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(ffffffff82b77430,ffff800000d6e800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000d6ec90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000bde000,3,ffff80002e37c550) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f612b88,cd60441a,ffff800000bde000,3,fffffd807f7d8480,ffff80002e37c550) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80655a0e50,cd60441a,ffff800000bde000,ffff80002e37c550) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e37c550,ffff80002e441508,ffff80002e441560) at sys_ioctl+0x4a2 syscall(ffff80002e4415d0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e4415d0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f1a9651070, count: -8 ddb{0}> show registers rdi 0xffff800029527000 rsi 0x428 rbp 0xffff80002e441070 rbx 0xffffffff82b77430 pf_anchors rdx 0xffff800029527000 rcx 0x427 rax 0xffffffff82212cfb pf_anchor_global_RB_REMOVE+0x2b r8 0x101010101010101 r9 0x8080808080808080 r10 0x7a4242a6cf498edb r11 0x4c3c13a0daa29e25 r12 0xbc10ae86c027b943 r13 0xffffffff82b77438 pf_main_anchor r14 0xffff800000d6e800 r15 0xdead007fdead4110 rip 0xffffffff82212d28 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002e441020 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.7) pid=362108 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff80002e37dcf0,0xffffffff82ac6470 process=0xffff80002e3f9d38 user=0xffff80002e43c000, vmspace=0xfffffd80654bce78 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94284 140790 73101 0 2 0 syz-executor.7 *94284 362108 73101 0 7 0x4000000 syz-executor.7 25363 333858 6234 0 2 0 syz-executor.1 25363 172754 6234 0 3 0x4000080 fsleep syz-executor.1 48406 161828 54814 0 3 0x82 piperd syz-executor.4 19928 359040 54814 0 3 0x82 nanoslp syz-executor.0 6234 284143 54814 0 3 0x82 nanoslp syz-executor.1 73101 265775 54814 0 3 0x82 nanoslp syz-executor.7 58191 293889 54814 0 3 0x82 piperd syz-executor.5 65239 169152 54814 0 3 0x82 piperd syz-executor.3 81763 304897 54814 0 3 0x82 piperd syz-executor.6 38925 199273 54814 0 3 0x82 piperd syz-executor.2 66767 132827 1 0 3 0x100083 ttyin getty 58528 339728 0 0 3 0x14200 bored sosplice 54814 240768 95107 0 3 0x82 kqread syz-fuzzer 54814 23905 95107 0 3 0x4000082 nanoslp syz-fuzzer 54814 503862 95107 0 3 0x4000082 thrsleep syz-fuzzer 54814 221677 95107 0 3 0x4000082 thrsleep syz-fuzzer 54814 93628 95107 0 3 0x4000082 thrsleep syz-fuzzer 54814 70448 95107 0 3 0x4000082 nanoslp syz-fuzzer 54814 522365 95107 0 3 0x4000082 thrsleep syz-fuzzer 54814 98621 95107 0 3 0x4000082 thrsleep syz-fuzzer 54814 30166 95107 0 3 0x4000082 thrsleep syz-fuzzer 95107 239968 74390 0 3 0x10008a sigsusp ksh 74390 267921 64690 0 3 0x9a kqread sshd 64690 385604 1 0 3 0x88 kqread sshd 52555 286981 521 74 3 0x1100092 bpf pflogd 521 410025 1 0 3 0x80 netio pflogd 3843 265281 75940 73 3 0x1100090 kqread syslogd 75940 187649 1 0 3 0x100082 netio syslogd 55602 147554 1 0 3 0x100080 kqread resolvd 11476 10083 80918 77 3 0x100092 kqread dhcpleased 72060 111110 80918 77 3 0x100092 kqread dhcpleased 80918 352498 1 0 3 0x80 kqread dhcpleased 49087 233524 0 0 3 0x14200 bored smr 3938 211720 0 0 2 0x14200 zerothread 10041 278895 0 0 3 0x14200 aiodoned aiodoned 74910 192899 0 0 3 0x14200 syncer update 72342 299716 0 0 3 0x14200 cleaner cleaner 37124 158296 0 0 