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(ffffffff829b16e0,ffff800000c5c000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c5c490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000d138a8,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:485 pfioctl(4900,cd60441a,ffff8000006e4000,3,ffff8000fffeefc8) at pfioctl+0x859d pf_addr_setup sys/net/pf_ioctl.c:892 [inline] pfioctl(4900,cd60441a,ffff8000006e4000,3,ffff8000fffeefc8) at pfioctl+0x859d sys/net/pf_ioctl.c:1652 VOP_IOCTL(fffffd806f5f0aa8,cd60441a,ffff8000006e4000,3,fffffd807f7d86c0,ffff8000fffeefc8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8071c4ea18,cd60441a,ffff8000006e4000,ffff8000fffeefc8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000fffeefc8,ffff80002e43bf68,ffff80002e43bfc0) at sys_ioctl+0x4a2 syscall(ffff80002e43c030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e43c030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x330e41a7540, count: -9 ddb{0}> show registers rdi 0xffff80002af2d000 rsi 0x19d2 __ALIGN_SIZE+0x9d2 rbp 0xffff80002e43ba50 rbx 0xffffffff829b16e0 pf_anchors rdx 0xffff80002af2d000 rcx 0x19d1 __ALIGN_SIZE+0x9d1 rax 0xffffffff8118c27b pf_anchor_global_RB_REMOVE+0x2b r8 0x400 r9 0x8080808080808080 r10 0x47ce6160dcaf9f53 r11 0xc6715f48da22622f r12 0xb90af8967d194af5 r13 0xffffffff829b16e8 pf_main_anchor r14 0xffff800000c5c000 r15 0xdead007fdeadbeef rip 0xffffffff8118c2a8 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80002e43ba00 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.6) pid=485474 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002e3b9500,0xffff8000fffef278 process=0xffff8000294da158 user=0xffff80002e437000, vmspace=0xfffffd8068a53e60 estcpu=34, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9279 226589 80019 0 2 0 syz-executor.2 39839 465015 30401 0 2 0 syz-executor.3 28017 269258 15039 0 2 0 syz-executor.1 34061 23388 5309 0 2 0 syz-executor.6 *34061 485474 5309 0 7 0x4000000 syz-executor.6 76065 509250 68599 0 2 0 syz-executor.5 76065 9987 68599 0 3 0x4000080 kqread syz-executor.5 15039 361281 51418 0 3 0x82 nanoslp syz-executor.1 68599 70206 51418 0 3 0x82 nanoslp syz-executor.5 30401 404840 51418 0 3 0x82 nanoslp syz-executor.3 28856 208989 51418 0 2 0x2 syz-executor.0 62598 326910 51418 0 2 0x2 syz-executor.4 29164 478134 51418 0 2 0x2 syz-executor.7 80019 462851 51418 0 3 0x82 nanoslp syz-executor.2 5185 466617 1 0 3 0x100083 ttyopn getty 29067 120372 0 0 3 0x14280 nfsidl nfsio 87508 122946 0 0 3 0x14280 nfsidl nfsio 70396 371772 0 0 3 0x14280 nfsidl nfsio 83176 329222 0 0 3 0x14280 nfsidl nfsio 95578 139186 0 0 3 0x14280 nfsidl nfsio 15956 286225 0 0 3 0x14280 nfsidl nfsio 85781 40531 0 0 3 0x14280 nfsidl nfsio 17835 336176 0 0 3 0x14280 nfsidl nfsio 61669 485673 0 0 3 0x14280 nfsidl nfsio 67047 13444 0 0 3 0x14280 nfsidl nfsio 77670 422658 0 0 3 0x14280 