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(ffffffff82924108,ffff800000b5ed00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6600) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6600) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000ae5000,ffff800000af6600) at if_delgroup+0x193 sys/net/if.c:2711 if_detach(ffff800000ae5000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000ae5000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff8000222c14d0) 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(ffff8000222c15a0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed8f5c8,7,fffffd807f7b77e0,ffff80002123cfc0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806a7fbdc0,ffff80002123cfc0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806a7fbdc0,ffff80002123cfc0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806a7fbdc0,ffff80002123cfc0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806a7fbdc0,ffff80002123cfc0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002123cfc0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002123cfc0,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff80002123cfc0,ffff8000222c1830,ffff8000222c1880) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff8000222c1900) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222c1900) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0a90, count: -17 ddb{0}> show registers rdi 0xffffffff82924108 pfi_ifs rsi 0xffff800000b5ed00 rbp 0xffff8000222c1330 rbx 0xdead4110dead4110 rdx 0 rcx 0xffff800000b1e680 rax 0xffff800000b5ed10 r8 0xf8 r9 0x8080808080808080 r10 0x997e64b1a6c78cef r11 0xff43d0f7e9cf778c r12 0xdead4110dead4110 r13 0xffff800000b94ac0 r14 0xffff800000b5ed00 r15 0xffffffff82924108 pfi_ifs rip 0xffffffff8199cb10 pfi_ifhead_RB_REMOVE+0x50 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff8000222c12d0 ss 0 pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=115446 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff80002123c540,0xffff80002123cd30 process=0xffff8000212350f0 user=0xffff8000222bc000, vmspace=0xfffffd807398c188 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87030 395239 23775 0 2 0 syz-executor.0 87030 515301 23775 0 7 0x4000000 syz-executor.0 23775 501944 83461 0 3 0x82 nanoslp syz-executor.0 50448 398974 0 0 3 0x14200 bored sosplice 77951 356367 0 0 3 0x14200 acct acct 83461 375162 12922 0 3 0x82 thrsleep syz-fuzzer 83461 356304 12922 0 3 0x4000082 nanoslp syz-fuzzer 83461 5702 12922 0 3 0x4000082 thrsleep syz-fuzzer 83461 389181 12922 0 3 0x4000082 thrsleep syz-fuzzer 83461 352138 12922 0 2 0x4000002 syz-fuzzer 83461 475147 12922 0 3 0x4000082 thrsleep syz-fuzzer 83461 70959 12922 0 2 0x4000002 syz-fuzzer 83461 522527 12922 0 3 0x4000082 kqread syz-fuzzer 12922 13637 34587 0 3 0x10008a sigsusp ksh 34587 365193 642 0 3 0x92 select sshd 25189 302004 1 0 3 0x100083 ttyin getty 642 340432 1 0 3 0x80 select sshd 22115 77256 10902 74 3 0x100092 bpf pflogd 10902 89166 1 0 3 0x80 netio pflogd 85953 137162 47855 73 3 0x100090 kqread syslogd 47855 141051 1 0 3 0x100082 netio syslogd 8655 109992 1 77 2 0x100090 dhclient 36333 477053 1 0 3 0x80 poll dhclient 54810 31513 0 0 3 0x14200 bored smr 43517 261493 0 0 2 0x14200 zerothread 17727 204592 0 0 3 0x14200 aiodoned aiodoned 34028 134999 0 0 3 0x14200 syncer update 36544 50712 0 0 3 0x14200 