kernel: protection fault trap, code=0 Stopped at pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pfi_ifhead_RB_REMOVE(ffffffff828ec3c8,ffff800000b22e00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000b3bd00) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000b3bd00) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000b42000,ffff800000b3bd00) at if_delgroup+0x193 sys/net/if.c:2700 if_detach(ffff800000b42000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000b42000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff8000242dfee0) at if_clone_destroy+0x136 sys/net/if.c:1212 tun_dev_close(5d01,7) at tun_dev_close+0x140 sys/net/if_tun.c:479 spec_close(ffff8000242dffb0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec1b328,7,fffffd807f7b79c0,ffff800021affcf0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806cb8d1d8,ffff800021affcf0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806cb8d1d8,ffff800021affcf0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806cb8d1d8,ffff800021affcf0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806cb8d1d8,ffff800021affcf0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021affcf0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021affcf0,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff800021affcf0,ffff8000242e0240,ffff8000242e0290) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff8000242e0310) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000242e0310) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffebf30, count: -17 ddb{0}> show registers rdi 0xffffffff828ec3c8 pfi_ifs rsi 0xffff800000b22e00 rbp 0xffff8000242dfd40 rbx 0xdead4110dead4110 rdx 0 rcx 0xffff800000af6b80 rax 0xffff800000b22e10 r8 0xf8 r9 0x8080808080808080 r10 0x48122b43e351cf0f r11 0xf1d8372e53a8ca0b r12 0xdead4110dead4110 r13 0xffff800000b3c1c0 r14 0xffff800000b22e00 r15 0xffffffff828ec3c8 pfi_ifs rip 0xffffffff81b0f500 pfi_ifhead_RB_REMOVE+0x50 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff8000242dfce0 ss 0x10 pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=212289 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021afea90,0xffffffff828cea18 process=0xffff800021c9e1d8 user=0xffff8000242db000, vmspace=0xfffffd806965fd00 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99265 199884 41052 0 2 0x2 syz-executor.0 69534 237455 0 0 3 0x14280 nfsidl nfsio 99322 78090 0 0 3 0x14280 nfsidl nfsio 79280 387616 0 0 3 0x14280 nfsidl nfsio 49327 340079 0 0 3 0x14280 nfsidl nfsio 56456 130188 0 0 3 0x14280 nfsidl nfsio 54920 225674 0 0 3 0x14280 nfsidl nfsio 75137 337243 0 0 3 0x14280 nfsidl nfsio 1536 266245 0 0 3 0x14280 nfsidl nfsio 56681 502498 0 0 3 0x14280 nfsidl nfsio 28942 261848 0 0 3 0x14280 nfsidl nfsio 260 397155 0 0 3 0x14280 nfsidl nfsio 59814 93937 0 0 3 0x14280 nfsidl nfsio 40466 339163 0 0 3 0x14280 nfsidl nfsio 73936 405667 0 0 3 0x14280 nfsidl nfsio 25989 166331 0 0 3 0x14280 nfsidl nfsio 19259 271984 0 0 3 0x14280 nfsidl nfsio 52851 73950 0 0 3 0x14280 nfsidl nfsio 57862 341409 0 0 3 0x14280 nfsidl nfsio 64006 99223 0 0 3 0x14280 nfsidl nfsio 77952 130127 0 0 3 0x14280 nfsidl nfsio 92603 462760 0 0 3 0x14200 acct acct 37893 339253 0 0 3 0x14200 bored sosplice 41052 364517 41479 0 3 0x82 thrsleep syz-fuzzer 41052 94295 41479 0 3 0x4000082 nanoslp syz-fuzzer 41052 401536 41479 0 3 0x4000082 thrsleep syz-fuzzer 41052 34990 41479 0 3 0x4000082 thrsleep syz-fuzzer 41052 59306 41479 0 3 0x4000082 thrsleep syz-fuzzer 41052 514573 41479 0 3 0x4000082 thrsleep syz-fuzzer 41052 235952 41479 0 3 0x4000082 thrsleep syz-fuzzer 41052 53901 41479 0 3 0x4000082 kqread syz-fuzzer 41479 382425 13253 0 3 0x10008a sigsusp ksh 13253 390989 63559 0 3 0x92 select sshd 81621 