login: panic: kernel diagnostic assertion "(rule != NULL) && (rule->ruleset != NULL)" failed: file "/syzkaller/managers/multicore/kernel/sys/net/pf_ioctl.c", line 330
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
338235 33889 0 0x2 0 1 syz-executor1742
*176350 79432 0 0x14000 0x200 0K systq
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8244cf87) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff824be1c4,ffffffff824f7e76,14a,ffffffff824840b5) at __assert+0x25 sys/kern/subr_prf.c:161
pf_purge_rule(ffff800000ba0558) at pf_purge_rule+0x1ab sys/net/pf_ioctl.c:330
pf_purge_expired_rules() at pf_purge_expired_rules+0xbc sys/net/pf.c:1275
pf_purge(ffffffff82981d30) at pf_purge+0xe0 sys/net/pf.c:1312
taskq_thread(ffffffff827f67a0) at taskq_thread+0xe6 sys/kern/kern_task.c:449
end trace frame: 0x0, count: 8
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
*cpu0: kernel diagnostic assertion "(rule != NULL) && (rule->ruleset != NULL)" failed: file "/syzkaller/managers/multicore/kernel/sys/net/pf_ioctl.c", line 330
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8244cf87) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff824be1c4,ffffffff824f7e76,14a,ffffffff824840b5) at __assert+0x25 sys/kern/subr_prf.c:161
pf_purge_rule(ffff800000ba0558) at pf_purge_rule+0x1ab sys/net/pf_ioctl.c:330
pf_purge_expired_rules() at pf_purge_expired_rules+0xbc sys/net/pf.c:1275
pf_purge(ffffffff82981d30) at pf_purge+0xe0 sys/net/pf.c:1312
taskq_thread(ffffffff827f67a0) at taskq_thread+0xe6 sys/kern/kern_task.c:449
end trace frame: 0x0, count: -7
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002115b260
rbx 0xffffffff827e3bff cpu_info_full_primary+0x2bff
rdx 0x8b
rcx 0x2
rax 0xa0
r8 0xffffffff817eb474 kprintf+0x144
r9 0x1
r10 0x2215bf137004de3
r11 0x8defe935bbda665e
r12 0xffffffff827e3a00 cpu_info_full_primary+0x2a00
r13 0
r14 0
r15 0x1
rip 0xffffffff81552b08 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80002115b250
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (systq) pid=176350 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff8000211497a0,0xffff8000211487f0
process=0xffff8000ffffe568 user=0xffff800021156000, vmspace=0xffffffff828c32f0
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
33889 338235 95218 0 7 0x2 syz-executor1742
95218 239022 22804 0 3 0x10008a sigsusp ksh
22804 513109 89373 0 3 0x9a kqread sshd
64474 83431 1 0 3 0x100083 ttyin getty
89373 265247 1 0 3 0x88 kqread sshd
77824 277959 44133 74 3 0x100092 bpf pflogd
44133 175672 1 0 3 0x80 netio pflogd
25871 453960 84595 73 3 0x100090 kqread syslogd
84595 72808 1 0 3 0x100082 netio syslogd
75466 960 1 0 3 0x100080 kqread resolvd
62939 454887 12945 77 3 0x100092 kqread dhcpleased
42298 311821 12945 77 3 0x100092 kqread dhcpleased
12945 514799 1 0 3 0x80 kqread dhcpleased
56399 124845 0 0 3 0x14200 bored smr
83192 148187 0 0 3 0x14200 pgzero zerothread
66029 503231 0 0 3 0x14200 aiodoned aiodoned
88280 90858 0 0 3 0x14200 syncer update
32991 366015 0 0 3 0x14200 cleaner cleaner
59866 352943 0 0 3 0x14200 reaper reaper
24894 318217 0 0 3 0x14200 pgdaemon pagedaemon
91883 311767 0 0 3 0x14200 bored viomb
95221 448356 0 0 3 0x40014200 acpi0 acpi0
96768 445830 0 0 3 0x40014200 idle1
88067 104980 0 0 3 0x14200 bored softnet
98432 444059 0 0 3 0x14200 bored systqmp
*79432 176350 0 0 7 0x14200 systq
24079 390825 0 0 3 0x40014200 bored softclock
5518 276616 0 0 3 0x40014200 idle0
1 254187 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 79432 (systq) thread 0xffff800021149500 (176350)
exclusive rwlock pf_lock r = 0 (0xffffffff82768fb0)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182
#1 pf_purge+0xa9 sys/net/pf.c:1308
#2 taskq_thread+0xe6 sys/kern/kern_task.c:449
#3 proc_trampoline+0x1c
exclusive rwlock netlock r = 0 (0xffffffff82814800)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182
#1 pf_purge+0x38 sys/net/pf.c:1306
#2 taskq_thread+0xe6 sys/kern/kern_task.c:449
#3 proc_trampoline+0x1c
shared rwlock systq r = 0 (0xffffffff827f6810)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182
#1 taskq_thread+0xcb sys/kern/kern_task.c:445
#2 proc_trampoline+0x1c
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828ba480)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182
#1 __mp_acquire_count+0x4c sys/kern/kern_lock.c:227
#2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416
#3 sleep_finish+0x1b2 sys/kern/kern_synch.c:433
#4 msleep+0x115 sys/kern/kern_synch.c:259
#5 taskq_next_work+0x6e sys/kern/kern_task.c:402
#6 taskq_thread+0x145 sys/kern/kern_task.c:442
