login: `‹:'( þÿÿÿ `‹:'( þÿÿÿ kernel: protection fault trap, code=0 Stopped at pfi_ifhead_RB_REMOVE+0x58: movq 0x10(%r15),%rbx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pfi_ifhead_RB_REMOVE(ffffffff822a8538,ffff8000009ebe00) at pfi_ifhead_RB_REMOVE+0x58 sys/net/pf_if.c:80 pfi_detach_ifnet(ffff800000a05800) at pfi_detach_ifnet+0x11e pfi_kif_unref sys/net/pf_if.c:199 [inline] pfi_detach_ifnet(ffff800000a05800) at pfi_detach_ifnet+0x11e sys/net/pf_if.c:257 if_detach(ffff800000a05800) at if_detach+0x15d sys/net/if.c:1118 tun_clone_destroy(ffff800000a05800) at tun_clone_destroy+0x1c6 sys/net/if_tun.c:278 spec_close(ffff800015a12908) at spec_close+0x3b0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd802c3538d8,1,fffffd803f7c6a80,ffff80001491fc48) at VOP_CLOSE+0x64 sys/kern/vfs_vops.c:174 vn_closefile(fffffd803aebf540,ffff80001491fc48) at vn_closefile+0x14b vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd803aebf540,ffff80001491fc48) at vn_closefile+0x14b sys/kern/vfs_vnops.c:575 fdrop(fffffd803aebf540,ffff80001491fc48) at fdrop+0xc9 sys/kern/kern_descrip.c:1260 closef(fffffd803aebf540,ffff80001491fc48) at closef+0x118 sys/kern/kern_descrip.c:1244 fdfree(ffff80001491fc48) at fdfree+0xf7 sys/kern/kern_descrip.c:1176 exit1(ffff80001491fc48,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff80001491fc48,ffff800015a12ba0,ffff800015a12c10) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800015a12c70) at syscall+0x508 Xsyscall(6,1,0,1,0,7f7ffffd52d4) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd52a0, count: -14 ddb> show registers rdi 0xffffffff822a8538 pfi_ifs rsi 0xffff8000009ebe00 rbp 0xffff800015a12790 rbx 0xdeaf4152deaf4152 rdx 0x28 rcx 0xea4c67ee9df55c95 rax 0xffff8000009ebe10 r8 0x101010101010101 r9 0x5 r10 0x6e2b30c55db4da26 r11 0x3e332919ed5577f0 r12 0xffffffff822a8538 pfi_ifs r13 0 r14 0xffff8000009ebe00 r15 0xdeaf4152deaf4152 rip 0xffffffff817b3968 pfi_ifhead_RB_REMOVE+0x58 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800015a12730 ss 0x10 pfi_ifhead_RB_REMOVE+0x58: movq 0x10(%r15),%rbx ddb> show proc PROC (syz-executor.1) pid=28289 stat=onproc flags process=1008 proc=2000 pri=50, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001491f288,0xffffffff822a6498 process=0xffff8000ffffb708 user=0xffff800015a0d000, vmspace=0xfffffd803f014ee0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 34626 364615 1 0 3 0x100083 ttyin getty 68412 421983 0 0 3 0x14200 bored sosplice 82335 449702 74139 0 3 0x2 biowait syz-executor.0 82866 427444 74139 0 3 0x82 nanosleep syz-executor.1 74139 222535 75328 0 3 0x82 thrsleep syz-fuzzer 74139 417623 75328 0 3 0x4000082 nanosleep syz-fuzzer 74139 174065 75328 0 3 0x4000082 thrsleep syz-fuzzer 74139 159311 75328 0 3 0x4000082 thrsleep syz-fuzzer 74139 93329 75328 0 3 0x4000082 kqread syz-fuzzer 74139 195082 75328 0 3 0x4000082 thrsleep syz-fuzzer 74139 125105 75328 0 3 0x4000082 thrsleep syz-fuzzer 75328 46668 42684 0 3 0x10008a pause ksh 42684 248379 98939 0 3 0x92 select sshd 98939 394164 1 0 3 0x80 select sshd 51659 189947 91455 73 3 0x100090 kqread syslogd 91455 8226 1 0 3 0x100082 netio syslogd 52670 510487 1 77 3 0x100090 poll dhclient 72468 236776 1 0 3 0x80 poll dhclient 44976 168404 0 0 2 0x14200 zerothread 9903 128121 0 0 3 0x14200 aiodoned aiodoned 30773 339423 0 0 3 0x14200 syncer update 5201 65663 0 0 3 0x14200 cleaner cleaner 63393 474760 0 0 3 0x14200 reaper reaper 60082 511393 0 0 3 0x14200 pgdaemon pagedaemon 25529 102760 0 0 3 0x14200 bored crynlk 62919 93650 0 0 3 0x14200 bored crypto 35691 318511 0 0 3 0x40014200 acpi0 acpi0 78526 417121 0 0 2 0x14200 softnet 85676 282588 0 0 3 0x14200 bored systqmp 17843 139328 0 0 3 0x14200 bored systq 25413 124392 0 0 3 0x40014200 bored softclock 36583 233686 0 0 3 0x40014200 idle0 52459 464599 0 0 3 0x14200 bored smr 1 57487 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 Kern Lim devbuf 9530 6365K 7004K 78643K 17647 0 0 pcb 23 9K 11K 78643K 1309 0 0 rtable 130 5K 5K 