login: panic: unhandled af 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *431504 21063 0 0x2 0 0K syz-executor1752 418029 65764 0 0x12 0 1 sshd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821d7d9a) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800020b1aef8,ffff800020b1b1f0,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pfioctl(4900,c0504417,ffff800020b1b1f0,1,ffff800020ad8010) at pfioctl+0x43cf sys/net/pf_ioctl.c:1827 VOP_IOCTL(fffffd806f6cd360,c0504417,ffff800020b1b1f0,1,fffffd807f7be960,ffff800020ad8010) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd807726cb48,c0504417,ffff800020b1b1f0,ffff800020ad8010) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800020ad8010,ffff800020b1b308,ffff800020b1b350) at sys_ioctl+0x5b9 syscall(ffff800020b1b3d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b1b3d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe3020, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic unhandled af 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821d7d9a) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(0) at unhandled_af+0x16 pf_addrcpy(ffff800020b1aef8,ffff800020b1b1f0,0) at pf_addrcpy+0x99 sys/net/pf.c:409 pfioctl(4900,c0504417,ffff800020b1b1f0,1,ffff800020ad8010) at pfioctl+0x43cf sys/net/pf_ioctl.c:1827 VOP_IOCTL(fffffd806f6cd360,c0504417,ffff800020b1b1f0,1,fffffd807f7be960,ffff800020ad8010) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd807726cb48,c0504417,ffff800020b1b1f0,ffff800020ad8010) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800020ad8010,ffff800020b1b308,ffff800020b1b350) at sys_ioctl+0x5b9 syscall(ffff800020b1b3d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b1b3d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe3020, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020b1adb0 rbx 0xffff800020b1ae60 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff81dfe84f kprintf+0x16f r9 0x1 r10 0x7736dfac603f6f46 r11 0xf665b2eda11a7d66 r12 0x3000000008 r13 0xffff800020b1adc0 r14 0x100 r15 0x1 rip 0xffffffff81f3d998 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020b1ada0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor1752) pid=431504 stat=onproc flags process=2 proc=0 pri=55, usrpri=55, nice=20 forw=0xffffffffffffffff, list=0xffff800020ad9158,0xffffffff82623980 process=0xffff800020aa2e30 user=0xffff800020b16000, vmspace=0xfffffd806e7ac738 estcpu=5, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *21063 431504 7484 0 7 0x2 syz-executor1752 7484 33041 65764 0 3 0x10008a pause ksh 65764 418029 79424 0 7 0x12 sshd 70273 167258 1 0 3 0x100083 ttyin getty 79424 75019 1 0 3 0x80 select sshd 78750 521666 13035 74 3 0x100092 bpf pflogd 13035 492831 1 0 3 0x80 netio pflogd 60502 182800 16925 73 3 0x100090 kqread syslogd 16925 454247 1 0 3 0x100082 netio syslogd 55311 304130 1 77 3 0x100090 poll dhclient 48653 6440 1 0 3 0x80 poll dhclient 4473 397383 0 0 3 0x14200 pgzero zerothread 18039 500865 0 0 3 0x14200 aiodoned aiodoned 53 203989 0 0 3 0x14200 syncer update 68871 11892 0 0 3 0x14200 cleaner cleaner 6244 517957 0 0 3 0x14200 reaper reaper 55735 270555 0 0 3 0x14200 pgdaemon pagedaemon 74135 508795 0 0 3 0x14200 bored crynlk 66851 442842 0 0 3 0x14200 bored crypto 67467 32370 0 0 3 0x40014200 acpi0 acpi0 73355 402318 0 0 3 0x40014200 idle1 20275 316376 0 0 3 0x14200 bored softnet 41026 151323 0 0 3 0x14200 bored systqmp 45962 392753 0 0 3 0x14200 bored systq 99167 261102 0 0 3 0x40014200 bored softclock 48668 64127 0 0 3 0x40014200 idle0 4338 1734 0 0 3 0x14200 bored smr 1 238076 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 21063 (syz-executor1752) thread 