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(ffffffff828ec918,ffff800000add500) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6980) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6980) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000bb0000,ffff800000af6980) at if_delgroup+0x193 sys/net/if.c:2700 if_detach(ffff800000bb0000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000bb0000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff80002128d990) 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(ffff80002128da60) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e3fe6a8,7,fffffd807f7b77e0,ffff800021296010) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806a78e310,ffff800021296010) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806a78e310,ffff800021296010) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806a78e310,ffff800021296010) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806a78e310,ffff800021296010) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021296010) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021296010,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff800021296010,ffff80002128dcf0,ffff80002128dd40) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff80002128ddc0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002128ddc0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcfbc0, count: -17 ddb{0}> show registers rdi 0xffffffff828ec918 pfi_ifs rsi 0xffff800000add500 rbp 0xffff80002128d7f0 rbx 0xdeafbeaddeafbead rdx 0 rcx 0xffff800000af6500 rax 0xffff800000add510 r8 0xf8 r9 0x8080808080808080 r10 0xc95fb6c48206c24c r11 0x7743e0a04765ae9a r12 0xdeafbeaddeafbead r13 0xffff800000b5b660 r14 0xffff800000add500 r15 0xffffffff828ec918 pfi_ifs rip 0xffffffff81beab90 pfi_ifhead_RB_REMOVE+0x50 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002128d790 ss 0x10 pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=428110 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800021296550,0xffff800021296800 process=0xffff800023328cc0 user=0xffff800021288000, vmspace=0xfffffd806a3742f8 estcpu=31, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94802 341689 56989 0 2 0 syz-executor.0 94802 424311 56989 0 2 0x4000000 syz-executor.0 83780 432965 0 0 3 0x14200 acct acct 918 440086 0 0 3 0x14280 nfsidl nfsio 65327 485221 0 0 3 0x14280 nfsidl nfsio 33431 136185 0 0 3 0x14280 nfsidl nfsio 29320 279211 0 0 3 0x14280 nfsidl nfsio 89170 439630 0 0 3 0x14280 nfsidl nfsio 52071 100256 0 0 3 0x14280 nfsidl nfsio 16928 92392 0 0 3 0x14280 nfsidl nfsio 48191 96471 0 0 3 0x14280 nfsidl nfsio 31981 227911 0 0 3 0x14280 nfsidl nfsio 72348 441127 0 0 3 0x14280 nfsidl nfsio 31157 154803 0 0 3 0x14280 nfsidl nfsio 88244 388184 0 0 3 0x14280 nfsidl nfsio 73523 80135 0 0 3 0x14280 nfsidl nfsio 2766 434227 0 0 3 0x14280 nfsidl nfsio 72330 513631 0 0 3 0x14280 nfsidl nfsio 49408 241598 0 0 3 0x14280 nfsidl nfsio 88617 127365 0 0 3 0x14280 nfsidl nfsio 40415 518016 0 0 3 0x14280 nfsidl nfsio 23464 135273 0 0 3 0x14280 nfsidl nfsio 59523 483798 0 0 3 0x14280 nfsidl nfsio 56989 25312 47728 0 3 0x82 nanoslp syz-executor.0 5023 297378 0 0 3 0x14200 bored sosplice 47728 374891 22519 0 3 0x82 thrsleep syz-fuzzer 47728 52047 22519 0 3 0x4000082 nanoslp syz-fuzzer 47728 453827 22519 0 3 0x4000082 thrsleep syz-fuzzer 47728 159456 22519 0 3 0x4000082 thrsleep syz-fuzzer 47728 297130 22519 0 3 0x4000082 thrsleep syz-fuzzer 47728 122500 22519 0 3 0x4000082 thrsleep syz-fuzzer 47728 230898 22519 0 3 0x4000082 thrsleep syz-fuzzer 47728 368423 22519 0 3 0x4000082 kqread syz-fuzzer 22519 155799 75107 