3 0x14200 reaper reaper 53852 2292 0 0 3 0x14200 pgdaemon pagedaemon 2388 117252 0 0 3 0x14200 bored viomb 76294 197956 0 0 3 0x40014200 acpi0 acpi0 72931 87914 0 0 7 0x40014200 idle1 79393 466489 0 0 3 0x14200 bored softnet 66320 503306 0 0 3 0x14200 bored systqmp 2346 433733 0 0 3 0x14200 bored systq 75609 402344 0 0 3 0x40014200 bored softclock 75625 478688 0 0 3 0x40014200 idle0 1 398529 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 94284 (syz-executor.7) thread 0xffff80002e37c550 (362108) exclusive rwlock pf_lock r = 0 (0xffffffff82971660) #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 (0xffffffff829670b0) #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 (0xffffffff82b75200) #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 10238 6525K 10721K 78643K 45553 0 pcb 13 24K 28K 78643K 3270 0 rtable 284 26K 27K 78643K 4875 0 ifaddr 116 26K 27K 78643K 1805 0 sysctl 3 1K 2K 78643K 6 0 counters 58 35K 36K 78643K 358 0 ioctlops 1 4K 6K 78643K 5399 0 iov 0 0K 28K 78643K 2176 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1419 89K 89K 78643K 12234 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 470 0 VM map 2 1K 1K 78643K 2 0 sem 11 3K 5K 78643K 55 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 77K 78643K 19075 0 sigio 0 0K 0K 78643K 223 0 proc 70 87K 111K 78643K 2700 0 subproc 104 6K 6K 78643K 826 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 716 0 in_multi 90 6K 6K 78643K 1095 0 ether_multi 1 0K 0K 78643K 337 0 mrt 2 0K 0K 78643K 455 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 4236 0 pfkey data 0 0K 0K 78643K 4 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 579 1204K 1205K 78643K 236441 0 UVM aobj 131 5K 5K 78643K 148 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 994 0 NDP 15 0K 1K 78643K 306 0 temp 170 4761K 8853K 78643K 265355 0 kqueue 12 18K 26K 78643K 1000 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 1266 0 1263 19 18 1 5 0 8 0 rtentry 112 1081 0 977 4 0 4 4 0 8 0 unpcb 136 9776 0 9761 92 86 6 8 0 8 5 syncache 296 37 0 37 8 8 0 1 0 8 0 tcpqe 32 42 0 42 4 4 0 1 0 8 0 tcpcb 736 6913 0 6906 203 201 2 19 0 8 0 arp 120 227 0 208 1 0 1 1 0 8 0 inpcb 304 30298 0 30289 205 198 7 16 0 8 6 rttmr 72 4 0 4 1 1 0 1 0 8 0 nd6 48 215 0 191 1 0 1 1 0 8 0 pkpcb 40 48 0 48 11 11 0 1 0 8 0 kcovpl 48 63 0 55 1 0 1 1 0 8 0 ppxss 1248 43 0 43 12 12 0 1 0 8 0 pfstscr 40 101 0 101 15 15 0 1 0 8 0 pffrag 232 154 0 154 7 7 0 1 0 482 0 pffrnode 88 154 0 154 7 7 0 1 0 8 0 pffrent 40 591 0 591 7 7 0 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfrktable 1344 658 0 638 10 8 2 3 0 8 0 pftag 88 17 0 4 1 0 1 1 0 8 0 pfqueue 264 13 0 13 4 4 0 1 0 8 0 pfstitem 24 91 0 89 1 0 1 1 0 8 0 pfstkey 112 242 0 240 1 0 1 1 0 8 0 pfstate 320 148 0 146 3 2 1 3 0 8 0 pfrule 1360 698 0 590 15 5 10 10 0 8 0 art_heap8 4096 5 0 3 5 3 2 3 0 8 0 art_heap4 256 3613 0 3204 53 27 26 29 0 8 0 art_table 32 3618 0 3207 4 0 4 4 0 8 0 art_node 16 985 0 894 1 0 1 1 0 8 0 semapl 112 11 0 2 1 0 1 1 0 8 0 shmpl 112 145 0 17 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 26853 0 25352 95 0 95 95 0 8 0 ffsino 272 26853 0 25352 101 0 101 101 0 8 0 nchpl 144 54981 0 53356 63 0 63 63 0 8 0 uvmvnodes 80 34059 0 0 696 0 696 696 0 8 0 vnodes 224 34059 0 0 2004 0 2004 2004 0 8 0 namei 1024 189662 0 189662 10 9 1 2 0 8 1 percpumem 16 191 0 150 1 