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(ffffffff82b766b0,ffff800000def800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000defc90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000c17000,2,ffff8000ffff1270) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f6f0c68,cd60441a,ffff800000c17000,2,fffffd807f7d8360,ffff8000ffff1270) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067a778e8,cd60441a,ffff800000c17000,ffff8000ffff1270) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff1270,ffff80002963fae8,ffff80002963fb40) at sys_ioctl+0x4a2 syscall(ffff80002963fbb0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002963fbb0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a135cc9f90, count: -8 ddb{0}> show registers rdi 0xffffffff82b766b0 pf_anchors rsi 0xffff800000def800 rbp 0xffff80002963f650 rbx 0xffffffff82b766b0 pf_anchors rdx 0 rcx 0xfffffd80036f7e20 rax 0xffff8000ffff1270 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc699d2ae6ebb34dd r11 0xacc9d56270eb26ab r12 0x826b55a68ec10a7 r13 0xffffffff82b766b8 pf_main_anchor r14 0xffff800000def800 r15 0xdeaf007fdeaf4152 rip 0xffffffff8249b8c8 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002963f600 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.0) pid=27858 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff17b0,0xffff8000ffff0800 process=0xffff80002e3be590 user=0xffff80002963a000, vmspace=0xfffffd80711ff5e8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43534 8238 31807 0 2 0 syz-executor.4 50807 415000 7333 0 2 0 syz-executor.6 50807 105336 7333 0 3 0x4000080 fsleep syz-executor.6 33692 32895 88119 0 2 0 syz-executor.0 *33692 27858 88119 0 7 0x4000000 syz-executor.0 33692 489312 88119 0 3 0x4000080 fsleep syz-executor.0 81853 487823 27347 0 2 0x81000 syz-executor.7 81853 445338 27347 0 3 0x4003000 suspend syz-executor.7 50836 91275 81036 0 2 0 syz-executor.2 50836 515241 81036 0 3 0x4000080 fsleep syz-executor.2 59412 403268 87195 0 2 0 syz-executor.3 59412 436343 87195 0 3 0x4000080 bell syz-executor.3 15666 124593 26624 0 2 0 syz-executor.5 15666 421370 26624 0 3 0x4000080 fsleep syz-executor.5 87195 265608 90455 0 2 0x482 syz-executor.3 7333 76138 90455 0 3 0x82 nanoslp syz-executor.6 83301 325295 0 0 3 0x14200 acct acct 80798 147724 90455 0 2 0x2 syz-executor.1 27347 43089 90455 0 3 0x82 nanoslp syz-executor.7 31807 199881 90455 0 2 0x482 syz-executor.4 88119 172302 90455 0 2 0x482 syz-executor.0 26624 488483 90455 0 2 0x482 syz-executor.5 40135 60294 1 0 3 0x100083 ttyin getty 81036 12499 90455 0 2 0x482 syz-executor.2 78749 358320 0 0 3 0x14280 nfsidl nfsio 74161 228769 0 0 3 0x14280 nfsidl nfsio 63549 444699 0 0 3 0x14280 nfsidl nfsio 43915 434740 0 0 3 0x14280 nfsidl nfsio 61779 379751 0 0 3 0x14280 nfsidl nfsio 76221 307835 0 0 3 0x14280 nfsidl nfsio 78139 505484 0 0 3 0x14280 nfsidl nfsio 69647 477437 0 0 3 0x14280 nfsidl nfsio 43446 466930 0 0 3 