#7 proc_trampoline+0x1c
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10109 6415K 6416K 78643K 11199 0
pcb 13 8K 8K 78643K 244 0
rtable 67 3K 3K 78643K 119 0
ifaddr 30 8K 8K 78643K 31 0
counters 40 33K 33K 78643K 40 0
ioctlops 0 0K 4K 78643K 2172 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1183 74K 75K 78643K 1188 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 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 1 0K 0K 78643K 1 0
proc 67 87K 87K 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 2K 78643K 353 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 7 26K 26K 78643K 7 0
UVM amap 82 3K 6K 78643K 2862 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 462 0
NDP 4 0K 0K 78643K 4 0
temp 24 4183K 4245K 78643K 2200 0
kqueue 11 16K 16K 78643K 20 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
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 17 0 14 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 128 35 0 20 1 0 1 1 0 8 0
syncache 296 5 0 5 2 1 1 1 0 8 1
tcpcb 736 470 0 419 5 0 5 5 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 304 956 0 950 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
pfrktable 1344 3 0 1 1 0 1 1 0 8 0
pfstitem 24 9 0 2 1 0 1 1 0 8 0
pfstkey 112 9 0 2 1 0 1 1 0 8 0
pfstate 320 9 0 2 1 0 1 1 0 8 0
pfrule 1360 483 0 246 20 0 20 20 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
dino2pl 256 1413 0 23 87 0 87 87 0 8 0
ffsino 272 1413 0 23 93 0 93 93 0 8 0
nchpl 144 1587 0 40 58 0 58 58 0 8 0
uvmvnodes 72 1423 0 0 26 0 26 26 0 8 0
vnodes 224 1423 0 0 84 0 84 84 0 8 0
namei 1024 4842 0 4842 2 1 1 1 0 8 1
percpumem 16 32 0 0 1 0 1 1 0 8 0
pfiaddrpl 120 231 0 0 7 0 7 7 0 8 0
scxspl 216 3737 0 3737 10 9 1 8 0 8 1
plimitpl 152 16 0 9 1 0 1 1 0 8 0
sigapl 424 485 0 456 4 0 4 4 0 8 0
knotepl 112 42 0 0 2 0 2 2 0 8 0
kqueuepl 216 16 0 9 1 0 1 1 0 8 0
pipepl 336 69 0 66 2 1 1 1 0 8 0
fdescpl 496 471 0 456 3 0 3 3 0 8 0
filepl 152 2699 0 2641 3 0 3 3 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 96 69 0 57 1 0 1 1 0 8 0
zombiepl 144 456 0 455 2 1 1 1 0 8 0
processpl 1064 485 0 455 3 0 3 3 0 8 0
procpl 672 485 0 455 3 0 3 3 0 8 0
sockpl 480 1008 0 984 5 1 4 4 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 83 0 0 10 0 10 10 0 8 0
mtagpl 96 2 0 0 1 0 1 1 0 8 0
mbufpl 256 136 0 0 9 0 9 9 0 8 0
bufpl 280 2003 0 92 137 0 137 137 0 8 0
anonpl 24 58902 0 56590 18 3 15 17 0 186 1
amapchunkpl 152 5136 0 4993 8 2 6 8 0 158 0
amappl16 200 259 0 259 2 1 1 1 0 8 1
amappl15 192 66 0 63 1 0 1 1 0 8 0
amappl13 176 18 0 17 2 1 1 1 0 8 0
amappl12 168 10 0 9 1 0 1 1 0 8 0
amappl11 160 60 0 43 1 0 1 1 0 8 0
amappl10 152 11 0 9 1 0 1 1 0 8 0
amappl9 144 230 0 228 1 0 1 1 0 8 0
amappl8 136 280 0 278 1 0 1 1 0 8 0
amappl7 128 34 0 32 1 0 1 1 0 8 0
amappl6 120 268 0 263 1 0 1 1 0 8 0
amappl5 112 213 0 195 1 0 1 1 0 8 0
amappl4 104 534 0 513 1 0 1 1 0 8 0
amappl3 96 156 0 141 1 0 1 1 0 8 0
amappl2 88 295 0 263 1 0 1 1 0 8 0
amappl1 80 9639 0 9251 10 1 9 9 0 8 0
amappl 88 2385 0 2321 2 0 2 2 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 64 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 471 0 456 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 471 0 456 1 0 1 1 0 8 0
vmmpekpl 168 6502 0 6486 1 0 1 1 0 8 0
vmmpepl 168 29948 0 29095 46 4 42 42 0 357 1
vmsppl 368 470 0 456 2 0 2 2 0 8 0
rwobjpl 56 8796 0 8237 10 2 8 9 0 8 0
pdppl 4096 950 0 912 58 18 40 44 0 8 2
pvpl 32 145833 0 141704 43 6 37 37 0 265 2
pmappl 224 470 0 456 2 0 2 2 0 8 0
extentpl 40 58 0 40 1 0 1 1 0 8 0
phpool 112 303 0 22 9 0 9 9 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:440
panic(ffffffff8244cf87) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff824be1c4,ffffffff824f7e76,14a,ffffffff824840b5) at __assert+0x25 sys/kern/subr_prf.c:161
pf_purge_rule(ffff800000ba0558) at pf_purge_rule+0x1ab sys/net/pf_ioctl.c:330
pf_purge_expired_rules() at pf_purge_expired_rules+0xbc sys/net/pf.c:1275
pf_purge(ffffffff82981d30) at pf_purge+0xe0 sys/net/pf.c:1312
taskq_thread(ffffffff827f67a0) at taskq_thread+0xe6 sys/kern/kern_task.c:449
end trace frame: 0x0, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc
syscall(ffff80002121ee50) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline]
syscall(ffff80002121ee50) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffcfd70, count: 9
ddb{1}> trace
x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc
syscall(ffff80002121ee50) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline]
syscall(ffff80002121ee50) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffcfd70, count: -6