login: uvm_fault(0xfffffd803f014440, 0xa0a29307838, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f014440, 0xa0a29307838, 0, 1) -> e in6_purgeaddr(ffff800000b35700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff80001699d0a0, count: 0 ddb> trace in6_purgeaddr(ffff800000b35700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000ab6800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_detach(ffff800000ab6800) at if_detach+0x185 sys/net/if.c:1127 tun_clone_destroy(ffff800000ab6800) at tun_clone_destroy+0x1c0 sys/net/if_tun.c:278 ifioctl(fffffd8037026480,80206979,ffff80001699d4b0,ffff8000ffff3b40) at ifioctl+0x3d4 sys/net/if.c:1893 fifo_ioctl(ffff80001699d2f8) at fifo_ioctl+0x99 sys/miscfs/fifofs/fifo_vnops.c:276 VOP_IOCTL(fffffd8039422270,80206979,ffff80001699d4b0,1,fffffd803f7c6ae0,ffff8000ffff3b40) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802d7295b0,80206979,ffff80001699d4b0,ffff8000ffff3b40) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:536 sys_ioctl(ffff8000ffff3b40,ffff80001699d5c8,ffff80001699d610) at sys_ioctl+0x5b9 syscall(ffff80001699d690) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,ab9929d2010) at Xsyscall+0x128 end of kernel end trace frame: 0xabbdeab0090, count: -11 ddb> show registers rdi 0xffffffff81313141 rtfree+0x51 rsi 0x26fb4 acpi_pdirpa+0x12e1c rbp 0xffff80001699d030 rbx 0xffff800000b35c00 rdx 0x26fb5 acpi_pdirpa+0x12e1d rcx 0xffff80001491d000 rax 0 r8 0xffff800000b35000 r9 0x1 r10 0x658d1fd4f8e36943 r11 0x5c8c6cdb3edc5eea r12 0xa0a29307830 r13 0 r14 0xffff800000b35700 r15 0xffff800000ab6800 rip 0xffffffff81f7e105 in6_purgeaddr+0x135 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001699cfc0 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb> show proc PROC (syz-executor.1) pid=333652 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff38c8,0xffff8000ffff2c80 process=0xffff8000ffff6a30 user=0xffff800016998000, vmspace=0xfffffd803f014440 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14945 423464 14885 0 2 0 syz-executor.1 *14945 333652 14885 0 7 0x4000000 syz-executor.1 14945 86587 14885 0 3 0x4000080 fsleep syz-executor.1 2722 68675 68381 0 3 0x80 nanosleep syz-executor.0 2722 492047 68381 0 3 0x4000080 ttyout syz-executor.0 2722 431274 68381 0 3 0x4000080 fsleep syz-executor.0 14885 261708 99137 0 3 0x82 nanosleep syz-executor.1 34823 478857 1 0 3 0x100083 ttyin getty 68381 292752 99137 0 3 0x82 nanosleep syz-executor.0 90693 369895 0 0 3 0x14200 bored sosplice 99137 162400 2356 0 3 0x82 thrsleep syz-fuzzer 99137 217152 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 184180 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 302824 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 179620 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 250670 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 158436 2356 0 3 0x4000082 thrsleep syz-fuzzer 99137 126888 2356 0 3 