0xffff800020ad8010 (431504) exclusive rwlock netlock r = 0 (0xffffffff82471638) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 pfioctl+0x15f sys/net/pf_ioctl.c:1028 #2 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 #3 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8261e160) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 Process 65764 (sshd) thread 0xffff800020ad98c0 (418029) exclusive rwlock pipeglk r = 0 (0xffffffff824a30f0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 pipe_read+0x1ac sys/kern/sys_pipe.c:409 #2 dofilereadv+0x1a2 sys/kern/sys_generic.c:236 #3 sys_read+0x83 sys/kern/sys_generic.c:156 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9461 6393K 6394K 78643K 10552 0 pcb 13 8K 8K 78643K 13 0 rtable 61 2K 2K 78643K 127 0 ifaddr 29 8K 8K 78643K 30 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1467 0 mount 1 1K 1K 78643K 1 0 vnodes 1181 74K 74K 78643K 1186 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 1809 196K 290K 78643K 12766 0 file desc 1 0K 0K 78643K 1 0 proc 59 63K 71K 78643K 358 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 177 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 66 3K 4K 78643K 816 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 4 0K 0K 78643K 4 0 temp 26 3007K 3071K 78643K 1978 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 2 0 0 1 0 1 1 0 8 0 plcache 128 20 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 29 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 29 0 23 1 0 1 1 0 8 0 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 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 328 8 0 0 1 0 1 1 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 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 1401 0 16 45 0 45 45 0 8 0 ffsino 272 1401 0 16 93 0 93 93 0 8 0 nchpl 144 1577 0 34 58 0 58 58 0 8 0 uvmvnodes 72 1411 0 0 26 0 26 26 0 8 0 vnodes 208 1411 0 0 75 0 75 75 0 8 0 namei 1024 3773 0 3773 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2519 0 2519 2 0 2 2 0 8 2 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 204 0 192 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 112 128 0 121 1 0 1 1 0 8 0 fdescpl 488 205 0 192 3 0 3 3 0 8 0 filepl 152 997 0 948 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 192 0 192 1 0 1 1 0 8 1 processpl 904 220 0 192 4 0 4 4 0 8 0 procpl 632 220 0 192 3 0 3 3 0 8 0 sockpl 384 73 0 55 2 0 2 2 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 72 0 0 9 0 9 9 0 8 0 mtagpl 80 2 0 0 1 0 1 1 0 8 0 mbufpl 256 90 0 0 6 0 6 6 0 8 0 bufpl 280 2200 0 274 138 0 138 138 0 8 0 anonpl 16 19267 0 18019 7 1 6 7 0 125 0 amapchunkpl 152 525 0 487 2 0 2 2 0 158 0 amappl16 192 30 0 28 1 0 1 1 0 8 0 amappl15 184 50 0 47 1 0 1 1 0 8 0 amappl14 176 15 0 14 1 0 1 1 0 8 0 amappl12 160 1 0 1 1 0 1 1 0 8 1 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 6 0 3 1 0 1 1 0 8 0 amappl9 136 420 0 419 1 0 1 1 0 8 0 amappl8 128 68 0 64 1 0 1 1 0 8 0 amappl7 120 76 0 68 1 0 1 1 0 8 0 amappl6 112 48 0 45 1 0 1 1 0 8 0 amappl5 104 135 0 119 1 0 1 1 0 8 0 amappl4 96 466 0 440 1 0 1 1 0 8 0 amappl3 88 108 0 101 1 0 1 1 0 8 0 amappl2 80 778 0 720 2 0 2 2 0 8 0 amappl1 72 13874 0 13449 15 3 12 15 0 8 2 amappl 80 408 0 387 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 24 205 0 192 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 205 0 192 1 0 1 1 0 8 0 vmmpekpl 168 5347 0 5326 1 0 1 1 0 8 0 vmmpepl 168 29796 0 28940 49 2 47 49 0 357 5 vmsppl 368 204 0 192 2 0 2 2 0 8 0 pdppl 4096 417 0 384 5 0 5 5 0 8 0 pvpl 32 79275 0 76270 29 0 29 29 0 265 2 pmappl 232 204 0 192 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 136 0 3 4 0 4 4 0 8 0