kernel: protection fault trap, code=0 Stopped at pf_anchor_global_RB_REMOVE+0x58: movq 0(%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 pf_anchor_global_RB_REMOVE(ffffffff82a87fb0,ffff800000c44800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c44c90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000be9000,3,ffff80002e37b500) at pfioctl+0x925e sys/net/pf_ioctl.c:1722 VOP_IOCTL(fffffd806f690b88,cd60441a,ffff800000be9000,3,fffffd807f7d8360,ffff80002e37b500) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067de3150,cd60441a,ffff800000be9000,ffff80002e37b500) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e37b500,ffff800021202c38,ffff800021202c90) at sys_ioctl+0x4a2 syscall(ffff800021202d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021202d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6415a804a00, count: -8 ddb{0}> show registers rdi 0xffffffff82a87fb0 pf_anchors rsi 0xffff800000c44800 rbp 0xffff800021202790 rbx 0xffffffff82a87fb0 pf_anchors rdx 0 rcx 0xfffffd8003582be0 rax 0xffff80002e37b500 r8 0x101010101010101 r9 0x8080808080808080 r10 0x19156481c9ce914a r11 0x996ab84f3e0e39d2 r12 0x7ed988c655f42c86 r13 0xffffffff82a87fb8 pf_main_anchor r14 0xffff800000c44800 r15 0xdead007fdeadbeef rip 0xffffffff819e3688 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021202740 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.6) pid=75 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002e37b7a0,0xffff800028126010 process=0xffff80002952edd0 user=0xffff8000211fd000, vmspace=0xfffffd807bed5478 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22027 55766 47632 0 2 0 syz-executor.7 22027 13712 47632 0 3 0x4000080 fsleep syz-executor.7 22027 512671 47632 0 2 0x4000000 syz-executor.7 94900 344602 11634 0 2 0 syz-executor.0 94900 88468 11634 0 3 0x4000080 fsleep syz-executor.0 94900 180533 11634 0 2 0x4000000 syz-executor.0 94900 356914 11634 0 2 0x4000000 syz-executor.0 18195 6542 35289 0 7 0 syz-executor.6 *18195 75 35289 0 7 0x4000000 syz-executor.6 11634 392986 72424 0 2 0x2 syz-executor.0 49301 68678 72424 0 3 0x82 piperd syz-executor.1 68261 68314 0 0 3 0x14200 acct acct 20162 93142 72424 0 3 0x82 nanoslp syz-executor.2 38846 353243 72424 0 3 0x82 piperd syz-executor.5 47632 13008 72424 0 2 0x2 syz-executor.7 35289 170931 72424 0 3 0x82 nanoslp syz-executor.6 54192 472212 1 0 3 0x100083 ttyin getty 87440 516644 0 0 3 0x14200 bored sosplice 62062 193957 72424 0 3 0x82 piperd syz-executor.4 33580 398118 72424 0 3 0x82 piperd syz-executor.3 72424 220663 98508 0 3 0x82 thrsleep syz-fuzzer 72424 449125 98508 0 3 0x4000082 nanoslp syz-fuzzer 72424 299711 98508 0 3 0x4000082 thrsleep syz-fuzzer 72424 247393 98508 0 3 0x4000082 thrsleep syz-fuzzer 72424 373584 98508 0 3 0x4000082 kqread syz-fuzzer 72424 393888 98508 0 3 0x4000082 thrsleep syz-fuzzer 72424 411745 98508 0 3 0x4000082 nanoslp syz-fuzzer 72424 515736 98508 0 3 0x4000082 thrsleep syz-fuzzer 72424 94429 98508 0 3 0x4000082 thrsleep syz-fuzzer 98508 259038 50036 0 3 0x10008a sigsusp ksh 50036 162157 45848 0 3 0x9a kqread sshd 45848 262369 1 0 3 0x88 kqread sshd 8861 484584 48011 74 3 0x1100092 bpf pflogd 48011 502429 1 0 3 0x80 netio pflogd 90581 183094 53009 73 3 0x1100090 kqread syslogd 53009 487049 1 0 3 0x100082 netio syslogd 86093 100495 1 0 3 0x100080 kqread resolvd 61629 17881 14754 77 3 0x100092 kqread dhcpleased 48817 382604 14754 77 3 0x100092 kqread dhcpleased 14754 24061 1 0 3 0x80 kqread dhcpleased 58802 342591 0 0 3 0x14200 bored smr 35907 115599 0 0 3 