0x4000082 kqread syz-fuzzer 99137 148709 2356 0 3 0x4000082 thrsleep syz-fuzzer 2356 119210 43873 0 3 0x10008a pause ksh 43873 334898 9141 0 3 0x92 select sshd 9141 505692 1 0 3 0x80 select sshd 44056 54079 37556 73 3 0x100090 kqread syslogd 37556 305174 1 0 3 0x100082 netio syslogd 22786 283026 0 0 2 0x14200 zerothread 20714 308436 0 0 3 0x14200 aiodoned aiodoned 29339 399513 0 0 3 0x14200 syncer update 80285 449997 0 0 3 0x14200 cleaner cleaner 78700 83972 0 0 3 0x14200 reaper reaper 18332 404497 0 0 3 0x14200 pgdaemon pagedaemon 55824 75369 0 0 3 0x14200 bored crynlk 64293 84138 0 0 3 0x14200 bored crypto 47185 388278 0 0 3 0x40014200 acpi0 acpi0 6000 331918 0 0 3 0x14200 bored softnet 68485 357 0 0 2 0x14200 systqmp 87265 147037 0 0 2 0x14200 systq 34451 323077 0 0 3 0x40014200 bored softclock 52642 415666 0 0 3 0x40014200 idle0 76572 102789 0 0 3 0x14200 bored smr 1 152275 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 9605 7225K 7742K 78643K 22810 0 0 pcb 13 11K 13K 78643K 2827 0 0 rtable 111 12K 13K 78643K 1739 0 0 ifaddr 90 20K 21K 78643K 805 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 426 0 0 iov 0 0K 32K 78643K 1439 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1217 76K 77K 78643K 5972 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 76 0 0 VM map 46 11K 11K 78643K 64 0 0 sem 12 0K 0K 78643K 2413 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 5573 0 0 sigio 0 0K 0K 78643K 175 0 0 proc 44 30K 54K 78643K 2061 0 0 subproc 32 2K 2K 78643K 546 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 4K 78643K 11976 0 0 in_multi 25 1K 2K 78643K 3557 0 0 ether_multi 1 0K 0K 78643K 57 0 0 mrt 1 0K 0K 78643K 29 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 120 530K 530K 78643K 120 0 0 exec 0 0K 1K 78643K 1209 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 205 350K 354K 78643K 15316 0 0 UVM aobj 130 4K 4K 78643K 148 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 1200 0 0 NDP 22 0K 1K 78643K 258 0 0 temp 220 3544K 4184K 78643K 264368 0 0 kqueue 0 0K 0K 78643K 45 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 64 120 0 116 1 0 1 1 0 8 0 rtpcb 80 540 0 540 15 14 1 1 0 8 1 rtentry 112 592 0 554 2 0 2 2 0 8 0 unpcb 120 5508 0 5497 1 0 1 1 0 8 0 syncache 264 47 0 47 16 16 0 1 0 8 0 sackhl 24 3 0 3 1 1 0 1 0 8 0 tcpqe 32 66 0 66 7 7 0 1 0 8 0 tcpcb 544 3418 0 3414 32 31 1 14 0 8 0 ipq 40 71 0 71 21 20 1 1 0 8 1 ipqe 40 1587 0 1587 21 20 1 1 0 8 1 inpcb 280 14832 0 14828 39 37 2 9 0 8 1 rttmr 72 7 0 6 3 2 1 1 0 8 0 ip6q 72 3 0 3 2 2 0 1 0 8 0 ip6af 40 8 0 8 2 2 0 1 0 8 0 nd6 48 100 0 97 7 6 1 1 0 8 0 pkpcb 40 40 0 40 14 14 0 1 0 8 0 ppxss 1128 84 0 84 28 28 0 1 0 8 0 art_heap8 4096 18 0 16 14 12 2 3 0 8 0 art_heap4 256 2816 0 2531 64 40 24 32 0 8 5 art_table 32 2834 0 2547 5 1 4 5 0 8 0 art_node 16 591 0 551 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 29 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 