uvm_fault(0xfffffd807f00a5c0, 0x2fd811bf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00a5c0, 0x2fd811bf, 0, 1) -> e in6_purgeaddr(ffff800000b4cd00) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff800022d6b890, count: 0 ddb{1}> trace in6_purgeaddr(ffff800000b4cd00) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000b2a000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_setrdomain(ffff800000b2a000,ad) at if_setrdomain+0x1a2 sys/net/if.c:1845 ifioctl(fffffd80627074b0,8020699f,ffff800022d6b9e0,ffff800020abeee8) at ifioctl+0x1303 sys/net/if.c:2103 sys_ioctl(ffff800020abeee8,ffff800022d6baf8,ffff800022d6bb40) at sys_ioctl+0x5b9 syscall(ffff800022d6bbc0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022d6bbc0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,4d940302010) at Xsyscall+0x128 end of kernel end trace frame: 0x4dc2dc76650, count: -7 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800022d6b820 rbx 0 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020b52000 rax 0 r8 0xffffffff81140454 rt_ifa_dellocal+0x44 r9 0x1 r10 0x18 r11 0x66b2eab18e54ab90 r12 0x2fd811b7 r13 0 r14 0xffff800000b4cd00 r15 0xffff800000b2a000 rip 0xffffffff8162bb25 in6_purgeaddr+0x135 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800022d6b7b0 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{1}> show proc PROC (syz-executor.1) pid=359597 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe290,0xffffffff82662210 process=0xffff800020a8aa90 user=0xffff800022d66000, vmspace=0xfffffd807f00a5c0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64791 397909 79178 0 2 0 syz-executor.1 *64791 359597 79178 0 7 0x4000000 syz-executor.1 79178 472347 47882 0 3 0x82 nanosleep syz-executor.1 25349 142240 1 0 3 0x100083 ttyin getty 35804 363647 47882 0 2 0x2 syz-executor.0 34123 76356 0 0 3 0x14200 bored sosplice 47882 66408 84718 0 3 0x82 thrsleep syz-fuzzer 47882 427363 84718 0 3 0x4000082 nanosleep syz-fuzzer 47882 241785 84718 0 3 0x4000082 thrsleep syz-fuzzer 47882 287866 84718 0 3 0x4000082 kqread syz-fuzzer 47882 130488 84718 0 3 0x4000082 nanosleep syz-fuzzer 47882 363088 84718 0 3 0x4000082 thrsleep syz-fuzzer 47882 384105 84718 0 3 0x4000082 thrsleep syz-fuzzer 47882 34272 84718 0 3 0x4000082 thrsleep syz-fuzzer 47882 435936 84718 0 3 0x4000082 thrsleep syz-fuzzer 47882 126641 84718 0 3 0x4000082 thrsleep syz-fuzzer 84718 359656 63237 0 3 0x10008a pause ksh 63237 285605 25322 0 3 0x92 select sshd 25322 402586 1 0 3 0x80 select sshd 10824 97319 22021 74 3 0x100092 bpf pflogd 22021 411334 1 0 3 0x80 netio pflogd 32480 468488 35589 73 3 0x100090 kqread syslogd 35589 156242 1 0 3 0x100082 netio syslogd 92164 215277 1 77 7 0x100090 dhclient 98305 187210 1 0 3 0x80 poll dhclient 36115 145044 0 0 3 0x14200 pgzero zerothread 45982 297628 0 0 3 0x14200 aiodoned aiodoned 73182 94141 0 0 3 0x14200 syncer update 80362 366657 0 0 3 0x14200 