0x14280 nfsidl nfsio 69049 149849 0 0 3 0x14280 nfsidl nfsio 32351 305575 0 0 3 0x14280 nfsidl nfsio 32525 207228 0 0 3 0x14280 nfsidl nfsio 22646 377181 0 0 3 0x14280 nfsidl nfsio 94581 154902 0 0 3 0x14280 nfsidl nfsio 38858 457716 0 0 3 0x14280 nfsidl nfsio 44568 494114 0 0 3 0x14280 nfsidl nfsio 72744 12100 0 0 3 0x14280 nfsidl nfsio 93827 89186 0 0 3 0x14280 nfsidl nfsio 20226 10569 0 0 3 0x14280 nfsidl nfsio 40205 39136 0 0 3 0x14280 nfsidl nfsio 5277 458251 0 0 3 0x14200 bored sosplice 90455 22533 74057 0 3 0x82 thrsleep syz-fuzzer 90455 318907 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 214241 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 438590 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 54207 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 260083 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 176022 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 340109 74057 0 3 0x4000082 thrsleep syz-fuzzer 90455 433417 74057 0 3 0x4000082 kqread syz-fuzzer 74057 464249 87542 0 3 0x10008a sigsusp ksh 87542 383068 11203 0 3 0x9a kqread sshd 11203 299933 1 0 3 0x88 kqread sshd 11670 266891 92475 74 3 0x1100092 bpf pflogd 92475 132463 1 0 3 0x80 netio pflogd 41584 412387 96072 73 3 0x1100090 kqread syslogd 96072 165396 1 0 3 0x100082 netio syslogd 42957 231774 1 0 3 0x100080 kqread resolvd 80417 114469 70381 77 3 0x100092 kqread dhcpleased 40779 17946 70381 77 3 0x100092 kqread dhcpleased 70381 426501 1 0 3 0x80 kqread dhcpleased 1042 265067 0 0 3 0x14200 bored smr 93582 201632 0 0 2 0x14200 zerothread 21912 80581 0 0 3 0x14200 aiodoned aiodoned 19272 269346 0 0 3 0x14200 syncer update 31895 101093 0 0 3 0x14200 cleaner cleaner 55518 117621 0 0 3 0x14200 reaper reaper 42169 88385 0 0 3 0x14200 pgdaemon pagedaemon 81867 520632 0 0 3 0x14200 bored viomb 91439 441059 0 0 3 0x40014200 acpi0 acpi0 98381 60156 0 0 7 0x40014200 idle1 93875 347735 0 0 3 0x14200 bored softnet 13869 85641 0 0 3 0x14200 bored systqmp 65520 388131 0 0 3 0x14200 bored systq 36558 106711 0 0 3 0x40014200 bored softclock 23374 98045 0 0 3 0x40014200 idle0 1 467134 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 33692 (syz-executor.0) thread 0xffff8000ffff1270 (27858) exclusive rwlock pf_lock r = 0 (0xffffffff82946520) #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 (0xffffffff8293af70) #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 (0xffffffff829f89f0) #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 10776 6724K 7485K 78643K 106563 0 pcb 13 20K 23K 78643K 6876 0 rtable 244 19K 30K 78643K 8364 0 ifaddr 104 32K 40K 78643K 4994 0 sysctl 3 1K 3K 78643K 19 0 counters 56 35K 36K 78643K 1310 0 ioctlops 1 4K 8K 78643K 31699 0 iov 0 0K 44K 78643K 5593 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1554 97K 97K 78643K 28938 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 433 0 VM map 2 1K 1K 78643K 2 0 sem 16 32K 64K 78643K 2054 