2411 0 2401 1 0 1 1 0 8 0 shmpl 112 146 0 18 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 10390 0 8984 46 0 46 46 0 8 0 ffsino 240 10390 0 8984 83 0 83 83 0 8 0 nchpl 144 19447 0 18952 60 39 21 60 0 8 0 uvmvnodes 72 8684 0 0 158 0 158 158 0 8 0 vnodes 208 8684 0 0 458 0 458 458 0 8 0 namei 1024 68931 0 68931 3 2 1 1 0 8 1 vcpupl 1984 45 0 1 6 0 6 6 0 8 0 vmpool 520 62 0 18 3 0 3 3 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 68563 0 68563 30 29 1 7 0 8 1 plimitpl 152 495 0 489 1 0 1 1 0 8 0 sigapl 432 5655 0 5643 2 0 2 2 0 8 0 futexpl 56 184278 0 184276 4 3 1 1 0 8 0 knotepl 112 1391 0 1372 7 6 1 2 0 8 0 kqueuepl 104 2378 0 2375 7 6 1 4 0 8 0 pipepl 112 3948 0 3929 15 14 1 2 0 8 0 fdescpl 424 5656 0 5643 2 0 2 2 0 8 0 filepl 120 59186 0 59093 35 31 4 10 0 8 1 lockfpl 104 2180 0 2180 4 3 1 1 0 8 1 lockfspl 48 719 0 719 4 3 1 1 0 8 1 sessionpl 112 49 0 41 1 0 1 1 0 8 0 pgrppl 48 97 0 89 1 0 1 1 0 8 0 ucredpl 96 8985 0 8979 1 0 1 1 0 8 0 zombiepl 144 5645 0 5645 2 1 1 1 0 8 1 processpl 864 5673 0 5645 4 0 4 4 0 8 0 procpl 632 12910 0 12870 5 1 4 5 0 8 0 sosppl 128 90 0 90 26 25 1 1 0 8 1 sockpl 384 21258 0 21243 67 62 5 13 0 8 2 mcl64k 65536 2121 0 2121 195 194 1 47 0 8 1 mcl16k 16384 116 0 116 19 18 1 1 0 8 1 mcl12k 12288 188 0 188 17 16 1 1 0 8 1 mcl9k 9216 100 0 100 30 29 1 1 0 8 1 mcl8k 8192 280 0 280 10 9 1 1 0 8 1 mcl4k 4096 693 0 693 4 3 1 1 0 8 1 mcl2k2 2112 59 0 59 25 24 1 1 0 8 1 mcl2k 2048 80821 0 80780 21 15 6 14 0 8 0 mtagpl 80 275 0 262 8 7 1 1 0 8 0 mbufpl 256 186907 0 186827 209 191 18 31 0 8 7 bufpl 256 30441 0 21779 551 8 543 543 0 8 0 anonpl 16 731342 0 711364 278 178 100 103 0 62 14 amapchunkpl 152 34355 0 34199 167 153 14 20 0 158 5 amappl16 192 33556 0 32350 274 207 67 73 0 8 6 amappl15 184 1365 0 1365 5 5 0 1 0 8 0 amappl14 176 1207 0 1200 1 0 1 1 0 8 0 amappl13 168 798 0 797 6 5 1 1 0 8 0 amappl12 160 78 0 78 5 5 0 1 0 8 0 amappl11 152 725 0 720 1 0 1 1 0 8 0 amappl10 144 340 0 338 1 0 1 1 0 8 0 amappl9 136 2395 0 2390 1 0 1 1 0 8 0 amappl8 128 1956 0 1891 3 0 3 3 0 8 0 amappl7 120 500 0 491 1 0 1 1 0 8 0 amappl6 112 677 0 659 1 0 1 1 0 8 0 amappl5 104 468 0 461 1 0 1 1 0 8 0 amappl4 96 6029 0 6002 1 0 1 1 0 8 0 amappl3 88 1533 0 1515 1 0 1 1 0 8 0 amappl2 80 43969 0 43895 3 1 2 3 0 8 0 amappl1 72 113955 0 113547 25 16 9 20 0 8 0 amappl 80 13701 0 13638 2 0 2 2 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 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 147 0 18 3 0 3 3 0 8 0 uaddrrnd 24 5718 0 5643 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5718 0 5643 1 0 1 1 0 8 0 vmmpekpl 168 41130 0 41099 2 0 2 2 0 8 0 vmmpepl 168 695807 0 693326 529 378 151 151 0 357 40 vmsppl 272 5655 0 5643 2 1 1 2 0 8 0 pdppl 4096 11442 0 11366 13 3 10 10 0 8 0 pvpl 32 1958198 0 1935531 627 398 229 331 0 265 39 pmappl 200 5717 0 5661 3 0 3 3 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1225 0 529 20 0 20 20 0 8 0