0 3 0x10008a sigsusp ksh 75107 230892 95616 0 3 0x92 select sshd 63410 27528 1 0 3 0x100083 ttyin getty 95616 522853 1 0 3 0x80 select sshd 86943 177013 40151 74 2 0x100012 pflogd 40151 246640 1 0 3 0x80 netio pflogd 70020 268780 71049 73 3 0x100090 kqread syslogd 71049 262248 1 0 3 0x100082 netio syslogd 13449 150532 1 77 2 0x100090 dhclient 58880 26956 1 0 3 0x80 poll dhclient 7236 111351 0 0 3 0x14200 bored smr 28745 500417 0 0 2 0x14200 zerothread 20649 424216 0 0 3 0x14200 aiodoned aiodoned 17863 262625 0 0 3 0x14200 syncer update 88153 206075 0 0 3 0x14200 cleaner cleaner 60057 999 0 0 3 0x14200 reaper reaper 81115 311315 0 0 3 0x14200 pgdaemon pagedaemon 69448 478225 0 0 3 0x14200 bored crynlk 24685 14998 0 0 3 0x14200 bored crypto 42700 416218 0 0 3 0x14200 bored viomb 84003 253813 0 0 3 0x40014200 acpi0 acpi0 38409 440577 0 0 7 0x40014200 idle1 12815 308291 0 0 3 0x14200 bored softnet 39143 322442 0 0 2 0x14200 systqmp 81612 133535 0 0 3 0x14200 bored systq 36599 353168 0 0 3 0x40014200 bored softclock 48636 313139 0 0 3 0x40014200 idle0 1 354430 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 9542 6521K 7339K 78643K 17533 0 pcb 13 8K 8K 78643K 324 0 rtable 85 3K 5K 78643K 931 0 ifaddr 71 14K 15K 78643K 283 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 116 0 ioctlops 0 0K 4K 78643K 1657 0 iov 0 0K 24K 78643K 191 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 78K 78643K 3641 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 53 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 321 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 5901 0 sigio 0 0K 0K 78643K 26 0 proc 63 63K 95K 78643K 826 0 subproc 23 1K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 327 0 in_multi 22 1K 2K 78643K 237 0 ether_multi 1 0K 0K 78643K 47 0 mrt 0 0K 0K 78643K 35 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 595 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 223 289K 305K 78643K 14326 0 UVM aobj 118 8K 8K 78643K 128 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 280 0 NDP 13 0K 0K 78643K 63 0 temp 142 3985K 4053K 78643K 37729 0 kqueue 3 4K 12K 78643K 191 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 120 192 0 190 1 0 1 1 0 8 0 rtentry 112 122 0 90 2 0 2 2 0 8 0 unpcb 120 1170 0 1143 3 1 2 2 0 8 1 syncache 296 55 0 55 7 6 1 1 0 8 1 tcpqe 32 105 0 105 4 4 0 1 0 8 0 tcpcb 736 814 0 805 20 17 3 5 0 8 1 inpcb 304 2283 0 2271 9 7 2 2 0 8 0 rttmr 72 10 0 10 1 1 0 1 0 8 0 nd6 48 19 0 16 1 0 1 1 0 8 0 pkpcb 40 15 0 15 3 3 0 1 0 8 0 kcovpl 48 5 0 4 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 5 2 1 1 1 0 482 1 pffrnode 88 5 0 5 2 1 1 1 0 8 1 pffrent 40 97 0 97 2 1 1 1 0 8 1 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 35 0 35 3 2 1 1 0 8 1 pfstitem 24 58 0 56 1 0 1 1 0 8 0 pfstkey 112 74 0 72 1 0 1 1 0 8 0 pfstate 320 66 0 64 3 2 1 3 0 8 0 pfrule 1360 82 0 68 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 449 0 272 15 3 12 13 0 8 0 art_table 32 450 0 272 2 0 2 2 0 8 0 art_node 16 121 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 13 1 0 1 1 0 8 0 semupl 112 18 0 18 1 1 0 1 0 8 0 semapl 112 319 0 309 1 0 1 1 0 8 0 shmpl 112 125 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8851 0 7449 90 1 89 89 0 8 0 ffsino 272 8851 0 7449 95 0 95 95 0 8 0 nchpl 144 15677 0 14091 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 38759 0 38759 1 0 1 1 0 8 1 percpumem 16 69 0 36 1 0 1 1 0 8 0 vcpupl 1984 20 0 0 3 0 3 3 0 8 0 vmpool 560 26 0 6 2 0 2 2 0 8 0 pfiaddrpl 120 10 0 10 2 1 1 1 0 8 1 scxspl 216 47425 0 47425 12 11 1 8 0 8 1 plimitpl 152 106 0 98 1 0 1 1 0 8 0 sigapl 