nfsidl nfsio 93622 269354 0 0 3 0x14280 nfsidl nfsio 90648 115925 0 0 3 0x14280 nfsidl nfsio 42489 342102 0 0 3 0x14280 nfsidl nfsio 20646 489781 0 0 3 0x14280 nfsidl nfsio 86439 127348 0 0 3 0x14280 nfsidl nfsio 73797 83176 0 0 3 0x14280 nfsidl nfsio 43282 48160 0 0 3 0x14280 nfsidl nfsio 61174 152543 0 0 3 0x14280 nfsidl nfsio 13164 140669 0 0 3 0x14280 nfsidl nfsio 5309 320334 51418 0 3 0x82 nanoslp syz-executor.6 58159 209066 0 0 3 0x14200 acct acct 34087 178828 0 0 3 0x14200 bored sosplice 51418 502319 28509 0 3 0x82 thrsleep syz-fuzzer 51418 397455 28509 0 3 0x4000082 nanoslp syz-fuzzer 51418 79047 28509 0 3 0x4000082 thrsleep syz-fuzzer 51418 378943 28509 0 3 0x4000082 thrsleep syz-fuzzer 51418 466845 28509 0 3 0x4000082 kqread syz-fuzzer 51418 237481 28509 0 3 0x4000082 thrsleep syz-fuzzer 51418 303860 28509 0 3 0x4000082 nanoslp syz-fuzzer 51418 103838 28509 0 3 0x4000082 thrsleep syz-fuzzer 51418 173518 28509 0 3 0x4000082 thrsleep syz-fuzzer 28509 477010 51262 0 3 0x10008a sigsusp ksh 51262 299677 8743 0 3 0x9a kqread sshd 8743 476827 1 0 3 0x88 kqread sshd 64556 234905 17569 74 3 0x1100092 bpf pflogd 17569 361336 1 0 3 0x80 netio pflogd 32925 94509 69629 73 3 0x1100090 kqread syslogd 69629 248629 1 0 3 0x100082 netio syslogd 78705 311278 1 0 3 0x100080 kqread resolvd 71931 491842 1483 77 3 0x100092 kqread dhcpleased 55042 383724 1483 77 3 0x100092 kqread dhcpleased 1483 410291 1 0 3 0x80 kqread dhcpleased 53326 247389 0 0 3 0x14200 bored smr 71738 139538 0 0 2 0x14200 zerothread 70931 211126 0 0 3 0x14200 aiodoned aiodoned 22992 374492 0 0 3 0x14200 syncer update 13100 371110 0 0 3 0x14200 cleaner cleaner 64007 110358 0 0 3 0x14200 reaper reaper 36960 191043 0 0 3 0x14200 pgdaemon pagedaemon 75508 352657 0 0 3 0x14200 bored viomb 31337 96918 0 0 3 0x40014200 acpi0 acpi0 39659 441983 0 0 7 0x40014200 idle1 46990 155570 0 0 3 0x14200 bored softnet 17836 507909 0 0 3 0x14200 bored systqmp 99171 322345 0 0 3 0x14200 bored systq 34500 296105 0 0 3 0x40014200 bored softclock 63299 79563 0 0 3 0x40014200 idle0 1 254933 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 34061 (syz-executor.6) thread 0xffff8000fffeefc8 (485474) exclusive rwlock pf_lock r = 0 (0xffffffff829220b0) #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 (0xffffffff828e17a0) #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 (0xffffffff829ba718) #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 Process 62598 (syz-executor.4) thread 0xffff8000fffef508 (326910) exclusive rrwlock inode r = 0 (0xfffffd8066e805f8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e136e70) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10212 6544K 10646K 78643K 20448 0 pcb 13 18K 21K 78643K 3788 0 rtable 200 15K 17K 78643K 1950 0 ifaddr 83 19K 21K 78643K 729 0 sysctl 2 0K 0K 78643K 2 0 counters 54 35K 36K 78643K 284 0 ioctlops 1 4K 4K 78643K 