login: 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(ffffffff828f3358,ffff800000add600) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6900) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6900) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000b16000,ffff800000af6900) at if_delgroup+0x193 sys/net/if.c:2676 if_detach(ffff800000b16000) at if_detach+0x1ab sys/net/if.c:1039 tun_clone_destroy(ffff800000b16000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff800021ed7430) at if_clone_destroy+0x146 sys/net/if.c:1198 tun_dev_close(5d00,7) at tun_dev_close+0x140 sys/net/if_tun.c:476 spec_close(ffff800021ed7500) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ecab408,7,fffffd807f7b7840,ffff80002123c7e0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd8069c56610,ffff80002123c7e0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8069c56610,ffff80002123c7e0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8069c56610,ffff80002123c7e0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8069c56610,ffff80002123c7e0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002123c7e0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002123c7e0,0,19,1) at exit1+0x335 sys/kern/kern_exit.c:200 postsig(ffff80002123c7e0,19) at postsig+0x59c sigexit sys/kern/kern_sig.c:1494 [inline] postsig(ffff80002123c7e0,19) at postsig+0x59c sys/kern/kern_sig.c:1423 userret(ffff80002123c7e0) at userret+0x189 sys/kern/kern_sig.c:1914 syscall(ffff800021ed7980) at syscall+0x55c mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800021ed7980) at syscall+0x55c sys/arch/amd64/amd64/trap.c:612 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdb320, count: -18 ddb{0}> show registers rdi 0xffffffff828f3358 pfi_ifs rsi 0xffff800000add600 rbp 0xffff800021ed7290 rbx 0xdeafbeaddeafbead rdx 0 rcx 0xffff800000af6c00 rax 0xffff800000add610 r8 0xf8 r9 0x8080808080808080 r10 0x8ff7999f0bc9f2bf r11 0xc964a7f4cb8ad59a r12 0xdeafbeaddeafbead r13 0xffff800000b79360 r14 0xffff800000add600 r15 0xffffffff828f3358 pfi_ifs rip 0xffffffff8189be30 pfi_ifhead_RB_REMOVE+0x50 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800021ed7230 ss 0x10 pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx ddb{0}> show proc PROC (syz-executor.0) pid=339531 stat=onproc flags process=a proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002123c2a0,0xffff8000211c2a98 process=0xffff800021234870 user=0xffff800021ed2000, vmspace=0xfffffd8008492730 estcpu=36, cpticks=2, pctcpu=0.49 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97611 81065 89887 0 3 0x82 piperd syz-executor.1 33194 272429 1 0 3 0x100083 ttyin getty 86185 85159 0 0 3 0x14200 bored sosplice 89887 23991 91131 0 3 0x82 thrsleep syz-fuzzer 89887 96870 91131 0 3 0x4000082 nanoslp syz-fuzzer 89887 113340 91131 0 3 0x4000082 thrsleep syz-fuzzer 89887 502148 91131 0 3 0x4000082 thrsleep syz-fuzzer 89887 188659 91131 0 3 0x4000082 thrsleep syz-fuzzer 89887 101951 91131 0 3 0x4000082 thrsleep syz-fuzzer 89887 341420 91131 0 3 0x4000082 thrsleep syz-fuzzer 89887 50263 91131 0 3 0x4000082 kqread syz-fuzzer 91131 390304 65178 0 3 0x10008a sigsusp ksh 65178 58033 83080 0 3 0x92 select sshd 83080 431636 1 0 3 0x80 select sshd 89553 446376 9718 74 3 0x100092 bpf pflogd 9718 252778 1 0 3 0x80 netio pflogd 32132 272980 7009 73 3 0x100090 kqread syslogd 7009 384374 1 0 3 0x100082 netio syslogd 9959 109042 1 77 7 0x100090 dhclient 61726 359942 1 0 3 0x80 poll dhclient 56579 228508 0 0 3 0x14200 bored smr 77895 275242 0 0 3 0x14200 pgzero zerothread 52038 169069 0 0 3 0x14200 aiodoned aiodoned 68161 130008 0 0 3 0x14200 syncer update 41615 265112 0 0 3 0x14200 cleaner cleaner 9573 523421 0 0 3 0x14200 reaper reaper 27179 101254 0 0 3 0x14200 pgdaemon pagedaemon 8672 126226 0 0 3 0x14200 bored crynlk 24710 71709 0 0 3 0x14200 bored