424 6130 0 6076 7 0 7 7 0 8 0 futexpl 56 39340 0 39340 1 0 1 1 0 8 1 knotepl 112 317 0 303 1 0 1 1 0 8 0 kqueuepl 168 2162 0 2160 1 0 1 1 0 8 0 pipepl 336 254 0 246 9 7 2 2 0 8 0 fdescpl 496 6092 0 6076 3 0 3 3 0 8 0 filepl 152 19061 0 18974 5 0 5 5 0 8 1 lockfpl 104 672 0 671 1 0 1 1 0 8 0 lockfspl 48 266 0 265 1 0 1 1 0 8 0 sessionpl 144 21 0 10 1 0 1 1 0 8 0 pgrppl 48 57 0 46 1 0 1 1 0 8 0 ucredpl 96 1968 0 1959 1 0 1 1 0 8 0 zombiepl 144 6077 0 6076 1 0 1 1 0 8 0 processpl 1080 6130 0 6076 4 0 4 4 0 8 0 procpl 672 13102 0 13040 6 0 6 6 0 8 0 sosppl 168 27 0 27 6 5 1 1 0 8 1 sockpl 432 3663 0 3622 8 1 7 7 0 8 2 mcl64k 65536 23 0 0 3 0 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 282 0 0 18 0 18 18 0 8 0 mtagpl 96 439 0 0 10 0 10 10 0 8 0 mbufpl 256 1152 0 0 66 1 65 65 0 8 0 bufpl 280 11686 0 5437 447 0 447 447 0 8 0 anonpl 24 442368 0 435501 102 27 75 75 0 186 24 amapchunkpl 152 30159 0 29955 50 39 11 28 0 158 0 amappl16 200 20284 0 19975 52 26 26 29 0 8 8 amappl15 192 3 0 0 1 0 1 1 0 8 0 amappl14 184 28 0 22 1 0 1 1 0 8 0 amappl13 176 2736 0 2734 1 0 1 1 0 8 0 amappl12 168 506 0 503 1 0 1 1 0 8 0 amappl11 160 940 0 922 1 0 1 1 0 8 0 amappl10 152 21 0 15 1 0 1 1 0 8 0 amappl9 144 264 0 262 1 0 1 1 0 8 0 amappl8 136 3349 0 3266 3 0 3 3 0 8 0 amappl7 128 524 0 513 1 0 1 1 0 8 0 amappl6 120 87 0 66 1 0 1 1 0 8 0 amappl5 112 7694 0 7672 1 0 1 1 0 8 0 amappl4 104 853 0 821 1 0 1 1 0 8 0 amappl3 96 2941 0 2933 1 0 1 1 0 8 0 amappl2 88 47901 0 47807 4 1 3 3 0 8 0 amappl1 80 174471 0 173983 26 14 12 21 0 8 0 amappl 88 13546 0 13446 3 0 3 3 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 64 127 0 10 2 0 2 2 0 8 0 uaddrrnd 24 6118 0 6082 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6118 0 6082 1 0 1 1 0 8 0 vmmpekpl 168 32223 0 32190 2 0 2 2 0 8 0 vmmpepl 168 760606 0 758908 121 34 87 89 0 357 9 vmsppl 368 6117 0 6082 4 0 4 4 0 8 0 rwobjpl 56 156333 0 155204 34 14 20 20 0 8 4 pdppl 4096 12243 0 12184 79 18 61 63 0 8 2 pvpl 32 2070419 0 2060363 215 89 126 129 0 265 31 pmappl 232 6117 0 6082 4 1 3 3 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 414 0 50 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pfi_ifhead_RB_REMOVE(ffffffff828ec918,ffff800000add500) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6980) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6980) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000bb0000,ffff800000af6980) at if_delgroup+0x193 sys/net/if.c:2700 if_detach(ffff800000bb0000) at if_detach+0x1cb sys/net/if.c:1049 tun_clone_destroy(ffff800000bb0000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff80002128d990) 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(ffff80002128da60) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e3fe6a8,7,fffffd807f7b77e0,ffff800021296010) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd806a78e310,ffff800021296010) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806a78e310,ffff800021296010) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806a78e310,ffff800021296010) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806a78e310,ffff800021296010) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021296010) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021296010,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200 sys_exit(ffff800021296010,ffff80002128dcf0,ffff80002128dd40) at sys_exit+0x16 sys/kern/kern_exit.c:96 syscall(ffff80002128ddc0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002128ddc0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcfbc0, 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