login: e8#B̞/Hj]e8#B̞/Hj]kernel: protection fault trap, code=0 Stopped at pfi_ifhead_RB_REMOVE+0x58: movq 0x10(%r15),%rbx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pfi_ifhead_RB_REMOVE(ffffffff822b4e90,ffff800000a2e300) at pfi_ifhead_RB_REMOVE+0x58 sys/net/pf_if.c:80 pfi_detach_ifnet(ffff8000009e2000) at pfi_detach_ifnet+0x11e pfi_kif_unref sys/net/pf_if.c:199 [inline] pfi_detach_ifnet(ffff8000009e2000) at pfi_detach_ifnet+0x11e sys/net/pf_if.c:257 if_detach(ffff8000009e2000) at if_detach+0x15d sys/net/if.c:1120 tun_clone_destroy(ffff8000009e2000) at tun_clone_destroy+0x1c6 sys/net/if_tun.c:278 spec_close(ffff800016bf7d28) at spec_close+0x3b0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd803e8d5200,1,fffffd803f7c6ae0,ffff800014925ec0) at VOP_CLOSE+0x64 sys/kern/vfs_vops.c:174 vn_closefile(fffffd802fe63bb8,ffff800014925ec0) at vn_closefile+0x14b vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd802fe63bb8,ffff800014925ec0) at vn_closefile+0x14b sys/kern/vfs_vnops.c:575 fdrop(fffffd802fe63bb8,ffff800014925ec0) at fdrop+0xc9 sys/kern/kern_descrip.c:1260 closef(fffffd802fe63bb8,ffff800014925ec0) at closef+0x118 sys/kern/kern_descrip.c:1244 fdfree(ffff800014925ec0) at fdfree+0xf7 sys/kern/kern_descrip.c:1176 exit1(ffff800014925ec0,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff800014925ec0,ffff800016bf7fc0,ffff800016bf8030) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800016bf8090) at syscall+0x508 Xsyscall(6,1,0,1,0,7f7ffffd1c54) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd1c20, count: -14 ddb> show registers rdi 0xffffffff822b4e90 pfi_ifs rsi 0xffff800000a2e300 rbp 0xffff800016bf7bb0 rbx 0xdead4110dead4110 rdx 0x28 rcx 0x3695a487f528d88e rax 0xffff800000a2e310 r8 0x101010101010101 r9 0x5 r10 0xa6049b528a109be5 r11 0x7cf6aac4383b4245 r12 0xffffffff822b4e90 pfi_ifs r13 0 r14 0xffff800000a2e300 r15 0xdead4110dead4110 rip 0xffffffff817c4988 pfi_ifhead_RB_REMOVE+0x58 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800016bf7b50 ss 0x10 pfi_ifhead_RB_REMOVE+0x58: movq 0x10(%r15),%rbx ddb> show proc PROC (syz-executor.1) pid=234373 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800014925500,0xffffffff822ac008 process=0xffff8000ffffaa00 user=0xffff800016bf3000, vmspace=0xfffffd803f00bcc0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 92724 175775 1 0 3 0x100083 ttyin getty 32197 253500 0 0 3 0x14200 bored sosplice 43985 257730 92139 0 3 0x2 biowait syz-executor.0 8483 86541 92139 0 3 0x82 nanosleep syz-executor.1 92139 470903 32511 0 3 0x82 thrsleep syz-fuzzer 92139 402292 32511 0 3 0x4000082 nanosleep syz-fuzzer 92139 100725 32511 0 3 0x4000082 thrsleep syz-fuzzer 92139 248916 32511 0 3 0x4000082 kqread syz-fuzzer 92139 48366 32511 0 3 0x4000082 thrsleep syz-fuzzer 92139 377158 32511 0 3 0x4000082 thrsleep syz-fuzzer 92139 80039 32511 0 3 0x4000082 thrsleep syz-fuzzer 32511 271273 54378 0 3 0x10008a pause ksh 54378 132548 35870 0 3 0x92 select sshd 35870 427864 1 0 3 0x80 select sshd 61743 173241 4235 73 3 0x100090 kqread syslogd 4235 107679 1 0 3 0x100082 netio syslogd 68248 28349 1 77 3 0x100090 poll dhclient 14539 317957 1 0 3 0x80 poll dhclient 63705 375865 0 0 2 0x14200 zerothread 48802 204512 0 0 3 0x14200 aiodoned aiodoned 75347 406521 0 0 3 0x14200 syncer update 3417 382144 0 0 3 0x14200 cleaner cleaner 6964 307159 0 0 3 0x14200 reaper reaper 93082 85498 0 0 3 0x14200 pgdaemon pagedaemon 34609 235684 0 0 3 0x14200 bored crynlk 35744 424928 0 0 3 0x14200 bored crypto 76764 285771 0 0 3 0x40014200 acpi0 acpi0 31930 236633 0 0 2 0x14200 softnet 38030 474136 0 0 3 0x14200 bored systqmp 57723 53720 0 0 3 0x14200 bored systq 7447 39366 0 0 3 0x40014200 bored softclock 75639 466193 0 0 3 0x40014200 idle0 14829 388797 0 0 3 0x14200 bored smr 1 429933 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 Kern Lim devbuf 9523 7005K 7512K 78643K 24073 0 0 pcb 23 9K 11K 78643K 2213 0 0 rtable 114 4K 4K 78643K 1044 0 0 ifaddr 61 16K 19K 78643K 528 