cleaner cleaner 20166 489750 0 0 3 0x14200 reaper reaper 40269 295423 0 0 3 0x14200 pgdaemon pagedaemon 16589 209285 0 0 3 0x14200 bored crynlk 88646 419926 0 0 3 0x14200 bored crypto 68603 69508 0 0 3 0x40014200 acpi0 acpi0 98269 238294 0 0 3 0x40014200 idle1 63988 445665 0 0 3 0x14200 bored softnet 37804 188066 0 0 2 0x14200 systqmp 69702 283291 0 0 3 0x14200 bored systq 33694 247057 0 0 3 0x40014200 bored softclock 34887 312203 0 0 3 0x40014200 idle0 65435 229550 0 0 3 0x14200 bored smr 1 102974 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 64791 (syz-executor.1) thread 0xffff800020abeee8 (359597) exclusive rwlock netlock r = 0 (0xffffffff8250cdb8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 ifioctl+0x12f6 sys/net/if.c:2103 #2 sys_ioctl+0x5b9 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82624c28) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9606 7110K 8797K 78643K 34510 0 0 pcb 13 12K 14K 78643K 985 0 0 rtable 126 14K 15K 78643K 4293 0 0 ifaddr 98 20K 21K 78643K 542 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1634 0 0 iov 0 0K 28K 78643K 3838 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1224 77K 79K 78643K 11636 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 445 0 0 VM map 15 7K 8K 78643K 38 0 0 sem 12 0K 0K 78643K 6028 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 6656 0 0 sigio 0 0K 0K 78643K 284 0 0 proc 62 63K 95K 78643K 1650 0 0 subproc 32 2K 2K 78643K 323 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 310 0 0 in_multi 21 1K 2K 78643K 418 0 0 ether_multi 1 0K 0K 78643K 51 0 0 mrt 0 0K 0K 78643K 25 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 930 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 154 137K 146K 78643K 20952 0 0 UVM aobj 130 4K 4K 78643K 137 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 935 0 0 NDP 22 0K 0K 78643K 165 0 0 temp 221 3565K 4205K 78643K 85134 0 0 kqueue 0 0K 0K 78643K 39 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 63 0 59 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 2692 0 2690 1 0 1 1 0 8 0 rtentry 112 394 0 349 2 0 2 2 0 8 0 unpcb 120 2586 0 2574 6 5 1 2 0 8 0 syncache 264 37 0 37 13 12 1 1 0 8 1 tcpqe 32 15 0 15 11 11 0 1 0 8 0 tcpcb 544 3044 0 3039 62 55 7 14 0 8 6 inpcb 280 7431 0 7422 53 46 7 13 0 8 5 rttmr 72 7 0 7 5 5 0 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 48 54 0 53 1 0 1 1 0 8 0 pkpcb 40 19 0 19 7 7 0 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 67 0 67 12 11 1 1 0 8 1 pffrag 232 102 0 102 15 14 1 1 0 482 1 pffrnode 88 102 0 102 15 14 1 1 0 8 1 pffrent 40 2931 0 2931 15 14 1 1 0 8 1 pfosfp 40 846 0 846 5 2 3 5 0 8 3 pfosfpen 112 1428 0 1428 21 2 19 21 0 8 19 pfstitem 24 347 0 290 1 0 1 1 0 8 0 pfstkey 112 347 0 290 4 1 3 3 0 8 0 pfstate 328 347 0 290 9 3 6 7 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 18 0 11 10 3 7 7 0 8 0 art_heap4 256 1653 0 1419 23 7 16 19 