0 1 1 0 8 0 vcpupl 2048 245 0 0 31 0 31 31 0 8 0 vmpool 560 274 0 29 18 0 18 18 0 8 0 pfiaddrpl 120 238 0 202 7 5 2 2 0 8 0 scsiplug 72 29 0 29 7 7 0 1 0 8 0 scxspl 216 148456 0 148456 24 23 1 8 0 8 1 plimitpl 152 1625 0 1610 1 0 1 1 0 8 0 sigapl 424 19302 0 19261 9 2 7 8 0 8 0 futexpl 64 190318 0 190317 2 1 1 1 0 8 0 knotepl 120 607 0 0 13 2 11 11 0 8 0 kqueuepl 216 3405 0 3397 68 67 1 5 0 8 0 pipepl 336 3735 0 3707 82 76 6 13 0 8 3 fdescpl 496 19253 0 19228 8 4 4 5 0 8 0 filepl 152 140823 0 140581 189 171 18 22 0 8 8 lockfpl 104 4804 0 4802 11 10 1 2 0 8 0 lockfspl 48 1443 0 1441 1 0 1 1 0 8 0 sessionpl 144 82 0 65 1 0 1 1 0 8 0 pgrppl 48 156 0 139 1 0 1 1 0 8 0 ucredpl 96 17170 0 17156 1 0 1 1 0 8 0 zombiepl 144 19262 0 19261 4 3 1 1 0 8 0 processpl 1064 19302 0 19261 5 0 5 5 0 8 0 procpl 672 50238 0 50187 14 7 7 9 0 8 0 srpgc 96 74 0 74 23 23 0 1 0 8 0 sosppl 168 116 0 116 24 24 0 1 0 8 0 sockpl 480 41430 0 41403 608 596 12 30 0 8 8 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 5 2 3 3 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 473 0 0 27 3 24 25 0 8 0 mtagpl 96 1032 0 0 14 0 14 14 0 8 0 mbufpl 256 4041 0 0 225 0 225 225 0 8 0 bufpl 288 31051 0 24599 461 0 461 461 0 8 0 anonpl 24 5468477 0 5448361 437 298 139 184 0 186 0 amapchunkpl 152 572985 0 572136 176 136 40 64 0 158 1 amappl16 200 55744 0 55025 291 252 39 54 0 8 0 amappl15 192 2669 0 2661 1 0 1 1 0 8 0 amappl14 184 1403 0 1398 2 1 1 1 0 8 0 amappl13 176 4560 0 4557 1 0 1 1 0 8 0 amappl12 168 2684 0 2671 2 1 1 1 0 8 0 amappl11 160 2212 0 2196 1 0 1 1 0 8 0 amappl10 152 1967 0 1956 1 0 1 1 0 8 0 amappl9 144 3601 0 3595 1 0 1 1 0 8 0 amappl8 136 3618 0 3469 6 0 6 6 0 8 0 amappl7 128 1895 0 1884 1 0 1 1 0 8 0 amappl6 120 3565 0 3528 5 3 2 2 0 8 0 amappl5 112 15130 0 15115 1 0 1 1 0 8 0 amappl4 104 7442 0 7407 2 0 2 2 0 8 0 amappl3 96 6015 0 5997 1 0 1 1 0 8 0 amappl2 88 7028 0 6972 4 2 2 3 0 8 0 amappl1 80 341505 0 340976 21 7 14 19 0 8 0 amappl 88 234594 0 234292 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 72 147 0 17 3 0 3 3 0 8 0 uaddrrnd 24 19527 0 19257 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 19527 0 19257 2 0 2 2 0 8 0 vmmpekpl 168 131032 0 130942 5 0 5 5 0 8 0 vmmpepl 168 1746655 0 1743791 455 295 160 177 0 357 5 vmsppl 368 19526 0 19257 28 2 26 26 0 8 1 rwobjpl 56 444755 0 408715 513 4 509 509 0 8 0 pdppl 4096 39061 0 38759 804 490 314 316 0 8 12 pvpl 32 9052142 0 9029440 711 497 214 315 0 265 0 pmappl 248 19526 0 19257 19 1 18 18 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2159 0 820 39 0 39 39 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82b77430,ffff800000d6e800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000d6ec90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000bde000,3,ffff80002e37c550) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f612b88,cd60441a,ffff800000bde000,3,fffffd807f7d8480,ffff80002e37c550) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80655a0e50,cd60441a,ffff800000bde000,ffff80002e37c550) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002e37c550,ffff80002e441508,ffff80002e441560) at sys_ioctl+0x4a2 syscall(ffff80002e4415d0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e4415d0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3f1a9651070, 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