uvm_fault(0xfffffd8053a39120, 0x8c, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd8053a39120, 0x8c, 0, 1) -> e in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff8000207c7900, count: 0 ddb> trace in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000afd800) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7000,6) at if_setrdomain+0x19a sys/net/if.c:1778 ifioctl(fffffd806a6841b0,8020699f,ffff8000207c7a90,ffff80001d6bf8d8) at ifioctl+0x169d sys/net/if.c:2038 sys_ioctl(ffff80001d6bf8d8,ffff8000207c7ba8,ffff8000207c7bf0) at sys_ioctl+0x4a1 syscall(ffff8000207c7c70) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbfce33f3450, count: -8 ddb> show registers rdi 0xffff80001e77e000 rsi 0x1a4c1 acpi_pdirpa+0x6329 rbp 0xffff8000207c78b0 rbx 0 rdx 0xffff80001e77e000 rcx 0x1a4c0 acpi_pdirpa+0x6328 rax 0xffffffff81b5242d in_delmulti+0x8d r8 0xffff800000afd800 r9 0xffffffff817c4993 rt_ifa_purge+0x153 r10 0x5 r11 0xfd9293c33bf5447b r12 0 r13 0x3 r14 0x80 r15 0x1 rip 0xffffffff81b5242d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000207c7850 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> show proc PROC (syz-executor.0) pid=476297 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6be028,0xffffffff828678e0 process=0xffff80001d6c0ed0 user=0xffff8000207c2000, vmspace=0xfffffd8053a39120 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 77212 135382 39863 0 2 0 syz-executor.0 *77212 476297 39863 0 7 0x4000000 syz-executor.0 37005 185033 0 0 3 0x14200 bored sosplice 39863 320997 47137 0 3 0x82 nanosleep syz-executor.0 81481 383360 47137 0 3 0x2 biowait syz-executor.1 47137 276247 8314 0 3 0x82 thrsleep syz-fuzzer 47137 302310 8314 0 3 0x4000082 nanosleep syz-fuzzer 47137 107074 8314 0 3 0x4000082 thrsleep syz-fuzzer 47137 33366 8314 0 3 0x4000082 thrsleep syz-fuzzer 47137 237703 8314 0 3 0x4000082 thrsleep syz-fuzzer 47137 138847 8314 0 3 0x4000082 kqread syz-fuzzer 8314 455456 26983 0 3 0x10008a pause ksh 26983 139081 25872 0 3 0x92 select sshd 84864 2871 1 0 3 0x100083 ttyin getty 25872 114195 1 0 3 0x80 select sshd 83703 270357 67813 73 3 0x100090 kqread syslogd 67813 509633 1 0 3 0x100082 netio syslogd 44844 311410 1 77 2 0x100090 dhclient 61391 26377 1 0 3 0x80 poll dhclient 51228 344409 0 0 3 0x14200 bored smr 97948 496308 0 0 2 0x14200 zerothread 34497 93761 0 0 3 0x14200 aiodoned aiodoned 19758 332363 0 0 3 0x14200 syncer update 83071 516090 0 0 3 0x14200 cleaner cleaner 68654 512500 0 0 3 0x14200 reaper reaper 68808 403592 0 0 3 0x14200 pgdaemon pagedaemon 5783 362640 0 0 3 0x14200 bored crynlk 97805 242082 0 0 3 0x14200 bored crypto 64411 451002 0 0 3 0x40014200 acpi0 acpi0 73921 263349 0 0 3 0x14200 bored softnet 92168 392220 0 0 2 0x14200 systqmp 6704 127223 0 0 3 0x14200 bored systq 90866 247771 0 0 3 0x40014200 bored softclock 27485 255481 0 0 3 0x40014200 idle0 1 431869 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 9483 6337K 6718K 78643K 10969 0 pcb 13 8K 8K 78643K 73 0 rtable 115 4K 8K 78643K 422 0 ifaddr 73 15K 15K 78643K 140 0 counters 21 16K 16K 78643K 25 0 ioctlops 0 0K 4K 78643K 74 0 iov 0 0K 16K 78643K 43 0 mount 1 1K 1K 78643K 1 0 vnodes 1213 76K 77K 78643K 1445 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 12 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 38 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 400 0 sigio 0 0K 0K 78643K 4 0 proc 49 38K 54K 78643K 379 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 37 0 in_multi 72 3K 4K 78643K 144 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 213 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 147 88K 105K 78643K 1760 0 UVM aobj 19 6K 7K 78643K 38 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 59 0 NDP 10 0K 0K 78643K 30 0 temp 98 3861K 3925K 78643K 12663 0 kqueue 3 4K 6K 78643K 4 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 3 1 0 1 1 0 8 0 rtpcb 88 38 0 36 1 0 1 1 0 8 0 rtentry 112 67 0 22 2 0 2 2 0 8 0 unpcb 120 557 0 546 1 0 1 1 0 8 0 syncache 272 7 0 7 2 1 1 1 0 8 1 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 592 127 0 118 3 1 2 2 0 8 1 ipq 40 3 0 3 2 2 0 1 0 8 0 