381016 1 0 3 0x100083 ttyin getty 63559 457639 1 0 3 0x80 select sshd 51014 335932 29847 74 3 0x100092 bpf pflogd 29847 102176 1 0 3 0x80 netio pflogd 54055 450557 6003 73 3 0x100090 kqread syslogd 6003 473892 1 0 3 0x100082 netio syslogd 88114 27471 1 77 2 0x100090 dhclient 11016 479672 1 0 3 0x80 poll dhclient 62758 91642 0 0 3 0x14200 bored smr 53872 118445 0 0 3 0x14200 pgzero zerothread 51066 88709 0 0 3 0x14200 aiodoned aiodoned 86161 230491 0 0 3 0x14200 syncer update 58583 468066 0 0 3 0x14200 cleaner cleaner 3674 509888 0 0 3 0x14200 reaper reaper 31944 177703 0 0 3 0x14200 pgdaemon pagedaemon 38316 487783 0 0 3 0x14200 bored crynlk 31338 214854 0 0 3 0x14200 bored crypto 88355 359246 0 0 3 0x14200 bored viomb 57330 396461 0 0 3 0x40014200 acpi0 acpi0 51912 108201 0 0 7 0x40014200 idle1 9008 382179 0 0 3 0x14200 bored softnet 48114 295698 0 0 2 0x14200 systqmp 21100 96768 0 0 3 0x14200 bored systq 23024 170872 0 0 3 0x40014200 bored softclock 96520 278591 0 0 3 0x40014200 idle0 1 505467 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9543 6437K 7795K 78643K 19771 0 pcb 13 8K 8K 78643K 493 0 rtable 83 3K 4K 78643K 1278 0 ifaddr 72 14K 17K 78643K 397 0 sysctl 2 0K 0K 78643K 10 0 counters 44 34K 34K 78643K 170 0 ioctlops 0 0K 4K 78643K 1662 0 iov 0 0K 16K 78643K 288 0 mount 1 1K 1K 78643K 1 0 vnodes 1231 77K 78K 78643K 4319 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 80 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 506 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 4 9K 25K 78643K 9509 0 sigio 0 0K 0K 78643K 24 0 proc 62 63K 95K 78643K 1047 0 subproc 23 1K 2K 78643K 153 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 519 0 in_multi 18 1K 2K 78643K 489 0 ether_multi 1 0K 0K 78643K 78 0 mrt 0 0K 0K 78643K 110 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 2K 78643K 735 0 pfkey data 0 0K 1K 78643K 5 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 221 111K 111K 78643K 22440 0 UVM aobj 90 8K 8K 78643K 96 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 410 0 NDP 14 0K 0K 78643K 118 0 temp 145 3983K 4051K 78643K 45394 0 kqueue 3 4K 12K 78643K 309 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 20 0 16 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 265 0 263 1 0 1 1 0 8 0 rtentry 112 260 0 229 2 0 2 2 0 8 0 unpcb 120 1945 0 1929 2 1 1 2 0 8 0 syncache 296 93 0 93 9 8 1 1 0 8 1 tcpqe 32 76 0 76 8 8 0 1 0 8 0 tcpcb 736 1186 0 1163 28 25 3 5 0 8 0 inpcb 304 3343 0 3332 12 10 2 2 0 8 1 rttmr 72 43 0 43 3 3 0 1 0 8 0 nd6 48 53 0 51 1 0 1 1 0 8 0 pkpcb 40 24 0 24 5 4 1 1 0 8 1 kcovpl 48 9 0 8 1 0 1 1 0 8 0 swfcl 56 8 0 0 1 0 1 1 0 8 0 ppxss 1128 23 0 23 4 4 0 1 0 8 0 pffrag 232 23 0 23 3 3 0 1 0 482 0 pffrnode 88 23 0 23 3 3 0 1 0 8 0 pffrent 40 70 0 70 5 5 0 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 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 105 0 94 1 0 1 1 0 8 0 pfstkey 112 105 0 94 1 0 1 1 0 8 0 pfstate 320 105 0 94 3 1 2 3 0 8 0 pfrule 1360 42 0 29 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1153 0 963 16 4 12 13 0 8 0 art_table 32 1154 0 963 2 0 2 2 0 8 0 art_node 16 259 0 221 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 19 1 1 0 1 0 8 0 semapl 112 494 0 484 1 0 1 1 0 8 0 shmpl 112 93 0 6 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12786 0 11374 91 1 90 90 0 8 0 ffsino 272 12786 0 11374 95 0 95 95 0 8 0 nchpl 144 23366 0 21781 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 55588 0 55588 1 0 1 1 0 8 1 percpumem 16 96 0 63 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 18 0 12 1 0 1 1 0 8 0 scsiplug 72 15 0 15 2 2 0 1 0 8 0 scxspl 216 69842 0 69842 11 10 1 8 0 8 1 plimitpl 152 152 0 144 1 0 1 1 0 8 0 sigapl 424 9727 0 9674 7 