2821 0 iov 0 0K 24K 78643K 689 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1496 93K 94K 78643K 4478 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 45 0 VM map 2 1K 1K 78643K 2 0 sem 26 5K 10K 78643K 689 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 85K 78643K 5996 0 sigio 0 0K 0K 78643K 70 0 proc 71 87K 123K 78643K 1480 0 subproc 104 6K 6K 78643K 429 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 431 0 in_multi 81 5K 6K 78643K 547 0 ether_multi 1 0K 0K 78643K 61 0 mrt 1 0K 0K 78643K 59 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 2K 78643K 1811 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 421 514K 516K 78643K 76460 0 UVM aobj 131 8K 8K 78643K 146 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 0K 78643K 267 0 NDP 11 0K 2K 78643K 203 0 temp 131 4713K 8807K 78643K 91716 0 kqueue 13 20K 24K 78643K 309 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 120 350 0 347 2 1 1 2 0 8 0 rtentry 112 579 0 495 4 0 4 4 0 8 0 unpcb 136 4846 0 4831 55 49 6 9 0 8 5 syncache 296 26 0 26 9 8 1 1 0 8 1 tcpqe 32 11 0 11 4 4 0 1 0 8 0 tcpcb 736 4476 0 4456 102 95 7 14 0 8 4 arp 120 75 0 59 1 0 1 1 0 8 0 inpcb 304 10309 0 10301 96 89 7 16 0 8 5 rttmr 72 22 0 22 5 4 1 1 0 8 1 nd6 48 115 0 96 1 0 1 1 0 8 0 pkpcb 40 17 0 17 3 3 0 1 0 8 0 kcovpl 48 33 0 25 1 0 1 1 0 8 0 ppxss 1248 52 0 52 11 10 1 1 0 8 1 pfstscr 40 12 0 12 5 5 0 1 0 8 0 pffrag 232 76 0 76 6 5 1 1 0 482 1 pffrnode 88 76 0 76 6 5 1 1 0 8 1 pffrent 40 539 0 539 6 5 1 1 0 8 1 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 20 11 17 3 2 1 1 0 8 0 pftag 88 15 0 10 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 38 0 36 1 0 1 1 0 8 0 pfstkey 112 48 0 46 1 0 1 1 0 8 0 pfstate 320 39 0 37 3 2 1 3 0 8 0 pfrule 1360 260 0 249 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2127 0 1760 40 16 24 30 0 8 0 art_table 32 2128 0 1760 4 0 4 4 0 8 0 art_node 16 479 0 404 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 679 0 655 1 0 1 1 0 8 0 shmpl 112 143 0 15 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 9444 0 7983 93 1 92 92 0 8 0 ffsino 272 9444 0 7983 98 0 98 98 0 8 0 nchpl 144 17147 0 15522 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 61078 0 61077 4 3 1 2 0 8 0 percpumem 16 154 0 115 1 0 1 1 0 8 0 vcpupl 2048 67 0 0 9 0 9 9 0 8 0 vmpool 560 148 0 81 7 2 5 5 0 8 0 pfiaddrpl 120 14 0 13 4 3 1 1 0 8 0 scxspl 216 55762 0 55762 20 18 2 7 0 8 2 plimitpl 152 541 0 526 1 0 1 1 0 8 0 sigapl 424 6270 0 6206 8 0 8 8 0 8 0 futexpl 64 52836 0 52836 3 2 1 1 0 8 1 knotepl 120 159 0 0 4 0 4 4 0 8 0 kqueuepl 216 1246 0 1236 30 25 5 5 0 8 4 pipepl 336 1725 0 1696 53 47 6 13 0 8 3 fdescpl 496 6234 0 6206 5 1 4 5 0 8 0 filepl 152 45501 0 45253 110 91 19 24 0 8 8 lockfpl 104 1525 0 1523 3 2 1 2 0 8 0 lockfspl 48 548 0 546 1 0 1 1 0 8 0 sessionpl 144 51 0 34 1 0 1 1 0 8 0 pgrppl 48 88 0 71 1 0 1 1 0 8 0 ucredpl 96 