login: uvm_fault(0xfffffd806bc0acc0, 0x3fff7ee000b, 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(0xfffffd806bc0acc0, 0x3fff7ee000b, 0, 1) -> e in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff80001d7912e0, count: 0 ddb> trace in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b3f600) 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:1771 ifioctl(fffffd8065d3b190,8020699f,ffff80001d791470,ffff80001d6be508) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6be508,ffff80001d791588,ffff80001d7915d0) at sys_ioctl+0x4a1 syscall(ffff80001d791650) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4ac32c7330, count: -8 ddb> show registers rdi 0xffff80001d79a000 rsi 0x12d62 __ALIGN_SIZE+0x11d62 rbp 0xffff80001d791290 rbx 0 rdx 0xffff80001d79a000 rcx 0x12d61 __ALIGN_SIZE+0x11d61 rax 0xffffffff817ba21d in_delmulti+0x8d r8 0xffff800000b3f600 r9 0xffffffff81256843 rt_ifa_purge+0x153 r10 0x5 r11 0x172fed5eed4353d7 r12 0 r13 0x3 r14 0x3fff7edffff r15 0x1 rip 0xffffffff817ba21d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d791230 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> show proc PROC (syz-executor.1) pid=11157 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6be290,0xffffffff8280e530 process=0xffff80001d6eab40 user=0xffff80001d78c000, vmspace=0xfffffd806bc0acc0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 3585 129323 72878 0 2 0 syz-executor.1 * 3585 11157 72878 0 7 0x4000000 syz-executor.1 76129 464674 1 0 3 0x100083 ttyin getty 57069 342860 0 0 3 0x14280 nfsidl nfsio 40488 33068 0 0 3 0x14280 nfsidl nfsio 59892 158747 0 0 3 0x14280 nfsidl nfsio 27855 372702 0 0 3 0x14280 nfsidl nfsio 40893 481814 0 0 3 0x14280 nfsidl nfsio 770 383563 0 0 3 0x14280 nfsidl nfsio 24751 498058 0 0 3 0x14280 nfsidl nfsio 16670 392959 0 0 3 0x14280 nfsidl nfsio 27238 266973 0 0 3 0x14280 nfsidl nfsio 42962 11636 0 0 3 0x14280 nfsidl nfsio 57687 450911 0 0 3 0x14280 nfsidl nfsio 49935 209223 0 0 3 0x14280 nfsidl nfsio 26009 290335 0 0 3 0x14280 nfsidl nfsio 3749 400300 0 0 3 0x14280 nfsidl nfsio 97151 50345 0 0 3 0x14280 nfsidl nfsio 4458 141024 0 0 3 0x14280 nfsidl nfsio 84877 101662 0 0 3 0x14280 nfsidl nfsio 30352 307111 0 0 3 0x14280 nfsidl nfsio 37344 302938 0 0 3 0x14280 nfsidl nfsio 8825 430056 0 0 3 0x14280 nfsidl nfsio 26876 437280 0 0 3 0x14200 bored sosplice 82903 369629 72095 0 3 0x2 biowait syz-executor.0 72878 464005 72095 0 3 0x82 nanosleep syz-executor.1 72095 427693 36078 0 3 0x82 thrsleep syz-fuzzer 72095 59172 36078 0 3 0x4000082 nanosleep syz-fuzzer 72095 482215 36078 0 3 0x4000082 thrsleep syz-fuzzer 72095 159226 36078 0 3 0x4000082 thrsleep syz-fuzzer 72095 471197 36078 0 3 0x4000082 thrsleep syz-fuzzer 72095 71897 36078 0 3 0x4000082 kqread syz-fuzzer 36078 494406 99643 0 3 0x10008a pause ksh 99643 511541 49860 0 3 0x92 select sshd 49860 94544 1 0 3 0x80 select sshd 21618 60088 57080 73 3 0x100090 kqread syslogd 57080 346415 1 0 3 0x100082 netio syslogd 72962 392485 1 77 2 0x100090 dhclient 95959 517956 1 0 3 0x80 poll dhclient 33276 98761 0 0 3 0x14200 bored smr 7753 212833 0 0 2 0x14200 zerothread 39601 120366 0 0 3 0x14200 aiodoned aiodoned 85030 164440 0 0 3 0x14200 syncer update 55444 282202 0 0 3 0x14200 cleaner cleaner 81934 58215 0 0 3 0x14200 reaper reaper 50119 252822 0 0 3 0x14200 pgdaemon pagedaemon 59808 391082 0 0 3 0x14200 bored crynlk 663 328405 0 0 3 0x14200 bored crypto 14006 415994 0 0 3 0x40014200 acpi0 acpi0 53798 107387 0 0 3 0x14200 bored softnet 30501 22679 0 0 2 0x14200 systqmp 66181 270408 0 0 3 0x14200 bored systq 79716 389481 0 0 3 0x40014200 bored softclock 11791 255437 0 0 3 0x40014200 idle0 1 150839 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 9540 6624K 7010K 78643K 12431 0 pcb 13 8K 8K 78643K 247 0 rtable 118 9K 13K 78643K 630 0 ifaddr 105 21K 21K 78643K 254 0 sysctl 2 0K 0K 78643K 2 0 counters 21 16K 16K 78643K 37 0 ioctlops 0 0K 4K 78643K 1031 0 iov 0 0K 32K 78643K 142 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1762 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 14 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 180 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 1251 0 sigio 0 0K 0K 78643K 11 0 proc 51 38K 55K 78643K 449 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 2044 0 in_multi 92 4K 4K 78643K 279 0 ether_multi 1 0K 0K 78643K 25 0 mrt 5 0K 0K 78643K 15 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 262 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 131 23K 39K 78643K 3710 0 UVM aobj 30 4K 4K 78643K 44 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 119 0 NDP 14 0K 0K 78643K 58 0 temp 142 3870K 3944K 78643K 24379 0 kqueue 3 4K 12K 78643K 38 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 9 0 5 1 0 1 1 0 8 0 rtpcb 88 51 0 49 1 0 1 1 0 8 0 rtentry 112 108 0 74 2 0 2 2 0 8 0 unpcb 120 581 0 572 1 0 1 1 0 8 0 syncache 272 8 0 8 3 3 0 1 0 8 0 tcpqe 32 170 0 170 1 1 0 1 0 8 0 tcpcb 592 302 0 294 4 2 2 2 0 8 0 ipq 40 2 0 1 2 1 1 1 0 8 0 ipqe 40 47 0 46 2 1 1 1 0 8 0 inpcb 296 2045 0 2035 4 2 2 2 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 41 0 39 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1136 5 0 5 3 3 0 1 0 8 0 pfrktable 1344 66 0 55 4 3 1 2 0 8 0 pftag 88 13 0 10 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 4 0 2 1 0 1 1 0 8 0 pfstate 328 2 0 1 1 0 1 1 0 8 0 pfrule 1360 34 0 16 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 875 0 679 20 5 15 16 0 8 1 art_table 32 877 0 679 2 0 2 2 0 8 0 art_node 16 107 0 74 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 17 1 0 1 1 0 8 0 semapl 112 176 0 166 1 0 1 1 0 8 0 shmpl 112 41 0 14 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3035 0 1636 88 0 88 88 0 8 0 ffsino 240 3035 0 1636 83 0 83 83 0 8 0 nchpl 144 5045 0 3451 60 0 60 60 0 8 0 uvmvnodes 72 3505 0 0 64 0 64 64 0 8 0 vnodes 208 3505 0 0 185 0 185 185 0 8 0 namei 1024 14823 0 14823 1 0 1 1 0 8 1 vmpool 528 6 0 6 2 2 0 1 0 8 0 pfiaddrpl 120 24 0 16 1 0 1 1 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 200 15003 0 15002 1 0 1 1 0 8 0 plimitpl 152 85 0 78 1 0 1 1 0 8 0 sigapl 424 1459 0 1410 6 0 6 6 0 8 0 futexpl 56 24838 0 24838 1 0 1 1 0 8 1 knotepl 112 98 0 78 1 0 1 1 0 8 0 kqueuepl 152 412 0 409 1 0 1 1 0 8 0 pipepl 272 182 0 171 4 3 1 2 0 8 0 fdescpl 432 1424 0 1410 2 0 2 2 0 8 0 filepl 120 9344 0 9243 4 0 4 4 0 8 0 lockfpl 104 222 0 221 1 0 1 1 0 8 0 lockfspl 48 81 0 80 1 0 1 1 0 8 0 sessionpl 120 18 0 8 1 0 1 1 0 8 0 pgrppl 48 24 0 14 1 0 1 1 0 8 0 ucredpl 96 1167 0 1160 1 0 1 1 0 8 0 zombiepl 144 1410 0 1410 1 0 1 1 0 8 1 processpl 944 1459 0 1410 7 0 7 7 0 8 0 procpl 632 2992 0 2937 5 0 5 5 0 8 0 sosppl 144 18 0 18 3 2 1 1 0 8 1 sockpl 400 2684 0 2663 7 4 3 4 0 8 0 mcl64k 65536 43 0 43 4 3 1 1 0 8 1 mcl16k 16384 4 0 4 3 3 0 1 0 8 0 mcl12k 12288 22 0 22 5 4 1 1 0 8 1 mcl9k 9216 22 0 22 4 3 1 1 0 8 1 mcl8k 8192 19 0 19 3 3 0 1 0 8 0 mcl4k 4096 77 0 77 4 3 1 1 0 8 1 mcl2k2 2112 3 0 3 2 1 1 1 0 8 1 mcl2k 2048 92043 0 91988 23 15 8 19 0 8 0 mtagpl 96 209 0 135 6 1 5 5 0 8 1 mbufpl 256 153660 0 153263 53 9 44 44 0 8 1 bufpl 280 6917 0 1563 383 0 383 383 0 8 0 anonpl 16 140428 0 121985 98 15 83 91 0 107 0 amapchunkpl 152 6758 0 6564 38 16 22 22 0 158 14 amappl16 192 6688 0 5603 73 17 56 67 0 8 1 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 1 0 0 1 0 1 1 0 8 0 amappl13 168 27 0 24 1 0 1 1 0 8 0 amappl12 160 36 0 28 1 0 1 1 0 8 0 amappl11 152 676 0 665 1 0 1 1 0 8 0 amappl10 144 10 0 8 1 0 1 1 0 8 0 amappl9 136 953 0 950 1 0 1 1 0 8 0 amappl8 128 314 0 283 2 0 2 2 0 8 0 amappl7 120 103 0 92 1 0 1 1 0 8 0 amappl6 112 651 0 645 1 0 1 1 0 8 0 amappl5 104 1354 0 1340 1 0 1 1 0 8 0 amappl4 96 440 0 413 1 0 1 1 0 8 0 amappl3 88 161 0 152 1 0 1 1 0 8 0 amappl2 80 10565 0 10499 2 0 2 2 0 8 0 amappl1 72 41113 0 40695 21 12 9 17 0 8 0 amappl 80 3227 0 3172 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 43 0 14 1 0 1 1 0 8 0 uaddrrnd 24 1430 0 1416 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1430 0 1416 1 0 1 1 0 8 0 vmmpekpl 168 11340 0 11315 2 0 2 2 0 8 0 vmmpepl 168 178162 0 175969 132 29 103 115 0 357 4 vmsppl 272 1429 0 1416 3 2 1 2 0 8 0 pdppl 4096 2866 0 2832 6 1 5 6 0 8 0 pvpl 32 442852 0 421268 331 44 287 315 0 265 95 pmappl 200 1429 0 1416 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 314 0 56 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b3f600) 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:1771 ifioctl(fffffd8065d3b190,8020699f,ffff80001d791470,ffff80001d6be508) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6be508,ffff80001d791588,ffff80001d7915d0) at sys_ioctl+0x4a1 syscall(ffff80001d791650) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4ac32c7330, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b3f600) 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:1771 ifioctl(fffffd8065d3b190,8020699f,ffff80001d791470,ffff80001d6be508) at ifioctl+0x169d sys/net/if.c:2031 sys_ioctl(ffff80001d6be508,ffff80001d791588,ffff80001d7915d0) at sys_ioctl+0x4a1 syscall(ffff80001d791650) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa4ac32c7330, count: -8