98717 0 0x2 0 0 syz-executor3555
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d2048,ffff80001d3d2340,fe) at pf_addrcpy+0x99
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d2340,1,ffff8000ffff4010) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd8066e1a340,c0504417,ffff80001d3d2340,1,fffffd806c3beba0,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72b530,c0504417,ffff80001d3d2340,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff80001d3d2458,ffff80001d3d24a0) at
sys_ioctl+0x5b9
syscall(ffff80001d3d2520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc46c0, count: 5
end of kernel
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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
unhandled af 254
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d2048,ffff80001d3d2340,fe) at pf_addrcpy+0x99
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
unhandled af 254
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8806) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(fe) at unhandled_af+0x16
sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d2340,1,ffff8000ffff4010) at
pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd8066e1a340,c0504417,ffff80001d3d2340,1,fffffd806c3beba0,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72b530,c0504417,ffff80001d3d2340,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff80001d3d2458,ffff80001d3d24a0) at
sys_ioctl+0x5b9
syscall(ffff80001d3d2520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc46c0, count: -10
end of kernel
ddb> show registers
rdi 0
rsi 0x1
rdi 0
rbp 0xffff80001d3d1f00
rbx 0xffff80001d3d1fb0
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff80001d3d1ec0
r9 0x1
r10 0xe5e6f93df9d3c310
r11 0x798d687f19ef5135
r12 0x3000000008
r13 0xffff80001d3d1f10
r14 0x100
r15 0x1
rip 0xffffffff8147cb18 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80001d3d1ef0
r15 0x1
rip 0xffffffff8147cb18 db_enter+0x18
cs 0x8
rflags 0x246
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor3555) pid=112343 stat=onproc
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
flags process=2<EXEC> proc=0
pri=52, usrpri=52, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4500,0xffffffff8254aeb8
process=0xffff80001d39a018 user=0xffff80001d3cd000,
vmspace=0xfffffd806bc09990
estcpu=2, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*98717 112343 10017 0 7 0x2 syz-executor3555
10017 172322 71866 0 3 0x10008a pause ksh
71866 204840 15286 0 3 0x92 select sshd
48774 196814 1 0 3 0x100083 ttyin getty
15286 292750 1 0 3 0x80 select sshd
81631 234858 41342 73 3 0x100090 kqread syslogd
41342 356092 1 0 3 0x100082 netio syslogd
74061 297020 1 77 3 0x100090 poll dhclient
48710 181285 1 0 3 0x80 poll dhclient
36142 32073 0 0 2 0x14200 zerothread
53385 455688 0 0 3 0x14200 aiodoned aiodoned
9350 194810 0 0 3 0x14200 syncer update
44345 409281 0 0 3 0x14200 cleaner cleaner
40930 45201 0 0 3 0x14200 reaper reaper
37561 501730 0 0 3 0x14200 pgdaemon pagedaemon
32432 426124 0 0 3 0x14200 bored crynlk
29067 381941 0 0 3 0x14200 bored crypto
34602 521199 0 0 3 0x40014200 acpi0 acpi0
79669 500148 0 0 3 0x14200 bored softnet
88016 338090 0 0 3 0x14200 bored systqmp
11661 366629 0 0 3 0x14200 bored systq
45776 166857 0 0 3 0x40014200 bored softclock
28489 37870 0 0 3 0x40014200 idle0
45008 155665 0 0 3 0x14200 bored smr
1 457896 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9438 6319K 6320K 78643K 10535 0
pcb 13 8K 8K 78643K 13 0
rtable 61 1K 2K 78643K 117 0
ifaddr 24 7K 7K 78643K 24 0
counters 19 16K 16K 78643K 19 0
ioctlops 0 0K 2K 78643K 13 0
mount 1 1K 1K 78643K 1 0
vnodes 1180 74K 74K 78643K 1185 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 0K 0K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1794 195K 288K 78643K 12646 0
file desc 1 0K 0K 78643K 1 0
proc 47 38K 46K 78643K 278 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 0K 78643K 11 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 19 95K 95K 78643K 19 0
exec 0 0K 1K 78643K 151 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 60 3K 3K 78643K 728 0
UVM aobj 2 2K 2K 78643K 2 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 3 0K 0K 78643K 3 0
temp 20 3003K 3067K 78643K 1710 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 2 0 0 1 0 1 1 0
8 0
rtpcb 80 15 0 13 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
unpcb 120 27 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 22 0 16 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 96 0 0 6 0 6 6 0
8 0
art_table 32 97 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1392 0 15 45 0 45 45 0
8 0
ffsino 240 1392 0 15 81 0 81 81 0
8 0
nchpl 144 1567 0 31 57 0 57 57 0
8 0
uvmvnodes 72 1401 0 0 26 0 26 26 0
8 0
vnodes 208 1401 0 0 74 0 74 74 0
8 0
namei 1024 3479 0 3479 1 0 1 1 0
8 1
scxspl 192 2408 0 2408 1 0 1 1 0
8 1
plimitpl 152 13 0 8 1 0 1 1 0
8 0
sigapl 432 176 0 166 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 112 114 0 107 1 0 1 1 0
8 0
fdescpl 424 177 0 166 2 0 2 2 0
8 0
filepl 120 858 0 814 2 0 2 2 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 166 0 166 1 0 1 1 0
8 1
processpl 872 191 0 166 4 0 4 4 0
8 0
procpl 632 191 0 166 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 5790 0 5757 8 0 8 8 0
8 3
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 9894 0 9849 6 0 6 6 0
8 2
bufpl 280 2097 0 258 132 0 132 132 0
8 0
anonpl 16 18478 0 17338 7 1 6 7 0
107 1
amapchunkpl 152 556 0 520 2 0 2 2 0
158 0
amappl16 192 29 0 27 1 0 1 1 0
8 0
amappl15 184 42 0 38 1 0 1 1 0
8 0
amappl14 176 13 0 12 1 0 1 1 0
8 0
amappl12 160 5 0 5 1 0 1 1 0
8 1
amappl11 152 41 0 30 1 0 1 1 0
8 0
amappl10 144 6 0 6 1 0 1 1 0
8 1
amappl9 136 373 0 371 1 0 1 1 0
8 0
amappl8 128 61 0 57 1 0 1 1 0
8 0
amappl7 120 64 0 55 1 0 1 1 0
8 0
amappl6 112 45 0 43 1 0 1 1 0
8 0
amappl5 104 146 0 136 1 0 1 1 0
8 0
amappl4 96 395 0 372 1 0 1 1 0
8 0
amappl3 88 110 0 102 1 0 1 1 0
8 0
amappl2 80 720 0 668 2 0 2 2 0
8 0
amappl1 72 12107 0 11717 16 5 11 16 0
8 1
amappl 80 374 0 355 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma128 128 253 0 253 1 1 0 1 0
8 0
dma64 64 6 0 6 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 18 0 17 1 0 1 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 177 0 166 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 177 0 166 1 0 1 1 0
8 0
vmmpekpl 168 5214 0 5200 1 0 1 1 0
8 0
vmmpepl 168 26093 0 25320 48 5 43 48 0
357 8
vmsppl 272 176 0 166 1 0 1 1 0
8 0
pdppl 4096 360 0 332 5 0 5 5 0
8 0
pvpl 32 71667 0 68920 27 0 27 27 0
265 4
pmappl 200 176 0 166 1 0 1 1 0
8 0
extentpl 40 46 0 29 1 0 1 1 0
8 0
phpool 112 116 0 2 4 0 4 4 0
8 0
Anton Lindqvist
Jan 3, 2020, 7:48:01 AM1/3/20
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: panic: unhandled af
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