0x14200 pgzero zerothread 37003 124980 0 0 3 0x14200 aiodoned aiodoned 12905 144759 0 0 3 0x14200 syncer update 81113 223305 0 0 3 0x14200 cleaner cleaner 89033 436696 0 0 3 0x14200 reaper reaper 57539 270505 0 0 3 0x14200 pgdaemon pagedaemon 3012 452422 0 0 3 0x14200 bored viomb 62626 378802 0 0 3 0x40014200 acpi0 acpi0 36083 425579 0 0 3 0x40014200 idle1 86336 3211 0 0 3 0x14200 bored softnet 20643 470155 0 0 3 0x14200 bored systqmp 15794 510589 0 0 3 0x14200 bored systq 4120 28454 0 0 3 0x40014200 bored softclock 51129 54152 0 0 3 0x40014200 idle0 1 202127 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 18195 (syz-executor.6) thread 0xffff80002e37b500 (75) exclusive rwlock pf_lock r = 0 (0xffffffff8292c5d0) #0 witness_lock+0x44d #1 pfioctl+0x5be8 sys/net/pf_ioctl.c:1610 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff82915860) #0 witness_lock+0x44d #1 pfioctl+0x3708 sys/net/pf_ioctl.c:1610 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff8292c630) #0 witness_lock+0x44d #1 pfioctl+0x15e sys/net/pf_ioctl.c:1150 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a44cb0) #0 witness_lock+0x44d #1 vn_ioctl+0x41 sys/kern/vfs_vnops.c:514 #2 sys_ioctl+0x4a2 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10234 6509K 7320K 78643K 32076 0 pcb 13 18K 23K 78643K 938 0 rtable 188 11K 12K 78643K 2902 0 ifaddr 97 20K 22K 78643K 1463 0 sysctl 3 1K 3K 78643K 8 0 counters 56 35K 36K 78643K 212 0 ioctlops 1 4K 8K 78643K 12898 0 iov 0 0K 28K 78643K 644 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1499 94K 94K 78643K 7337 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 65 0 VM map 2 1K 1K 78643K 2 0 sem 18 3K 3K 78643K 421 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 89K 78643K 7577 0 sigio 0 0K 0K 78643K 87 0 proc 71 87K 124K 78643K 1418 0 subproc 104 6K 6K 78643K 416 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 507 0 in_multi 61 4K 7K 78643K 543 0 ether_multi 1 0K 0K 78643K 58 0 mrt 1 0K 0K 78643K 27 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 325 1447K 1447K 78643K 325 0 exec 0 0K 2K 78643K 1732 0 tdb 3 0K 0K 78643K 3 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 335 385K 397K 78643K 46558 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 304 0 NDP 14 0K 2K 78643K 161 0 temp 151 4750K 5010K 78643K 82987 0 kqueue 13 20K 26K 78643K 427 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 515 0 512 5 3 2 4 0 8 1 rtentry 112 444 0 374 4 1 3 4 0 8 0 unpcb 136 2839 0 2824 33 32 1 8 0 8 0 syncache 296 11 0 11 4 4 0 1 0 8 0 tcpqe 32 24 0 24 3 3 0 1 0 8 0 tcpcb 736 1843 0 1835 69 67 2 13 0 8 1 arp 120 70 0 56 1 0 1 1 0 8 0 inpcb 312 5019 0 5008 84 82 2 11 0 8 1 rttmr 72 7 0 7 2 2 0 1 0 8 0 nd6 48 107 0 92 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 32 0 24 1 0 1 1 0 8 0 ppxss 1248 36 0 36 8 8 0 1 0 8 0 pfstscr 40 57 0 54 2 1 1 1 0 8 0 pffrag 232 104 0 102 4 3 1 1 0 482 0 pffrnode 88 102 0 100 4 3 1 1 0 8 0 pffrent 40 514 0 512 4 3 1 1 0 8 0 pfosfp 40 1435 0 1009 5 0 5 5 0 8 0 pfosfpen 112 1435 0 717 21 0 21 21 0 8 0 pfrktable 1344 745 0 736 3 2 1 1 0 8 0 pftag 88 26 0 16 1 0 1 1 0 8 0 pfqueue 264 10 0 10 3 3 0 1 0 8 0 pfstitem 24 101 0 96 1 0 1 1 0 8 0 pfstkey 112 135 0 130 1 0 1 1 0 8 0 pfstate 320 80 0 76 2 1 1 2 0 8 0 pfrule 1360 5924 0 5160 86 22 64 64 0 8 0 art_heap8 4096 4 0 3 3 2 1 3 0 8 0 art_heap4 256 1841 0 1545 32 13 19 29 0 8 0 art_table 32 1845 0 1548 4 1 3 4 0 8 0 art_node 16 443 0 382 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 36 1 0 1 1 0 8 0 semapl 112 414 0 398 