78643K 712 0 0 ifaddr 67 15K 16K 78643K 327 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 153 0 0 iov 0 0K 24K 78643K 391 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1205 76K 76K 78643K 3848 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 37 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 211 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2876 0 0 sigio 1 0K 0K 78643K 48 0 0 proc 42 30K 46K 78643K 524 0 0 subproc 32 2K 2K 78643K 34 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 229 0 0 in_multi 33 2K 2K 78643K 103 0 0 ether_multi 1 0K 0K 78643K 9 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 102 450K 450K 78643K 102 0 0 exec 0 0K 1K 78643K 387 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 80 20K 39K 78643K 7589 0 0 UVM aobj 100 3K 3K 78643K 122 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 144 0 0 NDP 15 0K 0K 78643K 86 0 0 temp 190 2720K 2815K 78643K 11871 0 0 kqueue 0 0K 0K 78643K 30 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 1185 0 1178 2 1 1 2 0 8 0 rtentry 112 55 0 3 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 56 0 56 1 1 0 1 0 8 0 tcpcb 544 455 0 451 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 59 0 59 10 9 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 52 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 209 0 199 1 0 1 1 0 8 0 shmpl 112 120 0 22 4 1 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 6148 0 4723 47 0 47 47 0 8 0 ffsino 240 6148 0 4723 85 0 85 85 0 8 1 nchpl 144 10355 0 8721 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 32040 0 32040 3 2 1 1 0 8 1 scsiplug 64 3 0 3 3 3 0 1 0 8 0 scxspl 192 31715 0 31714 18 17 1 6 0 8 0 plimitpl 152 115 0 108 1 0 1 1 0 8 0 sigapl 432 3051 0 3038 2 0 2 2 0 8 0 futexpl 56 46111 0 46111 2 1 1 1 0 8 1 knotepl 112 501 0 482 1 0 1 1 0 8 0 kqueuepl 104 677 0 675 1 0 1 1 0 8 0 pipepl 112 1880 0 1861 8 6 2 2 0 8 1 fdescpl 424 3052 0 3038 2 0 2 2 0 8 0 filepl 120 18351 0 18256 5 1 4 5 0 8 0 lockfpl 104 1016 0 1016 3 2 1 1 0 8 1 lockfspl 48 361 0 361 3 2 1 1 0 8 1 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 55 0 45 1 0 1 1 0 8 0 ucredpl 96 4135 0 4128 1 0 1 1 0 8 0 zombiepl 144 3039 0 3038 2 1 1 1 0 8 0 processpl 840 3067 0 3038 4 0 4 4 0 8 0 procpl 624 6768 0 6733 4 0 4 4 0 8 0 sosppl 128 31 0 31 6 5 1 1 0 8 1 sockpl 384 2341 0 2324 5 2 3 4 0 8 1 mcl64k 65536 105 0 105 9 8 1 1 0 8 1 mcl16k 16384 3 0 3 3 3 0 1 0 8 0 mcl12k 12288 46 0 46 8 7 1 1 0 8 1 mcl9k 9216 56 0 56 10 9 1 1 0 8 1 mcl8k 8192 36 0 36 13 12 1 1 0 8 1 mcl4k 4096 123 0 123 5 4 1 1 0 8 1 mcl2k2 2112 10 0 10 5 5 0 1 0 8 0 mcl2k 2048 55165 0 55119 18 11 7 16 0 8 0 mtagpl 80 8 0 4 3 2 1 1 0 8 0 mbufpl 256 100607 0 100537 11 5 6 9 0 8 0 bufpl 256 13593 0 7966 352 0 352 352 0 8 0 anonpl 16 282052 0 271552 126 71 55 61 0 62 10 amapchunkpl 152 12275 0 12172 30 25 5 15 0 158 0 amappl16 192 15516 0 14947 139 108 31 43 0 8 2 amappl15 184 1441 0 1438 1 0 1 1 0 8 0 amappl14 176 1475 0 1471 2 1 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 12 0 9 1 0 1 1 0 8 0 amappl11 152 49 0 35 1 0 1 1 0 8 0 amappl10 144 1471 0 1470 2 1 1 1 0 8 0 amappl9 136 507 0 503 1 0 1 1 0 8 0 amappl8 128 133 0 118 1 0 1 1 0 8 0 amappl7 120 1439 0 1433 1 0 1 1 0 8 0 amappl6 112 59 0 51 1 0 1 1 0 8 0 amappl5 104 244 0 234 1 0 1 1 0 8 0 amappl4 96 1782 0 1761 1 0 1 1 0 8 0 amappl3 88 3145 0 3131 1 0 1 1 0 8 0 amappl2 80 23805 0 23737 4 2 2 3 0 8 0 amappl1 72 60581 0 60174 26 17 9 19 0 8 0 amappl 80 7027 0 6992 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 121 0 22 2 0 2 2 0 8 0 uaddrrnd 24 3052 0 3038 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3052 0 3038 1 0 1 1 0 8 0 vmmpekpl 168 22233 0 22207 2 0 2 2 0 8 0 vmmpepl 168 358188 0 356602 175 94 81 103 0 357 7 vmsppl 272 3051 0 3038 2 1 1 2 0 8 0 pdppl 4096 6110 0 6076 6 1 5 6 0 8 0 pvpl 32 794771 0 781211 350 127 223 241 0 265 110 pmappl 200 3051 0 3038 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 530 0 49 14 0 14 14 0 8 0