0 8 1 art_table 32 1671 0 1430 4 1 3 3 0 8 0 art_node 16 391 0 348 1 0 1 1 0 8 0 sysvmsgpl 40 60 0 20 1 0 1 1 0 8 0 semapl 112 6026 0 6016 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 16162 0 14739 47 0 47 47 0 8 0 ffsino 272 16162 0 14739 97 1 96 96 0 8 0 nchpl 144 30859 0 30378 61 40 21 61 0 8 0 uvmvnodes 72 6051 0 0 111 0 111 111 0 8 0 vnodes 208 6051 0 0 319 0 319 319 0 8 0 namei 1024 91243 0 91243 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 13 0 0 2 0 2 2 0 8 0 vmpool 552 36 0 23 3 2 1 2 0 8 0 scsiplug 64 6 0 6 5 5 0 1 0 8 0 scxspl 192 70477 0 70477 39 38 1 7 0 8 1 plimitpl 152 367 0 359 1 0 1 1 0 8 0 sigapl 432 6806 0 6791 3 1 2 3 0 8 0 futexpl 56 183001 0 183001 2 1 1 1 0 8 1 knotepl 112 747 0 728 2 1 1 2 0 8 0 kqueuepl 104 1640 0 1638 13 11 2 4 0 8 1 pipepl 112 8048 0 8029 4 3 1 2 0 8 0 fdescpl 488 6807 0 6791 3 0 3 3 0 8 0 filepl 152 66477 0 66375 57 47 10 14 0 8 6 lockfpl 104 2000 0 1999 1 0 1 1 0 8 0 lockfspl 48 626 0 625 1 0 1 1 0 8 0 sessionpl 112 38 0 27 1 0 1 1 0 8 0 pgrppl 48 96 0 85 1 0 1 1 0 8 0 ucredpl 96 4065 0 4055 1 0 1 1 0 8 0 zombiepl 144 6792 0 6792 2 1 1 1 0 8 1 processpl 896 6824 0 6792 4 0 4 4 0 8 0 procpl 632 19007 0 18965 7 2 5 5 0 8 0 srpgc 64 33 0 31 10 9 1 1 0 8 0 sosppl 128 156 0 156 13 13 0 1 0 8 0 sockpl 384 12808 0 12785 86 77 9 22 0 8 6 mcl64k 65536 265 0 0 33 28 5 33 0 8 0 mcl16k 16384 37 0 0 5 3 2 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 23 0 0 3 0 3 3 0 8 0 mcl4k 4096 22 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 207 0 0 21 5 16 21 0 8 0 mtagpl 80 82 0 0 2 0 2 2 0 8 0 mbufpl 256 809 0 0 43 0 43 43 0 8 0 bufpl 256 24106 0 17048 442 0 442 442 0 8 0 anonpl 16 655539 0 634939 182 93 89 108 0 124 0 amapchunkpl 152 39655 0 39497 52 42 10 15 0 158 0 amappl16 192 34837 0 33657 148 80 68 71 0 8 6 amappl15 184 70 0 69 1 0 1 1 0 8 0 amappl14 176 1895 0 1887 1 0 1 1 0 8 0 amappl13 168 20 0 20 3 3 0 1 0 8 0 amappl12 160 223 0 222 1 0 1 1 0 8 0 amappl11 152 2258 0 2243 1 0 1 1 0 8 0 amappl10 144 640 0 635 1 0 1 1 0 8 0 amappl9 136 1199 0 1194 1 0 1 1 0 8 0 amappl8 128 818 0 771 2 0 2 2 0 8 0 amappl7 120 729 0 721 1 0 1 1 0 8 0 amappl6 112 2254 0 2237 1 0 1 1 0 8 0 amappl5 104 520 0 506 1 0 1 1 0 8 0 amappl4 96 6038 0 5999 2 1 1 2 0 8 0 amappl3 88 3528 0 3519 1 0 1 1 0 8 0 amappl2 80 54918 0 54845 3 1 2 3 0 8 0 amappl1 72 141295 0 140859 25 15 10 20 0 8 0 amappl 80 19645 0 19591 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 64 136 0 7 3 0 3 3 0 8 0 uaddrrnd 24 6843 0 6791 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6843 0 6791 1 0 1 1 0 8 0 vmmpekpl 168 58827 0 58782 3 0 3 3 0 8 0 vmmpepl 168 828083 0 825704 339 189 150 153 0 357 35 vmsppl 368 6806 0 6791 2 0 2 2 0 8 0 pdppl 4096 13693 0 13641 11 4 7 8 0 8 0 pvpl 32 1782565 0 1759444 359 156 203 249 0 265 3 pmappl 232 6842 0 6814 3 1 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 765 0 111 20 0 20 20 0 8 0