cleaner cleaner 39618 387438 0 0 3 0x14200 reaper reaper 30802 169479 0 0 3 0x14200 pgdaemon pagedaemon 78953 425866 0 0 3 0x14200 bored crynlk 95994 308864 0 0 3 0x14200 bored crypto 62047 142239 0 0 3 0x14200 bored viomb 45773 1399 0 0 3 0x40014200 acpi0 acpi0 3401 243843 0 0 3 0x40014200 idle1 76864 17067 0 0 3 0x14200 bored softnet 46482 524160 0 0 2 0x14200 systqmp 5976 344878 0 0 3 0x14200 bored systq 98909 277436 0 0 3 0x40014200 bored softclock 1320 296875 0 0 3 0x40014200 idle0 1 22719 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 9538 6447K 7461K 78643K 17964 0 pcb 13 8K 8K 78643K 375 0 rtable 90 3K 5K 78643K 808 0 ifaddr 69 13K 16K 78643K 302 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 112 0 ioctlops 0 0K 4K 78643K 1772 0 iov 0 0K 16K 78643K 138 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 3777 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 41 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 68 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 8152 0 sigio 0 0K 0K 78643K 39 0 proc 76 64K 96K 78643K 1026 0 subproc 23 1K 2K 78643K 136 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 557 0 in_multi 22 1K 2K 78643K 403 0 ether_multi 1 0K 0K 78643K 93 0 mrt 0 0K 0K 78643K 14 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 732 0 pfkey data 0 0K 0K 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 218 224K 224K 78643K 19645 0 UVM aobj 45 2K 2K 78643K 45 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 357 0 NDP 13 0K 0K 78643K 64 0 temp 141 3983K 4050K 78643K 69093 0 kqueue 3 4K 12K 78643K 229 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 18 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 192 0 190 1 0 1 1 0 8 0 rtentry 112 115 0 82 3 1 2 2 0 8 0 unpcb 120 1405 0 1376 3 1 2 2 0 8 1 syncache 296 34 0 34 5 5 0 1 0 8 0 tcpqe 32 23 0 23 6 6 0 1 0 8 0 tcpcb 736 942 0 938 18 17 1 5 0 8 0 inpcb 304 2767 0 2760 8 7 1 2 0 8 0 nd6 48 25 0 22 2 1 1 1 0 8 0 pkpcb 40 20 0 20 4 4 0 1 0 8 0 kcovpl 48 8 0 7 1 0 1 1 0 8 0 swfcl 56 8 0 0 1 0 1 1 0 8 0 ppxss 1128 18 0 18 3 3 0 1 0 8 0 pffrag 232 18 0 17 2 1 1 1 0 482 0 pffrnode 88 18 0 17 2 1 1 1 0 8 0 pffrent 40 475 0 474 2 1 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 15 0 15 2 2 0 1 0 8 0 pfqueue 264 5 0 5 1 0 1 1 0 8 1 pfstitem 24 125 0 111 1 0 1 1 0 8 0 pfstkey 112 125 0 111 2 0 2 2 0 8 0 pfstate 328 125 0 111 6 4 2 5 0 8 0 pfrule 1360 109 0 99 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 511 0 319 17 5 12 12 0 8 0 art_table 32 512 0 319 3 1 2 2 0 8 0 art_node 16 114 0 74 1 0 1 1 0 8 0 semapl 112 59 0 49 1 0 1 1 0 8 0 shmpl 112 42 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11068 0 9656 90 1 89 89 0 8 0 ffsino 272 11068 0 9656 96 1 95 95 0 8 0 nchpl 144 20541 0 18955 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 49890 0 49890 2 1 1 1 0 8 1 percpumem 16 67 0 34 1 0 1 1 0 8 0 vcpupl 1984 19 0 0 3 0 3 3 0 8 0 vmpool 560 39 0 20 3 1 2 2 0 8 0 pfiaddrpl 120 15 0 15 1 1 0 1 0 8 0 scsiplug 72 15 0 15 2 2 0 1 0 8 0 scxspl 216 59680 0 59680 11 10 1 8 0 8 1 plimitpl 152 268 0 260 1 0 1 1 0 8 0 sigapl 424 8352 0 8318 5 1 4 5 0 8 0 futexpl 56 51088 0 51088 2 1 1 1 0 8 1 knotepl 112 390 0 376 1 0 1 1 0 8 0 kqueuepl 168 3779 0 3773 1 0 1 1 0 8 0 pipepl 336 294 0 286 13 12 1 2 0 8 0 fdescpl 496 8334 0 8318 3 0 3 3 0 8 0 filepl 152 24901 0 24814 6 1 5 5 