kernel: protection fault trap, code=0 Stopped at pf_anchor_global_RB_REMOVE+0x81: movq 0(%r12),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pf_anchor_global_RB_REMOVE(ffffffff83935398,ffff80000163f250) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82 pf_remove_if_empty_ruleset(ffff80000163f6e0) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301 pfi_dynaddr_setup(ffff800001635520,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508 pf_addr_setup(ffffffff83935830,ffff800001635520,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948 pfioctl(14900,cd60441a,ffff8000015e6000,83,ffff80002a78cfa8) at pfioctl+0x9a85 sys/net/pf_ioctl.c:2618 VOP_IOCTL(fffffd806c9a1610,cd60441a,ffff8000015e6000,83,fffffd8007ffd618,ffff80002a78cfa8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807af11880,cd60441a,ffff8000015e6000,ffff80002a78cfa8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002a78cfa8,ffff80002a8937c0,ffff80002a893710) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a8937c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8937c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cfe76c2f70, count: -10 ddb> show registers rdi 0xffff80002f0c2000 rsi 0xf02 rbp 0xffff80002a893190 rbx 0xffffffff83935398 pf_anchors rdx 0xffff80002f0c2000 rcx 0xf01 rax 0xffffffff814ea0af pf_anchor_global_RB_REMOVE+0x2f r8 0x3fc r9 0x8080808080808080 r10 0xf2fea12646fc9ac8 r11 0x27a7714e328a5d93 r12 0x964463924fb91be6 r13 0x1 r14 0xffff80000163f250 r15 0xc5171964ff2b4c62 rip 0xffffffff814ea101 pf_anchor_global_RB_REMOVE+0x81 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002a893140 ss 0x10 pf_anchor_global_RB_REMOVE+0x81: movq 0(%r12),%r15 ddb> show proc PROC (syz-executor) tid=90034 pid=7374 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=61, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a78da08,0xffff80002a78d780 process=0xffff80002a756d08 user=0xffff80002a88e000, vmspace=0xfffffd806cb1ae70 estcpu=11, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 41690 447346 9251 0 2 0 syz-executor 41690 355202 9251 0 3 0x4000080 kqread syz-executor 7374 363745 69031 0 2 0x10 syz-executor * 7374 90034 69031 0 7 0x4000010 syz-executor 87234 372392 48879 0 2 0 syz-executor 23097 277158 0 0 3 0x14200 acct acct 69203 410833 58348 0 3 0x82 piperd syz-executor 59753 89219 58348 0 2 0x2 syz-executor 55520 269874 58348 0 3 0x82 nanoslp syz-executor 86602 214200 58348 0 3 0x82 nanoslp syz-executor 69031 208849 58348 0 3 0x82 nanoslp syz-executor 48879 64936 58348 0 2 0x2 syz-executor 9251 297253 58348 0 3 0x82 nanoslp syz-executor 58348 370122 80669 0 3 0x82 nanoslp syz-executor 80669 324823 21827 0 3 0x10008a sigsusp ksh 21827 490431 23717 0 3 0x98 kqread sshd-session 23717 465665 12510 0 3 0x92 kqread sshd-session 57363 118309 1 0 3 0x100083 ttyin getty 12510 504312 1 0 3 0x88 kqread sshd 71057 485525 36591 73 3 0x1100090 kqread syslogd 36591 242470 1 0 3 0x100082 sbwait syslogd 24400 472091 1 0 3 0x100080 kqread resolvd 45249 459570 81159 77 3 0x100092 kqread dhcpleased 92416 19675 81159 77 3 0x100092 kqread dhcpleased 81159 42471 1 0 3 0x80 kqread dhcpleased 73415 496324 0 0 3 0x14200 bored smr 77828 179440 0 0 2 0x14200 zerothread 55936 102888 0 0 3 0x14200 aiodoned aiodoned 53402 173131 0 0 3 0x14200 syncer update 92474 27403 0 0 3 0x14200 cleaner cleaner 32703 268528 0 0 3 0x14200 reaper reaper 14518 123279 0 0 3 0x14200 