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 278 0 0 iov 0 0K 24K 78643K 623 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 77K 78643K 6125 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 69 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 1K 1K 78643K 426 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 4968 0 0 sigio 0 0K 0K 78643K 58 0 0 proc 42 30K 54K 78643K 946 0 0 subproc 32 2K 2K 78643K 44 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 425 0 0 in_multi 33 2K 2K 78643K 188 0 0 ether_multi 1 0K 0K 78643K 18 0 0 mrt 0 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 96 424K 424K 78643K 96 0 0 exec 0 0K 1K 78643K 695 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 82 20K 25K 78643K 12573 0 0 UVM aobj 130 4K 4K 78643K 146 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 202 0 0 NDP 13 0K 0K 78643K 138 0 0 temp 176 2719K 3359K 78643K 18538 0 0 kqueue 0 0K 0K 78643K 34 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 1928 0 1921 1 0 1 1 0 8 0 rtentry 112 47 0 2 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 66 0 66 2 2 0 1 0 8 0 tcpcb 544 735 0 731 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 107 0 107 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 45 0 5 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 8 1 0 1 1 0 8 0 semapl 112 424 0 414 1 0 1 1 0 8 0 shmpl 112 144 0 16 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 9659 0 8200 48 0 48 48 0 8 0 ffsino 240 9659 0 8200 87 0 87 87 0 8 0 nchpl 144 16781 0 15154 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 53172 0 53172 3 2 1 1 0 8 1 scsiplug 64 6 0 6 5 5 0 1 0 8 0 scxspl 192 52641 0 52640 30 29 1 5 0 8 0 plimitpl 152 172 0 165 1 0 1 1 0 8 0 sigapl 432 5149 0 5136 2 0 2 2 0 8 0 futexpl 56 81151 0 81151 2 1 1 1 0 8 1 knotepl 112 997 0 978 1 0 1 1 0 8 0 kqueuepl 104 1173 0 1171 1 0 1 1 0 8 0 pipepl 112 2788 0 2769 6 5 1 2 0 8 0 fdescpl 424 5150 0 5136 2 0 2 2 0 8 0 filepl 120 30955 0 30859 6 2 4 5 0 8 0 lockfpl 104 1822 0 1822 4 3 1 1 0 8 1 lockfspl 48 596 0 596 4 3 1 1 0 8 1 sessionpl 112 27 0 17 1 0 1 1 0 8 0 pgrppl 48 67 0 57 1 0 1 1 0 8 0 ucredpl 96 6842 0 6835 1 0 1 1 0 8 0 zombiepl 144 5137 0 5136 2 1 1 1 0 8 0 processpl 848 5165 0 5136 4 0 4 4 0 8 0 procpl 624 11646 0 11611 5 1 4 4 0 8 0 sosppl 128 52 0 52 14 13 1 1 0 8 1 sockpl 384 3902 0 3885 6 3 3 4 0 8 1 mcl64k 65536 643 0 643 74 71 3 32 0 8 3 mcl16k 16384 17 0 17 12 12 0 1 0 8 0 mcl12k 12288 87 0 87 17 16 1 1 0 8 1 mcl9k 9216 69 0 69 14 13 1 1 0 8 1 mcl8k 8192 70 0 70 14 13 1 1 0 8 1 mcl4k 4096 232 0 232 10 9 1 1 0 8 1 mcl2k2 2112 28 0 28 14 14 0 1 0 8 0 mcl2k 2048 59640 0 59584 18 10 8 15 0 8 0 mtagpl 80 14 0 12 3 2 1 1 0 8 0 mbufpl 256 118082 0 118004 40 33 7 22 0 8 0 bufpl 256 18225 0 12530 357 0 357 357 0 8 0 anonpl 16 447616 0 436331 181 119 62 64 0 62 14 amapchunkpl 152 20689 0 20589 43 38 5 14 0 158 0 amappl16 192 25414 0 24791 179 139 40 45 0 8 8 amappl15 184 2458 0 2456 1 0 1 1 0 8 0 amappl14 176 4970 0 4965 2 1 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 9 0 8 1 0 1 1 0 8 0 amappl11 152 51 0 37 1 0 1 1 0 8 0 amappl10 144 73 0 72 2 1 1 1 0 8 0 amappl9 136 545 0 542 1 0 1 1 0 8 0 amappl8 128 145 0 129 1 0 1 1 0 8 0 amappl7 120 29 0 25 1 0 1 1 0 8 0 amappl6 112 55 0 48 1 0 1 1 0 8 0 amappl5 104 177 0 167 1 0 1 1 0 8 0 amappl4 96 5361 0 5336 1 0 1 1 0 8 0 amappl3 88 2820 0 2809 1 0 1 1 0 8 0 amappl2 80 43271 0 43202 4 2 2 3 0 8 0 amappl1 72 95690 0 95288 26 17 9 19 0 8 0 amappl 80 11931 0 11897 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 145 0 16 3 0 3 3 0 8 0 uaddrrnd 24 5150 0 5136 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5150 0 5136 1 0 1 1 0 8 0 vmmpekpl 168 29928 0 29901 2 0 2 2 0 8 0 vmmpepl 168 597197 0 595565 206 123 83 89 0 357 9 vmsppl 272 5149 0 5136 2 1 1 2 0 8 0 pdppl 4096 10307 0 10272 6 1 5 6 0 8 0 pvpl 32 1371853 0 1357516 383 227 156 192 0 265 38 pmappl 200 5149 0 5136 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 647 0 155 18 2 16 16 0 8 1