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 17 61K 93K 78643K 44053 0 sigio 0 0K 0K 78643K 516 0 proc 71 87K 124K 78643K 5572 0 subproc 104 6K 6K 78643K 1627 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2153 0 in_multi 82 5K 6K 78643K 2776 0 ether_multi 1 0K 0K 78643K 422 0 mrt 2 0K 0K 78643K 148 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 2K 78643K 8279 0 pfkey data 0 0K 1K 78643K 188 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 899 2368K 2372K 78643K 549310 0 UVM aobj 131 8K 8K 78643K 141 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 2241 0 NDP 16 0K 2K 78643K 990 0 temp 242 4911K 9011K 78643K 306943 0 kqueue 13 20K 30K 78643K 2311 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 3128 0 3125 47 46 1 5 0 8 0 rtentry 112 2164 0 2066 5 1 4 4 0 8 0 unpcb 136 31842 0 31827 360 357 3 9 0 8 2 syncache 296 58 0 58 19 19 0 1 0 8 0 tcpqe 32 42 0 42 6 6 0 1 0 8 0 tcpcb 736 14766 0 14757 528 521 7 14 0 8 6 arp 120 316 0 298 1 0 1 1 0 8 0 inpcb 304 39573 0 39499 626 617 9 14 0 8 3 rttmr 72 33 0 33 11 11 0 1 0 8 0 ip6q 72 18 0 18 1 1 0 1 0 8 0 ip6af 40 126 0 126 1 1 0 1 0 8 0 nd6 48 479 0 460 1 0 1 1 0 8 0 pkpcb 40 151 0 151 24 23 1 1 0 8 1 kcovpl 48 124 0 116 1 0 1 1 0 8 0 ppxss 1248 305 0 305 54 54 0 1 0 8 0 pfstscr 40 3147 0 3145 15 14 1 1 0 8 0 pffrag 232 170 0 170 22 22 0 1 0 482 0 pffrnode 88 169 0 169 22 22 0 1 0 8 0 pffrent 40 1941 0 1941 29 29 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 576 0 567 14 13 1 3 0 8 0 pftag 88 40 0 20 1 0 1 1 0 8 0 pfqueue 264 7 0 7 2 2 0 1 0 8 0 pfstitem 24 1555 0 1551 1 0 1 1 0 8 0 pfstkey 112 4730 0 4726 1 0 1 1 0 8 0 pfstate 320 2382 0 2379 2 1 1 2 0 8 0 pfrule 1360 2981 0 2913 65 59 6 42 0 8 0 art_heap8 4096 5 0 3 5 3 2 2 0 8 0 art_heap4 256 9595 0 9204 76 51 25 31 0 8 0 art_table 32 9600 0 9207 4 0 4 4 0 8 0 art_node 16 2116 0 2030 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 2 1 0 1 1 0 8 0 semupl 112 4 0 4 2 2 0 1 0 8 0 semapl 112 2041 0 2027 1 0 1 1 0 8 0 shmpl 112 138 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 58142 0 56603 97 0 97 97 0 8 0 ffsino 272 58142 0 56603 103 0 103 103 0 8 0 nchpl 144 116094 0 114464 63 0 63 63 0 8 0 uvmvnodes 80 8344 0 0 171 0 171 171 0 8 0 vnodes 224 8344 0 0 491 0 491 491 0 8 0 namei 1024 459320 0 459320 18 17 1 2 0 8 1 percpumem 16 667 0 627 1 0 1 1 0 8 0 vcpupl 2048 318 0 0 40 0 40 40 0 8 0 vmpool 560 419 0 101 28 5 23 23 0 8 0 pfiaddrpl 120 240 0 224 8 7 1 3 0 8 0 scsiplug 72 21 0 21 7 7 0 1 0 8 0 scxspl 216 341986 0 341986 69 68 1 8 0 8 1 plimitpl 152 4124 0 4109 1 0 1 1 0 8 0 sigapl 424 44202 0 44136 11 3 8 8 0 8 0 futexpl 64 406599 0 406595 13 12 1 1 0 8 0 knotepl 120 1153 0 0 14 6 8 10 0 8 0 kqueuepl 216 8502 0 8493 169 168 1 10 0 8 0 pipepl 336 8482 0 8421 263 257 6 13 0 8 0 fdescpl 496 44110 0 44080 9 5 4 5 0 8 0 filepl 152 333308 0 332891 522 505 17 24 0 8 0 lockfpl 104 12811 0 12809 36 35 1 3 0 8 0 lockfspl 48 3441 0 3439 2 1 1 