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(ffffffff82b485d0,ffff800000c42000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c42490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000bec000,3,ffff80002118ed20) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f6f5c68,cd60441a,ffff800000bec000,3,fffffd807f7d84e0,ffff80002118ed20) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807e5c70a8,cd60441a,ffff800000bec000,ffff80002118ed20) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002118ed20,ffff80002d48b638,ffff80002d48b690) at sys_ioctl+0x4a2 syscall(ffff80002d48b700) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002d48b700) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf1d543ba5d0, count: -8 ddb{0}> show registers rdi 0xffffffff82b485d0 pf_anchors rsi 0xffff800000c42000 rbp 0xffff80002d48b1a0 rbx 0xffffffff82b485d0 pf_anchors rdx 0 rcx 0xfffffd8003708880 rax 0xffff80002118ed20 r8 0x101010101010101 r9 0x8080808080808080 r10 0xac4df88924e66e0e r11 0x891210cdefc822a3 r12 0x14b2244fe502d2fc r13 0xffffffff82b485d8 pf_main_anchor r14 0xffff800000c42000 r15 0xdead007fdead4110 rip 0xffffffff8216d9a8 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80002d48b150 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.0) pid=87620 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002c5d0d20,0xffff8000ffff37b8 process=0xffff80002c5e6588 user=0xffff80002d486000, vmspace=0xfffffd80680f7198 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98686 305149 50990 0 3 0x80 nanoslp syz-executor.1 98686 460769 50990 0 3 0x4000080 fsleep syz-executor.1 6507 470801 49725 0 3 0x80 nanoslp syz-executor.3 6507 181278 49725 0 3 0x4000080 fsleep syz-executor.3 29410 306079 36332 0 2 0 syz-executor.0 *29410 87620 36332 0 7 0x4000000 syz-executor.0 42683 132566 66462 60928 2 0x10 syz-executor.2 42683 7647 66462 60928 3 0x4000090 fsleep syz-executor.2 82470 111796 73306 0 3 0x82 piperd syz-executor.5 66462 523549 73306 0 3 0x82 nanoslp syz-executor.2 87332 60356 73306 0 3 0x82 nanoslp syz-executor.7 27939 240364 0 0 3 0x14200 acct acct 36332 71377 73306 0 3 0x82 nanoslp syz-executor.0 49725 32499 73306 0 3 0x82 nanoslp syz-executor.3 78539 269749 0 0 3 0x14280 nfsidl nfsio 48879 368653 0 0 3 0x14280 nfsidl nfsio 63428 474235 0 0 3 0x14280 nfsidl nfsio 61153 277714 0 0 3 0x14280 nfsidl nfsio 18395 165096 0 0 3 0x14280 nfsidl nfsio 42629 452850 0 0 3 0x14280 nfsidl nfsio 64915 55596 0 0 3 0x14280 nfsidl nfsio 3429 277285 0 0 3 0x14280 nfsidl nfsio 92273 208305 0 0 3 0x14280 nfsidl nfsio 46830 405925 0 0 3 0x14280 nfsidl nfsio 82317 398103 0 0 3 0x14280 nfsidl nfsio 61509 144658 0 0 3 0x14280 nfsidl nfsio 66639 367718 0 0 3 0x14280 nfsidl nfsio 17188 21148 0 0 3 0x14280 nfsidl nfsio 38300 432836 0 0 3 0x14280 nfsidl nfsio 8106 85822 0 0 3 0x14280 nfsidl nfsio 40857 32762 0 0 3 0x14280 nfsidl nfsio 28018 393305 0 0 3 0x14280 nfsidl nfsio 71046 508348 0 0 3 0x14280 nfsidl nfsio 55315 121577 0 0 3 0x14280 nfsidl nfsio 34456 12459 73306 0 3 0x82 piperd syz-executor.6 59318 259660 0 0 3 0x14200 bored sosplice 50990 468329 73306 0 3 0x82 nanoslp syz-executor.1 73306 170243 92136 0 3 0x82 thrsleep syz-fuzzer 73306 255739 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 447708 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 119552 92136 0 3 0x4000082 kqread syz-fuzzer 73306 462375 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 305572 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 143527 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 140225 92136 0 3 0x4000082 thrsleep syz-fuzzer 73306 181354 92136 0 3 0x4000082 thrsleep syz-fuzzer 92136 313804 44353 0 3 0x10008a sigsusp ksh 