pgdaemon pagedaemon 19177 149009 0 0 3 0x14200 bored viomb 77015 482303 0 0 3 0x40014200 acpi0 acpi0 6702 515967 0 0 3 0x14200 bored softnet0 34686 328258 0 0 3 0x14200 bored systqmp 58387 70745 0 0 3 0x14200 bored systq 89697 308789 0 0 3 0x40014200 tmoslp softclock 70537 242431 0 0 3 0x40014200 idle0 1 2572 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11032 12097K 12376K 166960K 12325 0 pcb 18 12K 12K 166960K 61 0 rtable 228 7K 8K 166960K 386 0 pf 31 13K 16K 166960K 185 0 ifaddr 38 6K 7K 166960K 53 0 ifgroup 46 2K 2K 166960K 68 0 sysctl 3 1K 9K 166960K 7 0 counters 32 17K 18K 166960K 42 0 ioctlops 1 4K 4K 166960K 66 0 iov 0 0K 2K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1300 82K 82K 166960K 1662 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 89K 166960K 357 0 sigio 0 0K 0K 166960K 1 0 proc 60 59K 83K 166960K 510 0 subproc 63 3K 5K 166960K 234 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 31 0 in_multi 88 6K 7K 166960K 106 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 401 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 185 149K 175K 166960K 4583 0 UVM aobj 10 4K 4K 166960K 12 0 pinsyscall 35 70K 92K 166960K 1448 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 10 0K 2K 166960K 32 0 temp 37 9073K 9143K 166960K 13986 0 kqueue 15 22K 26K 166960K 55 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 50 0 47 1 0 1 1 0 8 0 rtentry 136 114 0 14 4 0 4 4 0 8 0 unpcb 144 119 0 104 1 0 1 1 0 8 0 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 49 0 44 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 267 0 259 8 1 7 7 0 8 5 ip6q 72 1 0 0 1 0 1 1 0 8 0 nd6 112 25 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 26 0 19 1 0 1 1 0 8 0 ppxss 1072 6 0 6 1 0 1 1 0 8 1 pppxif 1416 2 0 2 1 0 1 1 0 8 1 pfstscr 40 3 0 3 1 0 1 1 0 8 1 pfrktable 1344 2 1 1 1 0 1 1 0 8 0 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 pfrule 1360 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 460 0 50 29 0 29 29 0 8 2 art_table 40 461 0 50 5 0 5 5 0 8 0 art_node 32 114 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 2 1 1 1 0 8 1 semapl 112 6 0 2 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1899 0 428 92 0 92 92 0 8 0 ffsino 256 1899 0 428 92 0 92 92 0 8 0 nchpl 144 2326 0 617 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2220 0 0 124 0 124 124 0 8 0 namei 1024 7004 0 7004 4 2 2 2 0 8 2 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 33 0 12 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7971 0 7971 10 2 8 8 1 8 8 plimitpl 152 70 0 55 1 0 1 1 0 8 0 sigapl 424 613 0 573 6 0 6 6 0 8 1 knotepl 120 8331 0 8069 15 5 10 15 0 8 2 kqueuepl 184 61 0 50 1 0 1 1 0 8 0 pipepl 304 243 0 216 8 0 8 8 0 8 5 fdescpl 448 599 0 573 5 0 5 5 0 8 2 filepl 120 2816 0 2614 11 0 11 11 0 8 4 lockfpl 104 94 0 91 1 0 1 1 0 8 0 lockfspl 48 41 0 38 1 0 1 1 0 8 0 sessionpl 144 44 0 35 1 0 1 1 0 8 0 pgrppl 48 71 0 55 1 0 1 1 0 8 0 ucredpl 104 313 0 301 1 0 1 1 0 8 0 zombiepl 144 575 0 573 2 1 1 1 0 8 0 processpl 1152 613 0 573 4 0 4 4 0 8 1 procpl 664 866 0 824 5 0 5 5 0 8 1 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 552 441 0 414 7 0 7 7 0 8 4 mcl64k 65536 14 0 13 2 1 1 1 0 8 0 mcl8k 8192 5 0 5 2 1 1 1 0 8 1 mcl4k 4096 2733 0 2670 15 6 9 14 0 8 0 mcl2k 2048 254 0 254 1 0 1 1 0 8 1 mtagpl 96 8 0 5 1 0 1 1 0 8 0 mbufpl 256 5988 0 5797 13 0 13 13 0 8 0 bufpl 280 2577 0 104 177 0 177 177 0 8 