2 0 8 0 sessionpl 144 146 0 129 1 0 1 1 0 8 0 pgrppl 48 623 0 606 1 0 1 1 0 8 0 ucredpl 96 35168 0 35151 1 0 1 1 0 8 0 zombiepl 144 44137 0 44136 8 7 1 1 0 8 0 processpl 1064 44202 0 44136 6 1 5 5 0 8 0 procpl 672 119453 0 119372 44 35 9 10 0 8 1 srpgc 96 169 0 169 48 48 0 1 0 8 0 sosppl 168 264 0 263 65 64 1 1 0 8 0 sockpl 480 74730 0 74638 1806 1794 12 34 0 8 0 mcl64k 65536 36 0 0 3 0 3 3 0 8 0 mcl16k 16384 33 0 0 4 1 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 58 0 0 8 0 8 8 0 8 0 mcl4k 4096 41 0 0 3 0 3 3 0 8 0 mcl2k2 2112 42 0 0 3 1 2 3 0 8 0 mcl2k 2048 907 0 0 75 7 68 69 0 8 0 mtagpl 96 2786 0 0 24 3 21 24 0 8 0 mbufpl 256 6548 0 0 325 0 325 325 0 8 0 bufpl 288 66962 0 58615 597 0 597 597 0 8 0 anonpl 24 12328378 0 12310472 518 367 151 188 0 186 3 amapchunkpl 152 1406827 0 1405917 326 275 51 62 0 158 10 amappl16 200 113520 0 112745 455 404 51 58 0 8 8 amappl15 192 6571 0 6564 1 0 1 1 0 8 0 amappl14 184 6684 0 6673 2 1 1 1 0 8 0 amappl13 176 6637 0 6634 1 0 1 1 0 8 0 amappl12 168 5842 0 5834 2 1 1 1 0 8 0 amappl11 160 5551 0 5531 1 0 1 1 0 8 0 amappl10 152 3873 0 3856 1 0 1 1 0 8 0 amappl9 144 6726 0 6721 1 0 1 1 0 8 0 amappl8 136 7780 0 7503 11 1 10 10 0 8 0 amappl7 128 4431 0 4415 1 0 1 1 0 8 0 amappl6 120 6810 0 6777 9 7 2 2 0 8 0 amappl5 112 40849 0 40828 1 0 1 1 0 8 0 amappl4 104 13213 0 13163 7 5 2 2 0 8 0 amappl3 96 10773 0 10759 1 0 1 1 0 8 0 amappl2 88 11595 0 11504 4 1 3 3 0 8 0 amappl1 80 783140 0 782532 23 9 14 19 0 8 0 amappl 88 545775 0 545337 15 4 11 11 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 72 140 0 10 3 0 3 3 0 8 0 uaddrrnd 24 44529 0 44181 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 44529 0 44181 3 0 3 3 0 8 0 vmmpekpl 168 292554 0 292441 6 0 6 6 0 8 0 vmmpepl 168 3998575 0 3994613 1228 1029 199 240 0 357 15 vmsppl 368 44528 0 44181 34 2 32 32 0 8 0 rwobjpl 56 937151 0 926453 213 58 155 155 0 8 3 pdppl 4096 89065 0 88680 2109 1722 387 387 0 8 2 pvpl 32 20860174 0 20837369 1080 838 242 317 0 265 19 pmappl 248 44528 0 44181 23 1 22 22 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 4359 0 2642 50 0 50 50 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82b766b0,ffff800000def800) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000defc90) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfioctl(4900,cd60441a,ffff800000c17000,2,ffff8000ffff1270) at pfioctl+0x8f7c sys/net/pf_ioctl.c:1713 VOP_IOCTL(fffffd806f6f0c68,cd60441a,ffff800000c17000,2,fffffd807f7d8360,ffff8000ffff1270) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8067a778e8,cd60441a,ffff800000c17000,ffff8000ffff1270) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000ffff1270,ffff80002963fae8,ffff80002963fb40) at sys_ioctl+0x4a2 syscall(ffff80002963fbb0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002963fbb0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a135cc9f90, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> t^raec