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 10817 0 9366 91 0 91 91 0 8 0 ffsino 272 10817 0 9366 97 0 97 97 0 8 0 nchpl 144 20211 0 18567 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 74878 0 74878 2 1 1 2 0 8 1 percpumem 16 118 0 78 1 0 1 1 0 8 0 vcpupl 2048 20 0 0 3 0 3 3 0 8 0 vmpool 560 45 0 25 3 1 2 2 0 8 0 pfiaddrpl 120 247 0 229 2 1 1 1 0 8 0 scsiplug 72 14 0 14 4 4 0 1 0 8 0 scxspl 216 58094 0 58094 17 16 1 8 0 8 1 plimitpl 152 764 0 748 1 0 1 1 0 8 0 sigapl 424 7854 0 7811 8 1 7 8 0 8 0 futexpl 64 65627 0 65625 1 0 1 1 0 8 0 knotepl 120 606 0 0 14 0 14 14 0 8 0 kqueuepl 216 1682 0 1673 42 41 1 5 0 8 0 pipepl 336 1652 0 1624 33 30 3 8 0 8 0 fdescpl 496 7818 0 7792 6 2 4 5 0 8 0 filepl 152 48582 0 48338 87 75 12 22 0 8 2 lockfpl 104 5212 0 5210 14 13 1 4 0 8 0 lockfspl 48 2130 0 2128 2 1 1 2 0 8 0 sessionpl 144 49 0 32 1 0 1 1 0 8 0 pgrppl 48 145 0 128 1 0 1 1 0 8 0 ucredpl 96 5258 0 5246 1 0 1 1 0 8 0 zombiepl 144 7812 0 7811 1 0 1 1 0 8 0 processpl 1064 7854 0 7811 5 0 5 5 0 8 0 procpl 672 22351 0 22294 23 17 6 9 0 8 0 srpgc 96 38 0 38 6 6 0 1 0 8 0 sosppl 168 48 0 48 8 8 0 1 0 8 0 sockpl 480 8377 0 8348 216 205 11 28 0 8 6 mcl64k 65536 25 0 0 4 1 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 21 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 274 0 0 20 0 20 20 0 8 1 mtagpl 96 1021 0 0 25 0 25 25 0 8 0 mbufpl 256 1411 0 0 86 0 86 86 0 8 0 bufpl 288 14474 0 8144 453 0 453 453 0 8 0 anonpl 24 1527930 0 1510885 254 108 146 166 0 186 13 amapchunkpl 152 131929 0 131194 58 24 34 39 0 158 0 amappl16 200 22598 0 22024 130 91 39 52 0 8 6 amappl15 192 1373 0 1373 1 0 1 1 0 8 1 amappl14 184 1308 0 1297 1 0 1 1 0 8 0 amappl13 176 492 0 490 1 0 1 1 0 8 0 amappl12 168 410 0 409 4 3 1 1 0 8 0 amappl11 160 671 0 647 3 1 2 2 0 8 1 amappl10 152 1639 0 1630 1 0 1 1 0 8 0 amappl9 144 1705 0 1701 1 0 1 1 0 8 0 amappl8 136 2227 0 2131 4 0 4 4 0 8 0 amappl7 128 1283 0 1271 1 0 1 1 0 8 0 amappl6 120 1560 0 1542 2 1 1 2 0 8 0 amappl5 112 7861 0 7846 1 0 1 1 0 8 0 amappl4 104 2691 0 2658 2 1 1 2 0 8 0 amappl3 96 23124 0 23079 2 0 2 2 0 8 0 amappl2 88 9118 0 9057 3 1 2 3 0 8 0 amappl1 80 188639 0 188030 23 8 15 20 0 8 0 amappl 88 45517 0 45327 7 2 5 6 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 7863 0 7817 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7863 0 7817 1 0 1 1 0 8 0 vmmpekpl 168 62457 0 62393 5 1 4 4 0 8 0 vmmpepl 168 773372 0 770940 298 159 139 174 0 357 8 vmsppl 368 7862 0 7817 6 1 5 5 0 8 0 rwobjpl 56 195684 0 187997 124 12 112 115 0 8 0 pdppl 4096 15733 0 15654 445 356 89 91 0 8 10 pvpl 32 2985340 0 2964673 446 209 237 257 0 265 33 pmappl 248 7862 0 7817 5 1 4 4 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1531 0 579 28 0 28 28 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82a87fb0,ffff800000c44800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c44c90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000be9000,3,ffff80002e37b500) at pfioctl+0x925e sys/net/pf_ioctl.c:1722 VOP_IOCTL(fffffd806f690b88,cd60441a,ffff800000be9000,3,fffffd807f7d8360,ffff80002e37b500) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067de3150,cd60441a,ffff800000be9000,ffff80002e37b500) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e37b500,ffff800021202c38,ffff800021202c90) at sys_ioctl+0x4a2 syscall(ffff800021202d00) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021202d00) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6415a804a00, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffe6840, count: -3