44353 80125 30489 0 3 0x9a kqread sshd 92860 12550 1 0 3 0x100083 ttyopn getty 30489 65366 1 0 3 0x88 kqread sshd 74265 350436 88507 74 3 0x1100092 bpf pflogd 88507 509192 1 0 3 0x80 netio pflogd 58324 414988 11544 73 3 0x1100090 kqread syslogd 11544 476545 1 0 3 0x100082 netio syslogd 73750 16673 1 0 3 0x100080 kqread resolvd 86174 267598 13199 77 3 0x100092 kqread dhcpleased 46299 372336 13199 77 3 0x100092 kqread dhcpleased 13199 102471 1 0 3 0x80 kqread dhcpleased 55590 308747 0 0 3 0x14200 bored smr 1015 184498 0 0 2 0x14200 zerothread 57609 252754 0 0 3 0x14200 aiodoned aiodoned 53955 431471 0 0 3 0x14200 syncer update 23125 83006 0 0 3 0x14200 cleaner cleaner 6923 25547 0 0 3 0x14200 reaper reaper 98107 508744 0 0 3 0x14200 pgdaemon pagedaemon 19671 258374 0 0 3 0x14200 bored viomb 60588 85513 0 0 3 0x40014200 acpi0 acpi0 74497 225096 0 0 7 0x40014200 idle1 90757 313467 0 0 3 0x14200 bored softnet 83501 238175 0 0 3 0x14200 bored systqmp 13705 470229 0 0 3 0x14200 bored systq 59362 80621 0 0 3 0x40014200 bored softclock 65465 86223 0 0 3 0x40014200 idle0 1 42535 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 29410 (syz-executor.0) thread 0xffff80002118ed20 (87620) exclusive rwlock pf_lock r = 0 (0xffffffff8298b300) #0 witness_lock+0x44d #1 pfioctl+0x5b38 sys/net/pf_ioctl.c:1601 #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 (0xffffffff8292efd0) #0 witness_lock+0x44d #1 pfioctl+0x3690 sys/net/pf_ioctl.c:1601 #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 (0xffffffff82b26890) #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 10223 6572K 7332K 78643K 25825 0 pcb 13 18K 23K 78643K 1457 0 rtable 215 8K 15K 78643K 2945 0 ifaddr 84 20K 26K 78643K 1807 0 sysctl 3 1K 1K 78643K 3 0 counters 54 35K 36K 78643K 340 0 ioctlops 1 4K 4K 78643K 3607 0 iov 0 0K 16K 78643K 991 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1432 89K 90K 78643K 6584 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 125 0 VM map 2 1K 1K 78643K 2 0 sem 13 5K 10K 78643K 72 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 93K 78643K 8794 0 sigio 0 0K 0K 78643K 64 0 proc 71 87K 136K 78643K 1549 0 subproc 91 5K 6K 78643K 422 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 372 0 in_multi 84 5K 6K 78643K 596 0 ether_multi 1 0K 0K 78643K 96 0 mrt 1 0K 0K 78643K 51 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 1965 0 pfkey data 0 0K 4K 78643K 284 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 517 869K 882K 78643K 109224 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 382 0 NDP 12 0K 2K 78643K 229 0 temp 155 4763K 8857K 78643K 62848 0 kqueue 12 18K 27K 78643K 468 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 120 423 0 420 4 3 1 2 0 8 0 rtentry 112 563 0 471 4 0 4 4 0 8 0 unpcb 136 4516 0 4499 56 55 1 9 0 8 0 syncache 296 20 0 20 7 7 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 736 3106 0 3085 104 101 3 16 0 8 0 arp 120 79 0 62 1 0 1 1 0 8 0 inpcb 304 13385 0 13373 126 117 9 14 0 8 7 rttmr 72 13 0 13 4 4 0 1 0 8 0 nd6 48 111 0 90 1 0 1 1 0 8 0 pkpcb 40 3812 0 3812 10 9 1 1 0 8 1 kcovpl 48 32 0 25 1 0 1 1 0 8 0 ppxss 1248 67 0 67 13 12 1 1 0 8 1 pfstscr 40 11 0 11 4 4 0 1 0 8 0 pffrag 232 97 0 96 5 4 1 1 0 482 0 pffrnode 88 97 0 96 5 4 1 1 0 8 0 pffrent 40 418 0 417 5 4 1 1 0 8 0 pfosfp 40 1436 0 1012 5 0 5 5 0 8 0 pfosfpen 112 1436 0 720 21 0 21 21 0 8 0 pfrktable 1344 576 0 574 6 5 1 2 0 8 0 pftag 88 9 0 8 1 0 1 1 0 8 0 pfqueue 264 8 0 8 1 1 0 1 0 8 0 pfstitem 24 43 0 41 1 0 1 1 0 8 0 pfstkey 112 61 0 59 1 0 1 1 0 8 0 pfstate 320 53 0 51 2 1 1 2 0 8 0 pfrule 1360 560 0 555 7 5 2 5 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 2217 0 1833 41 11 30 30 0 8 0 