0 7 7 0 8 0 futexpl 56 58526 0 58526 1 0 1 1 0 8 1 knotepl 112 497 0 483 1 0 1 1 0 8 0 kqueuepl 168 4561 0 4553 1 0 1 1 0 8 0 pipepl 336 497 0 489 4 1 3 3 0 8 1 fdescpl 496 9689 0 9674 3 0 3 3 0 8 0 filepl 152 28235 0 28148 11 4 7 7 0 8 3 lockfpl 104 867 0 866 1 0 1 1 0 8 0 lockfspl 48 341 0 340 1 0 1 1 0 8 0 sessionpl 144 25 0 14 1 0 1 1 0 8 0 pgrppl 48 35 0 24 1 0 1 1 0 8 0 ucredpl 96 2018 0 2009 1 0 1 1 0 8 0 zombiepl 144 9675 0 9674 1 0 1 1 0 8 0 processpl 1080 9727 0 9674 4 0 4 4 0 8 0 procpl 672 21041 0 20981 6 0 6 6 0 8 0 sosppl 168 165 0 165 8 7 1 1 0 8 1 sockpl 432 5588 0 5557 14 8 6 7 0 8 2 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 18 0 0 2 0 2 2 0 8 0 mcl8k 8192 15 0 0 2 0 2 2 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 277 0 0 16 0 16 16 0 8 0 mtagpl 96 403 0 0 8 0 8 8 0 8 0 mbufpl 256 1002 0 0 52 0 52 52 0 8 0 bufpl 280 17654 0 11405 447 0 447 447 0 8 0 anonpl 24 709381 0 702562 177 81 96 99 0 186 44 amapchunkpl 152 42361 0 42139 54 45 9 22 0 158 0 amappl16 200 31707 0 31426 75 54 21 39 0 8 5 amappl15 192 3879 0 3878 1 0 1 1 0 8 0 amappl14 184 2433 0 2428 1 0 1 1 0 8 0 amappl13 176 96 0 94 1 0 1 1 0 8 0 amappl12 168 654 0 649 1 0 1 1 0 8 0 amappl11 160 85 0 68 1 0 1 1 0 8 0 amappl10 152 2510 0 2503 1 0 1 1 0 8 0 amappl9 144 17 0 17 2 2 0 1 0 8 0 amappl8 136 440 0 317 5 0 5 5 0 8 0 amappl7 128 334 0 323 1 0 1 1 0 8 0 amappl6 120 2580 0 2567 1 0 1 1 0 8 0 amappl5 112 8518 0 8500 1 0 1 1 0 8 0 amappl4 104 2703 0 2665 4 2 2 2 0 8 1 amappl3 96 370 0 362 1 0 1 1 0 8 0 amappl2 88 78854 0 78786 3 1 2 3 0 8 0 amappl1 80 277960 0 277489 26 14 12 21 0 8 0 amappl 88 21536 0 21467 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 95 0 6 2 0 2 2 0 8 0 uaddrrnd 24 9707 0 9686 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9707 0 9686 1 0 1 1 0 8 0 vmmpekpl 168 40685 0 40647 2 0 2 2 0 8 0 vmmpepl 168 1206844 0 1205296 145 52 93 97 0 357 17 vmsppl 368 9706 0 9686 3 0 3 3 0 8 0 rwobjpl 56 248119 0 247033 42 23 19 23 0 8 3 pdppl 4096 19421 0 19378 67 20 47 48 0 8 4 pvpl 32 3314553 0 3304807 300 146 154 162 0 265 61 pmappl 232 9706 0 9686 3 1 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 391 0 54 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pfi_ifhead_RB_REMOVE(ffffffff828ec3c8,ffff800000b22e00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000b3bd00) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000b3bd00) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000b42000,ffff800000b3bd00) at if_delgroup+0x193 sys/net/if.c:2700 if_detach(ffff800000b42000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000b42000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff8000242dfee0) at if_clone_destroy+0x136 sys/net/if.c:1212 tun_dev_close(5d01,7) at tun_dev_close+0x140 sys/net/if_tun.c:479 spec_close(ffff8000242dffb0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec1b328,7,fffffd807f7b79c0,ffff800021affcf0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806cb8d1d8,ffff800021affcf0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806cb8d1d8,ffff800021affcf0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806cb8d1d8,ffff800021affcf0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806cb8d1d8,ffff800021affcf0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021affcf0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021affcf0,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff800021affcf0,ffff8000242e0240,ffff8000242e0290) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff8000242e0310) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000242e0310) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffebf30, count: -17 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5