ipqe 40 51 0 51 2 2 0 1 0 8 0 inpcb 296 474 0 466 5 3 2 2 0 8 1 rttmr 72 2 0 2 2 2 0 1 0 8 0 nd6 48 19 0 10 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pfrktable 1344 65 0 63 1 0 1 1 0 8 0 pftag 88 13 0 12 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 6 0 4 2 1 1 1 0 8 0 pfstate 328 3 0 2 2 1 1 1 0 8 0 pfrule 1360 14 0 10 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 221 0 0 14 0 14 14 0 8 0 art_table 32 222 0 0 2 0 2 2 0 8 0 art_node 16 66 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 32 0 22 1 0 1 1 0 8 0 shmpl 112 35 0 19 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2014 0 621 88 0 88 88 0 8 0 ffsino 240 2014 0 621 83 0 83 83 0 8 0 nchpl 144 2810 0 1210 60 0 60 60 0 8 0 uvmvnodes 72 2144 0 0 39 0 39 39 0 8 0 vnodes 208 2144 0 0 113 0 113 113 0 8 0 namei 1024 8105 0 8105 5 4 1 1 0 8 1 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 528 9 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 20 0 18 1 0 1 1 0 8 0 scxspl 200 7925 0 7924 2 1 1 1 0 8 0 plimitpl 152 28 0 21 1 0 1 1 0 8 0 sigapl 424 587 0 558 4 0 4 4 0 8 0 futexpl 56 7758 0 7758 5 4 1 1 0 8 1 knotepl 112 64 0 44 1 0 1 1 0 8 0 kqueuepl 152 42 0 40 1 0 1 1 0 8 0 pipepl 272 130 0 119 3 2 1 2 0 8 0 fdescpl 432 572 0 558 2 0 2 2 0 8 0 filepl 120 4090 0 3989 4 0 4 4 0 8 0 lockfpl 104 68 0 67 1 0 1 1 0 8 0 lockfspl 48 21 0 20 1 0 1 1 0 8 0 sessionpl 120 17 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 13 1 0 1 1 0 8 0 ucredpl 96 1103 0 1096 1 0 1 1 0 8 0 zombiepl 144 558 0 558 1 0 1 1 0 8 1 processpl 944 587 0 558 4 0 4 4 0 8 0 procpl 632 1043 0 1008 6 2 4 4 0 8 0 sosppl 144 2 0 2 1 1 0 1 0 8 0 sockpl 400 1077 0 1056 6 2 4 4 0 8 1 mcl64k 65536 24 0 24 4 3 1 1 0 8 1 mcl16k 16384 5 0 5 2 2 0 1 0 8 0 mcl12k 12288 10 0 10 5 4 1 1 0 8 1 mcl9k 9216 4 0 4 2 2 0 1 0 8 0 mcl8k 8192 13 0 13 4 4 0 1 0 8 0 mcl4k 4096 41 0 41 5 4 1 1 0 8 1 mcl2k2 2112 3 0 3 3 2 1 1 0 8 1 mcl2k 2048 93673 0 93632 13 7 6 12 0 8 0 mtagpl 96 22 0 14 2 1 1 1 0 8 0 mbufpl 256 150374 0 150213 26 13 13 19 0 8 0 bufpl 280 4064 0 122 282 0 282 282 0 8 0 anonpl 16 67311 0 48096 84 4 80 80 0 107 0 amapchunkpl 152 2278 0 2063 12 2 10 11 0 158 0 amappl16 192 2694 0 1666 54 2 52 53 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 2 0 0 1 0 1 1 0 8 0 amappl13 168 216 0 212 1 0 1 1 0 8 0 amappl12 160 23 0 20 1 0 1 1 0 8 0 amappl11 152 44 0 35 1 0 1 1 0 8 0 amappl10 144 25 0 19 1 0 1 1 0 8 0 amappl9 136 530 0 526 1 0 1 1 0 8 0 amappl8 128 473 0 442 2 0 2 2 0 8 0 amappl7 120 102 0 91 1 0 1 1 0 8 0 amappl6 112 29 0 21 1 0 1 1 0 8 0 amappl5 104 515 0 503 1 0 1 1 0 8 0 amappl4 96 620 0 593 1 0 1 1 0 8 0 amappl3 88 131 0 123 1 0 1 1 0 8 0 amappl2 80 3753 0 3688 2 0 2 2 0 8 0 amappl1 72 21587 0 21165 23 14 9 17 0 8 0 amappl 80 1284 0 1220 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 37 0 19 1 0 1 1 0 8 0 uaddrrnd 24 581 0 560 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 581 0 560 1 0 1 1 0 8 0 vmmpekpl 168 7535 0 7509 2 0 2 2 0 8 0 vmmpepl 168 76442 0 74282 132 32 100 119 0 357 2 vmsppl 272 580 0 560 3 1 2 2 0 8 0 pdppl 4096 1168 0 1127 7 1 6 6 0 8 0 pvpl 32 207757 0 185813 187 3 184 186 0 265 0 pmappl 200 580 0 560 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 272 0 46 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000afd800) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7000,6) at if_setrdomain+0x19a sys/net/if.c:1778 ifioctl(fffffd806a6841b0,8020699f,ffff8000207c7a90,ffff80001d6bf8d8) at ifioctl+0x169d sys/net/if.c:2038 sys_ioctl(ffff80001d6bf8d8,ffff8000207c7ba8,ffff8000207c7bf0) at sys_ioctl+0x4a1 syscall(ffff8000207c7c70) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbfce33f3450, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000afd800) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7000,6) at if_setrdomain+0x19a sys/net/if.c:1778 ifioctl(fffffd806a6841b0,8020699f,ffff8000207c7a90,ffff80001d6bf8d8) at ifioctl+0x169d sys/net/if.c:2038 sys_ioctl(ffff80001d6bf8d8,ffff8000207c7ba8,ffff8000207c7bf0) at sys_ioctl+0x4a1 syscall(ffff8000207c7c70) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbfce33f3450, count: -8