art_table 32 2219 0 1834 4 0 4 4 0 8 0 art_node 16 487 0 407 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 0 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 59 0 48 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 13076 0 11631 91 0 91 91 0 8 0 ffsino 272 13076 0 11631 97 0 97 97 0 8 0 nchpl 144 24989 0 23361 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 88959 0 88959 5 4 1 2 0 8 1 percpumem 16 182 0 143 1 0 1 1 0 8 0 vcpupl 2048 247 0 0 31 0 31 31 0 8 0 vmpool 560 273 0 26 18 0 18 18 0 8 0 pfiaddrpl 120 159 0 155 4 3 1 1 0 8 0 scsiplug 72 11 0 11 3 3 0 1 0 8 0 scxspl 216 80241 0 80241 16 15 1 8 0 8 1 plimitpl 152 910 0 896 1 0 1 1 0 8 0 sigapl 424 9068 0 9005 8 0 8 8 0 8 0 futexpl 64 88128 0 88125 6 5 1 1 0 8 0 knotepl 120 218 0 0 6 1 5 5 0 8 0 kqueuepl 216 1719 0 1711 38 33 5 5 0 8 4 pipepl 336 1757 0 1730 49 44 5 13 0 8 2 fdescpl 496 9032 0 9006 5 1 4 5 0 8 0 filepl 152 65389 0 65156 121 105 16 21 0 8 4 lockfpl 104 2396 0 2391 4 3 1 2 0 8 0 lockfspl 48 724 0 721 1 0 1 1 0 8 0 sessionpl 144 48 0 32 1 0 1 1 0 8 0 pgrppl 48 66 0 50 1 0 1 1 0 8 0 ucredpl 96 6558 0 6541 1 0 1 1 0 8 0 zombiepl 144 9006 0 9005 1 0 1 1 0 8 0 processpl 1064 9068 0 9005 5 0 5 5 0 8 0 procpl 672 22455 0 22380 17 9 8 9 0 8 1 srpgc 96 32 0 32 12 12 0 1 0 8 0 sosppl 168 40 0 40 10 10 0 1 0 8 0 sockpl 480 22143 0 22111 405 389 16 39 0 8 10 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 214 0 0 23 1 22 23 0 8 0 mtagpl 96 759 0 0 12 0 12 12 0 8 0 mbufpl 256 1053 0 0 44 0 44 44 0 8 0 bufpl 288 16954 0 10618 453 0 453 453 0 8 0 anonpl 24 2511697 0 2493166 256 78 178 183 0 186 36 amapchunkpl 152 263768 0 262953 96 46 50 50 0 158 12 amappl16 200 24189 0 23419 131 86 45 67 0 8 3 amappl15 192 1658 0 1652 1 0 1 1 0 8 0 amappl14 184 599 0 593 1 0 1 1 0 8 0 amappl13 176 1638 0 1632 1 0 1 1 0 8 0 amappl12 168 1805 0 1805 2 1 1 1 0 8 1 amappl11 160 1178 0 1159 1 0 1 1 0 8 0 amappl10 152 1181 0 1174 1 0 1 1 0 8 0 amappl9 144 1250 0 1247 1 0 1 1 0 8 0 amappl8 136 1982 0 1861 5 0 5 5 0 8 0 amappl7 128 931 0 919 1 0 1 1 0 8 0 amappl6 120 1073 0 1045 2 1 1 2 0 8 0 amappl5 112 7200 0 7183 1 0 1 1 0 8 0 amappl4 104 3897 0 3858 4 2 2 2 0 8 0 amappl3 96 2811 0 2797 1 0 1 1 0 8 0 amappl2 88 3618 0 3570 3 1 2 3 0 8 0 amappl1 80 161256 0 160712 19 6 13 19 0 8 0 amappl 88 108004 0 107703 10 1 9 9 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 9305 0 9032 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9305 0 9032 2 0 2 2 0 8 0 vmmpekpl 168 60662 0 60565 5 0 5 5 0 8 0 vmmpepl 168 817562 0 814488 312 147 165 166 0 357 17 vmsppl 368 9304 0 9032 27 1 26 26 0 8 0 rwobjpl 56 197073 0 189184 123 8 115 119 0 8 0 pdppl 4096 18617 0 18311 656 340 316 318 0 8 10 pvpl 32 4299335 0 4276502 503 224 279 284 0 265 60 pmappl 248 9304 0 9032 19 1 18 18 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1643 0 510 33 0 33 33 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82b485d0,ffff800000c42000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c42490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000bec000,3,ffff80002118ed20) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f6f5c68,cd60441a,ffff800000bec000,3,fffffd807f7d84e0,ffff80002118ed20) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807e5c70a8,cd60441a,ffff800000bec000,ffff80002118ed20) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002118ed20,ffff80002d48b638,ffff80002d48b690) at sys_ioctl+0x4a2 syscall(ffff80002d48b700) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002d48b700) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf1d543ba5d0, 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 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5