5428 0 5416 1 0 1 1 0 8 0 zombiepl 144 6206 0 6206 1 0 1 1 0 8 1 processpl 1064 6270 0 6206 5 0 5 5 0 8 0 procpl 672 17058 0 16984 19 11 8 9 0 8 0 srpgc 96 34 0 34 9 9 0 1 0 8 0 sosppl 168 57 0 57 9 9 0 1 0 8 0 sockpl 480 15554 0 15528 308 296 12 34 0 8 7 mcl64k 65536 27 0 0 4 1 3 3 0 8 0 mcl16k 16384 19 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 28 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 178 0 0 19 0 19 19 0 8 0 mtagpl 96 449 0 0 7 0 7 7 0 8 0 mbufpl 256 844 0 0 40 0 40 40 0 8 0 bufpl 288 16559 0 10223 453 0 453 453 0 8 0 anonpl 24 1773447 0 1751255 287 141 146 208 0 186 0 amapchunkpl 152 189497 0 188699 110 70 40 70 0 158 0 amappl16 200 17163 0 16339 101 52 49 57 0 8 0 amappl15 192 1822 0 1816 1 0 1 1 0 8 0 amappl14 184 1060 0 1056 1 0 1 1 0 8 0 amappl13 176 384 0 383 1 0 1 1 0 8 0 amappl12 168 141 0 140 3 2 1 1 0 8 0 amappl11 160 545 0 524 1 0 1 1 0 8 0 amappl10 152 1795 0 1786 1 0 1 1 0 8 0 amappl9 144 902 0 899 1 0 1 1 0 8 0 amappl8 136 2094 0 1996 4 0 4 4 0 8 0 amappl7 128 1134 0 1120 1 0 1 1 0 8 0 amappl6 120 714 0 685 2 1 1 2 0 8 0 amappl5 112 6136 0 6118 1 0 1 1 0 8 0 amappl4 104 3266 0 3230 2 0 2 2 0 8 0 amappl3 96 842 0 831 1 0 1 1 0 8 0 amappl2 88 1296 0 1243 3 1 2 3 0 8 0 amappl1 80 115441 0 114904 19 5 14 19 0 8 0 amappl 88 75408 0 75151 8 0 8 8 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 72 145 0 15 3 0 3 3 0 8 0 uaddrrnd 24 6382 0 6287 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6382 0 6287 1 0 1 1 0 8 0 vmmpekpl 168 50913 0 50832 4 0 4 4 0 8 0 vmmpepl 168 577435 0 573646 306 113 193 205 0 357 10 vmsppl 368 6381 0 6287 10 1 9 9 0 8 0 rwobjpl 56 144665 0 136779 123 10 113 117 0 8 0 pdppl 4096 12771 0 12641 441 305 136 137 0 8 6 pvpl 32 3067106 0 3043460 443 227 216 328 0 265 0 pmappl 248 6381 0 6287 8 1 7 7 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1387 0 474 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff829b16e0,ffff800000c5c000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000c5c490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000d138a8,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:485 pfioctl(4900,cd60441a,ffff8000006e4000,3,ffff8000fffeefc8) at pfioctl+0x859d pf_addr_setup sys/net/pf_ioctl.c:892 [inline] pfioctl(4900,cd60441a,ffff8000006e4000,3,ffff8000fffeefc8) at pfioctl+0x859d sys/net/pf_ioctl.c:1652 VOP_IOCTL(fffffd806f5f0aa8,cd60441a,ffff8000006e4000,3,fffffd807f7d86c0,ffff8000fffeefc8) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8071c4ea18,cd60441a,ffff8000006e4000,ffff8000fffeefc8) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000fffeefc8,ffff80002e43bf68,ffff80002e43bfc0) at sys_ioctl+0x4a2 syscall(ffff80002e43c030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e43c030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x330e41a7540, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp