uvm_fault(0xfffffd805706f118, 0x100b, 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(0xfffffd805706f118, 0x100b, 0, 1) -> e in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff80001e7c1ab0, count: 0 ddb> trace in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000ad6300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7800,6) at if_setrdomain+0x19a sys/net/if.c:1771 ifioctl(fffffd806b6267d0,8020699f,ffff80001e7c1c40,ffff80001d6bf160) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6bf160,ffff80001e7c1d58,ffff80001e7c1da0) at sys_ioctl+0x4a1 syscall(ffff80001e7c1e20) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f7a1117a50, count: -8 ddb> show registers rdi 0xffff80001d782000 rsi 0x1a117 acpi_pdirpa+0x5f7f rbp 0xffff80001e7c1a60 rbx 0 rdx 0xffff80001d782000 rcx 0x1a116 acpi_pdirpa+0x5f7e rax 0xffffffff817ba21d in_delmulti+0x8d r8 0xffff800000ad6300 r9 0xffffffff81256843 rt_ifa_purge+0x153 r10 0x5 r11 0xa8d334782aa53408 r12 0 r13 0x7665642f r14 0xfff r15 0x1 rip 0xffffffff817ba21d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001e7c1a00 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> show proc PROC (syz-executor.0) pid=187863 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6bec70,0xffffffff8280e530 process=0xffff80001d6c19e0 user=0xffff80001e7bc000, vmspace=0xfffffd805706f118 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 15613 457320 60004 0 2 0 syz-executor.0 *15613 187863 60004 0 7 0x4000000 syz-executor.0 69353 392694 37130 0 3 0x2 biowait syz-executor.1 87346 416933 1 0 3 0x100083 ttyin getty 69285 63334 0 0 3 0x14200 bored sosplice 60004 115149 37130 0 3 0x82 nanosleep syz-executor.0 37130 272906 924 0 3 0x82 thrsleep syz-fuzzer 37130 87593 924 0 3 0x4000082 nanosleep syz-fuzzer 37130 229834 924 0 3 0x4000082 thrsleep syz-fuzzer 37130 82626 924 0 3 0x4000082 thrsleep syz-fuzzer 37130 163311 924 0 3 0x4000082 thrsleep syz-fuzzer 37130 103648 924 0 3 0x4000082 kqread syz-fuzzer 37130 3461 924 0 3 0x4000082 thrsleep syz-fuzzer 924 106927 90189 0 3 0x10008a pause ksh 90189 144487 53289 0 3 0x92 select sshd 53289 465540 1 0 3 0x80 select sshd 55371 326426 86768 73 3 0x100090 kqread syslogd 86768 278262 1 0 3 0x100082 netio syslogd 55231 10518 1 77 2 0x100090 dhclient 97442 455501 1 0 3 0x80 poll dhclient 97933 43735 0 0 3 0x14200 bored smr 85678 294981 0 0 2 0x14200 zerothread 3517 19703 0 0 3 0x14200 aiodoned aiodoned 17709 4521 0 0 3 0x14200 syncer update 99189 512881 0 0 3 0x14200 cleaner cleaner 43705 394645 0 0 3 0x14200 reaper reaper 6436 364103 0 0 3 0x14200 pgdaemon pagedaemon 88054 381441 0 0 3 0x14200 bored crynlk 98459 324899 0 0 3 0x14200 bored crypto 52338 451215 0 0 3 0x40014200 acpi0 acpi0 92997 16027 0 0 3 0x14200 bored softnet 61620 46696 0 0 2 0x14200 systqmp 45382 386885 0 0 3 0x14200 bored systq 90898 216480 0 0 3 0x40014200 bored softclock 66136 190840 0 0 3 0x40014200 idle0 1 47728 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 9518 6371K 7199K 78643K 12665 0 pcb 13 8K 8K 78643K 87 0 rtable 84 4K 10K 78643K 900 0 ifaddr 76 14K 17K 78643K 288 0 sysctl 2 0K 0K 78643K 2 0 counters 20 16K 16K 78643K 37 0 ioctlops 0 0K 4K 78643K 128 0 iov 0 0K 12K 78643K 56 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1814 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 667 0 sigio 0 0K 0K 78643K 4 0 proc 51 38K 55K 78643K 553 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 32 0 in_multi 39 2K 3K 78643K 205 0 ether_multi 1 0K 0K 78643K 15 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 253 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 144 88K 97K 78643K 2434 0 UVM aobj 36 2K 2K 78643K 38 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 70 0 NDP 13 0K 0K 78643K 56 0 temp 116 3874K 3938K 78643K 9798 0 kqueue 3 4K 14K 78643K 28 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 16 0 14 1 0 1 1 0 8 0 rtpcb 88 49 0 47 1 0 1 1 0 8 0 rtentry 112 119 0 93 2 0 2 2 0 8 0 unpcb 120 859 0 850 1 0 1 1 0 8 0 syncache 272 7 0 7 2 2 0 1 0 8 0 tcpqe 32 153 0 153 1 1 0 1 0 8 0 tcpcb 592 173 0 167 2 1 1 2 0 8 0 ipq 40 123 0 123 3 2 1 1 0 8 1 ipqe 40 5451 0 5451 3 2 1 1 0 8 1 inpcb 296 971 0 963 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 38 0 37 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1136 2 0 2 2 2 0 1 0 8 0 pfstscr 40 4 0 3 1 0 1 1 0 8 0 pfrktable 1344 146 0 143 1 0 1 1 0 8 0 pftag 88 33 0 32 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 6 1 0 1 1 0 8 0 pfstate 328 4 0 3 1 0 1 1 0 8 0 pfrule 1360 32 0 24 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 526 0 384 15 2 13 15 0 8 1 art_table 32 527 0 384 2 0 2 2 0 8 0 art_node 16 118 0 84 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 35 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2211 0 818 88 0 88 88 0 8 0 ffsino 240 2211 0 818 83 0 83 83 0 8 0 nchpl 144 3272 0 1686 60 0 60 60 0 8 0 uvmvnodes 72 2767 0 0 51 0 51 51 0 8 0 vnodes 208 2767 0 0 146 0 146 146 0 8 0 namei 1024 9306 0 9306 3 2 1 1 0 8 1 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 528 8 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 44 0 42 1 0 1 1 0 8 0 scxspl 200 9700 0 9699 2 1 1 1 0 8 0 plimitpl 152 35 0 28 1 0 1 1 0 8 0 sigapl 424 846 0 817 4 0 4 4 0 8 0 futexpl 56 14056 0 14056 3 2 1 1 0 8 1 knotepl 112 131 0 111 1 0 1 1 0 8 0 kqueuepl 152 69 0 67 1 0 1 1 0 8 0 pipepl 272 134 0 123 3 2 1 2 0 8 0 fdescpl 432 831 0 817 2 0 2 2 0 8 0 filepl 120 5262 0 5163 4 0 4 4 0 8 0 lockfpl 104 134 0 133 1 0 1 1 0 8 0 lockfspl 48 56 0 55 1 0 1 1 0 8 0 sessionpl 120 21 0 11 1 0 1 1 0 8 0 pgrppl 48 25 0 15 1 0 1 1 0 8 0 ucredpl 96 438 0 431 1 0 1 1 0 8 0 zombiepl 144 817 0 817 1 0 1 1 0 8 1 processpl 944 846 0 817 4 0 4 4 0 8 0 procpl 632 1573 0 1537 4 0 4 4 0 8 0 sosppl 144 13 0 13 2 1 1 1 0 8 1 sockpl 400 1889 0 1870 7 3 4 4 0 8 2 mcl64k 65536 189 0 189 3 2 1 1 0 8 1 mcl16k 16384 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 29 0 29 3 2 1 1 0 8 1 mcl9k 9216 10 0 10 2 1 1 1 0 8 1 mcl8k 8192 39 0 39 3 2 1 1 0 8 1 mcl4k 4096 55 0 55 4 3 1 1 0 8 1 mcl2k2 2112 5 0 5 3 2 1 1 0 8 1 mcl2k 2048 95133 0 95095 17 10 7 13 0 8 0 mtagpl 96 259 0 259 6 1 5 5 0 8 5 mbufpl 256 178186 0 178105 77 38 39 43 0 8 28 bufpl 280 4276 0 118 297 0 297 297 0 8 0 anonpl 16 99105 0 81281 81 1 80 80 0 107 0 amapchunkpl 152 4191 0 3995 26 13 13 22 0 158 4 amappl16 192 3615 0 2588 56 4 52 55 0 8 0 amappl15 184 74 0 73 1 0 1 1 0 8 0 amappl14 176 67 0 64 1 0 1 1 0 8 0 amappl13 168 48 0 44 1 0 1 1 0 8 0 amappl12 160 34 0 31 1 0 1 1 0 8 0 amappl11 152 62 0 52 1 0 1 1 0 8 0 amappl10 144 92 0 89 1 0 1 1 0 8 0 amappl9 136 820 0 816 1 0 1 1 0 8 0 amappl8 128 811 0 776 3 1 2 2 0 8 0 amappl7 120 121 0 109 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 756 0 744 1 0 1 1 0 8 0 amappl4 96 481 0 455 1 0 1 1 0 8 0 amappl3 88 199 0 189 1 0 1 1 0 8 0 amappl2 80 5738 0 5672 2 0 2 2 0 8 0 amappl1 72 28328 0 27912 23 14 9 17 0 8 0 amappl 80 1866 0 1804 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 2 1 0 1 1 0 8 0 uaddrrnd 24 839 0 817 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 839 0 817 1 0 1 1 0 8 0 vmmpekpl 168 8453 0 8428 2 0 2 2 0 8 0 vmmpepl 168 109877 0 107726 173 39 134 134 0 357 36 vmsppl 272 838 0 817 2 0 2 2 0 8 0 pdppl 4096 1684 0 1642 9 3 6 6 0 8 0 pvpl 32 298188 0 277602 188 1 187 187 0 265 6 pmappl 200 838 0 817 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 325 0 72 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000ad6300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7800,6) at if_setrdomain+0x19a sys/net/if.c:1771 ifioctl(fffffd806b6267d0,8020699f,ffff80001e7c1c40,ffff80001d6bf160) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6bf160,ffff80001e7c1d58,ffff80001e7c1da0) at sys_ioctl+0x4a1 syscall(ffff80001e7c1e20) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f7a1117a50, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000ad6300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac7800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000ac7800,6) at if_setrdomain+0x19a sys/net/if.c:1771 ifioctl(fffffd806b6267d0,8020699f,ffff80001e7c1c40,ffff80001d6bf160) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6bf160,ffff80001e7c1d58,ffff80001e7c1da0) at sys_ioctl+0x4a1 syscall(ffff80001e7c1e20) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f7a1117a50, count: -8