0 8 1 lockfpl 104 1254 0 1253 1 0 1 1 0 8 0 lockfspl 48 314 0 313 1 0 1 1 0 8 0 sessionpl 144 24 0 13 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 2619 0 2608 1 0 1 1 0 8 0 zombiepl 144 8319 0 8318 2 1 1 1 0 8 0 processpl 1080 8352 0 8318 3 0 3 3 0 8 0 procpl 672 18139 0 18097 10 6 4 5 0 8 0 srpgc 96 4 0 4 1 1 0 1 0 8 0 sosppl 168 69 0 69 7 6 1 1 0 8 1 sockpl 432 4391 0 4353 15 10 5 7 0 8 0 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 300 0 0 16 0 16 16 0 8 0 mtagpl 96 336 0 0 8 0 8 8 0 8 0 mbufpl 256 986 0 0 50 0 50 50 0 8 0 bufpl 280 13057 0 6810 447 0 447 447 0 8 0 anonpl 24 590857 0 583839 92 42 50 66 0 186 0 amapchunkpl 152 31327 0 31147 21 13 8 12 0 158 0 amappl16 200 26970 0 26657 49 32 17 28 0 8 0 amappl15 192 1073 0 1071 1 0 1 1 0 8 0 amappl14 184 1174 0 1168 1 0 1 1 0 8 0 amappl13 176 380 0 376 1 0 1 1 0 8 0 amappl12 168 4446 0 4442 1 0 1 1 0 8 0 amappl11 160 80 0 62 1 0 1 1 0 8 0 amappl10 152 28 0 23 1 0 1 1 0 8 0 amappl9 144 171 0 169 2 1 1 1 0 8 0 amappl8 136 369 0 267 4 0 4 4 0 8 0 amappl7 128 469 0 458 1 0 1 1 0 8 0 amappl6 120 98 0 81 1 0 1 1 0 8 0 amappl5 112 5024 0 5005 1 0 1 1 0 8 0 amappl4 104 4750 0 4721 1 0 1 1 0 8 0 amappl3 96 860 0 853 1 0 1 1 0 8 0 amappl2 88 70767 0 70676 4 1 3 3 0 8 0 amappl1 80 238898 0 238426 26 14 12 21 0 8 0 amappl 88 18577 0 18496 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 44 0 0 1 0 1 1 0 8 0 uaddrrnd 24 8373 0 8338 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8373 0 8338 1 0 1 1 0 8 0 vmmpekpl 168 40756 0 40721 2 0 2 2 0 8 0 vmmpepl 168 1037868 0 1036201 144 64 80 84 0 357 4 vmsppl 368 8372 0 8338 4 0 4 4 0 8 0 rwobjpl 56 214625 0 213527 36 19 17 19 0 8 1 pdppl 4096 16753 0 16695 82 22 60 60 0 8 2 pvpl 32 3033226 0 3022858 222 123 99 121 0 265 0 pmappl 232 8372 0 8338 5 2 3 3 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 404 0 62 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pfi_ifhead_RB_REMOVE(ffffffff82924108,ffff800000b5ed00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6600) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6600) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000ae5000,ffff800000af6600) at if_delgroup+0x193 sys/net/if.c:2711 if_detach(ffff800000ae5000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000ae5000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff8000222c14d0) 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(ffff8000222c15a0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed8f5c8,7,fffffd807f7b77e0,ffff80002123cfc0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806a7fbdc0,ffff80002123cfc0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806a7fbdc0,ffff80002123cfc0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806a7fbdc0,ffff80002123cfc0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806a7fbdc0,ffff80002123cfc0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002123cfc0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002123cfc0,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff80002123cfc0,ffff8000222c1830,ffff8000222c1880) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff8000222c1900) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222c1900) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0a90, 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:139 end trace frame: 0x0, count: -4