0 anonpl 24 122529 0 119656 45 3 42 42 0 187 18 amapchunkpl 152 13901 0 13540 21 0 21 21 0 158 6 amappl16 200 2388 0 2367 17 7 10 13 0 8 8 amappl15 192 18 0 18 1 1 0 1 0 8 0 amappl14 184 408 0 406 1 0 1 1 0 8 0 amappl13 176 117 0 107 1 0 1 1 0 8 0 amappl12 168 853 0 829 2 0 2 2 0 8 0 amappl11 160 1 0 1 1 1 0 1 0 8 0 amappl10 152 80 0 70 1 0 1 1 0 8 0 amappl9 144 281 0 280 1 0 1 1 0 8 0 amappl8 136 107 0 106 1 0 1 1 0 8 0 amappl7 128 139 0 128 1 0 1 1 0 8 0 amappl6 120 171 0 169 1 0 1 1 0 8 0 amappl5 112 96 0 88 1 0 1 1 0 8 0 amappl4 104 260 0 244 1 0 1 1 0 8 0 amappl3 96 2590 0 2507 3 0 3 3 0 8 0 amappl2 88 552 0 500 2 0 2 2 0 8 0 amappl1 80 10701 0 10169 15 0 15 15 0 8 3 amappl 88 3837 0 3713 4 0 4 4 0 92 0 uvmvnodes 80 108 0 0 3 0 3 3 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 128 254 0 254 2 1 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 599 0 573 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 599 0 573 1 0 1 1 0 8 0 vmmpekpl 168 7290 0 7257 2 0 2 2 0 8 0 vmmpepl 168 48402 0 46801 85 0 85 85 0 357 12 vmsppl 368 598 0 573 4 0 4 4 0 8 1 rwobjpl 40 16726 0 15825 13 1 12 12 0 8 1 pdppl 4096 1204 0 1146 110 50 60 78 0 8 2 pvpl 32 302855 0 295055 100 0 100 100 0 265 18 pmappl 216 598 0 573 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 381 0 63 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pf_anchor_global_RB_REMOVE(ffffffff83935398,ffff80000163f250) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82 pf_remove_if_empty_ruleset(ffff80000163f6e0) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301 pfi_dynaddr_setup(ffff800001635520,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508 pf_addr_setup(ffffffff83935830,ffff800001635520,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948 pfioctl(14900,cd60441a,ffff8000015e6000,83,ffff80002a78cfa8) at pfioctl+0x9a85 sys/net/pf_ioctl.c:2618 VOP_IOCTL(fffffd806c9a1610,cd60441a,ffff8000015e6000,83,fffffd8007ffd618,ffff80002a78cfa8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807af11880,cd60441a,ffff8000015e6000,ffff80002a78cfa8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002a78cfa8,ffff80002a8937c0,ffff80002a893710) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a8937c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8937c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cfe76c2f70, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace pf_anchor_global_RB_REMOVE(ffffffff83935398,ffff80000163f250) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82 pf_remove_if_empty_ruleset(ffff80000163f6e0) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301 pfi_dynaddr_setup(ffff800001635520,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508 pf_addr_setup(ffffffff83935830,ffff800001635520,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948 pfioctl(14900,cd60441a,ffff8000015e6000,83,ffff80002a78cfa8) at pfioctl+0x9a85 sys/net/pf_ioctl.c:2618 VOP_IOCTL(fffffd806c9a1610,cd60441a,ffff8000015e6000,83,fffffd8007ffd618,ffff80002a78cfa8) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807af11880,cd60441a,ffff8000015e6000,ffff80002a78cfa8) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002a78cfa8,ffff80002a8937c0,ffff80002a893710) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a8937c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8937c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cfe76c2f70, count: -10