crypto 84035 483508 0 0 3 0x14200 bored viomb 42447 220688 0 0 3 0x40014200 acpi0 acpi0 54484 386242 0 0 3 0x40014200 idle1 20130 406691 0 0 3 0x14200 bored softnet 30215 303432 0 0 2 0x14200 systqmp 61335 161081 0 0 3 0x14200 bored systq 76208 70514 0 0 3 0x40014200 bored softclock 15689 190610 0 0 3 0x40014200 idle0 1 217899 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 9574 6479K 7144K 78643K 21558 0 pcb 13 8K 8K 78643K 357 0 rtable 92 4K 5K 78643K 1021 0 ifaddr 91 17K 20K 78643K 437 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 186 0 ioctlops 0 0K 4K 78643K 1747 0 iov 0 0K 24K 78643K 266 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 6063 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 33 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 4 9K 25K 78643K 9035 0 sigio 0 0K 0K 78643K 21 0 proc 64 63K 95K 78643K 865 0 subproc 23 1K 2K 78643K 102 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 512 0 in_multi 22 1K 2K 78643K 360 0 ether_multi 1 0K 0K 78643K 64 0 mrt 0 0K 0K 78643K 41 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 711 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 214 176K 176K 78643K 22396 0 UVM aobj 11 6K 6K 78643K 11 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 395 0 NDP 17 0K 0K 78643K 104 0 temp 156 3989K 4057K 78643K 52273 0 kqueue 3 4K 14K 78643K 227 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 15 0 11 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 198 0 196 1 0 1 1 0 8 0 rtentry 112 133 0 100 2 0 2 2 0 8 0 unpcb 120 1790 0 1773 3 1 2 2 0 8 1 syncache 296 36 0 36 6 6 0 1 0 8 0 tcpqe 32 110 4 110 6 6 0 1 0 8 0 tcpcb 736 1278 0 1268 25 23 2 6 0 8 0 inpcb 296 3344 0 3335 12 10 2 3 0 8 1 rttmr 72 16 0 16 2 2 0 1 0 8 0 nd6 48 28 0 25 1 0 1 1 0 8 0 pkpcb 40 34 0 34 7 7 0 1 0 8 0 kcovpl 48 6 0 5 1 0 1 1 0 8 0 swfcl 56 8 0 0 1 0 1 1 0 8 0 ppxss 1128 17 0 17 4 4 0 1 0 8 0 pffrent 40 9 0 9 3 3 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 3 0 0 1 0 1 1 0 8 0 pfstitem 24 165 0 138 1 0 1 1 0 8 0 pfstkey 112 165 0 138 2 1 1 2 0 8 0 pfstate 328 165 0 138 7 4 3 6 0 8 0 pfrule 1360 77 0 45 4 1 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 488 0 295 14 1 13 13 0 8 0 art_table 32 489 0 295 2 0 2 2 0 8 0 art_node 16 132 0 95 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 11 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12160 0 10752 89 0 89 89 0 8 0 ffsino 272 12160 0 10752 95 0 95 95 0 8 0 nchpl 144 22263 0 20673 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 57606 0 57606 1 0 1 1 0 8 1 percpumem 16 104 0 71 1 0 1 1 0 8 0 vcpupl 1984 14 0 0 2 0 2 2 0 8 0 vmpool 560 21 0 7 1 0 1 1 0 8 0 pfiaddrpl 120 19 0 0 1 0 1 1 0 8 0 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 216 65424 0 65424 13 12 1 7 0 8 1 plimitpl 152 378 0 370 1 0 1 1 0 8 0 sigapl 424 9263 0 9231 7 3 4 7 0 8 0 futexpl 56 60559 0 60559 1 0 1 1 0 8 1 knotepl 112 402 0 384 1 0 1 1 0 8 0 kqueuepl 168 4331 0 4322 1 0 1 1 0 8 0 pipepl 336 303 0 293 17 15 2 2 0 8 1 fdescpl 496 9226 0 9211 3 0 3 3 0 8 0 filepl 152 31215 0 31124 7 1 6 6 0 8 1 lockfpl 104 946 0 945 1 0 1 1 0 8 0 lockfspl 48 342 0 341 1 0 1 1 0 8 0 sessionpl 144 25 0 14 1 0 1 1 0 8 0 pgrppl 48 41 0 30 1 0 1 1 0 8 0 ucredpl 96 3611 0 3602 1 0 1 1 0 8 0 zombiepl 144 9232 0 9231 1 0 1 1 0 8 0 processpl 1072 9263 0 9231 4 1 3 4 0 8 0 procpl 672 20465 0 20426 8 4 4 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 116 0 116 11 10 1 1 0 8 1 sockpl 432 5392 0 5364 21 14 7 7 0 8 3 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 15 0 0 2 0 2 2 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 333 0 0 18 1 17 18 0 8 0 mtagpl 96 447 0 0 9 0 9 9 0 8 0 mbufpl 256 1111 0 0 60 0 60 60 0 8 0 bufpl 280 13958 0 7709 447 0 447 447 0 8 0 anonpl 16 719155 0 711096 137 102 35 56 0 124 0 amapchunkpl 152 41063 0 40829 49 38 11 24 0 158 1 amappl16 192 33308 0 33028 103 87 16 35 0 8 1 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 1413 0 1408 1 0 1 1 0 8 0 amappl13 168 1585 0 1582 1 0 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 3146 0 3129 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 18 0 17 2 1 1 1 0 8 0 amappl8 128 6305 0 6197 4 0 4 4 0 8 0 amappl7 120 296 0 287 1 0 1 1 0 8 0 amappl6 112 84 0 71 1 0 1 1 0 8 0 amappl5 104 9795 0 9777 1 0 1 1 0 8 0 amappl4 96 3556 0 3522 1 0 1 1 0 8 0 amappl3 88 1795 0 1787 1 0 1 1 0 8 0 amappl2 80 74103 0 74036 3 1 2 3 0 8 0 amappl1 72 272325 0 271870 26 16 10 19 0 8 0 amappl 80 20903 0 20824 2 0 2 2 0 84 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 9247 0 9218 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9247 0 9218 1 0 1 1 0 8 0 vmmpekpl 168 48725 0 48684 2 0 2 2 0 8 0 vmmpepl 168 1168039 0 1166545 175 92 83 89 0 357 4 vmsppl 368 9246 0 9218 5 2 3 3 0 8 0 pdppl 4096 18501 0 18450 78 23 55 55 0 8 4 pvpl 32 3337360 0 3326255 340 243 97 141 0 265 1 pmappl 232 9246 0 9218 3 1 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 420 0 68 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pfi_ifhead_RB_REMOVE(ffffffff828f3358,ffff800000add600) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80 pfi_detach_ifgroup(ffff800000af6900) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline] pfi_detach_ifgroup(ffff800000af6900) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304 if_delgroup(ffff800000b16000,ffff800000af6900) at if_delgroup+0x193 sys/net/if.c:2676 if_detach(ffff800000b16000) at if_detach+0x1ab sys/net/if.c:1039 tun_clone_destroy(ffff800000b16000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325 if_clone_destroy(ffff800021ed7430) at if_clone_destroy+0x146 sys/net/if.c:1198 tun_dev_close(5d00,7) at tun_dev_close+0x140 sys/net/if_tun.c:476 spec_close(ffff800021ed7500) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ecab408,7,fffffd807f7b7840,ffff80002123c7e0) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177 vn_closefile(fffffd8069c56610,ffff80002123c7e0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8069c56610,ffff80002123c7e0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8069c56610,ffff80002123c7e0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8069c56610,ffff80002123c7e0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002123c7e0) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff80002123c7e0,0,19,1) at exit1+0x335 sys/kern/kern_exit.c:200 postsig(ffff80002123c7e0,19) at postsig+0x59c sigexit sys/kern/kern_sig.c:1494 [inline] postsig(ffff80002123c7e0,19) at postsig+0x59c sys/kern/kern_sig.c:1423 userret(ffff80002123c7e0) at userret+0x189 sys/kern/kern_sig.c:1914 syscall(ffff800021ed7980) at syscall+0x55c mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800021ed7980) at syscall+0x55c sys/arch/amd64/amd64/trap.c:612 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdb320, count: -18 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+0x48 sys/dev/kcov.c:149 __mp_acquire_count(ffffffff828b8998,2) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:433 sleep_finish(ffff800021200708,1) at sleep_finish+0x111 sys/kern/kern_synch.c:427 sleep_finish_all(ffff800021200708,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:457 [inline] sleep_finish_all(ffff800021200708,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:402 tsleep(ffffffff829057d8,118,ffffffff824210ca,4156f5) at tsleep+0x1f2 sys/kern/kern_synch.c:163 doppoll(ffff8000211c3a48,7f7ffffeef00,3,ffff800021200898,0,ffff800021200950) at doppoll+0x577 sys_poll(ffff8000211c3a48,ffff800021200900,ffff800021200950) at sys_poll+0xa7 syscall(ffff8000212009d0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000212009d0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeeee0, count: -13