login: uvm_fault(0xfffffd806bc0a330, 0x10000000a, 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(0xfffffd806bc0a330, 0x10000000a, 0, 1) -> e in_delmulti(fffffffe) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff80001d416750, count: 0 ddb> trace in_delmulti(fffffffe) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff8000009c6b00) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009f0800) at in_ifdetach+0x74 sys/netinet/in.c:969 if_detach(ffff8000009f0800) at if_detach+0x140 sys/net/if.c:1150 tun_clone_destroy(ffff8000009f0800) at tun_clone_destroy+0x1d8 sys/net/if_tun.c:329 ifioctl(fffffd805da89af8,80206979,ffff80001d416920,ffff80001d349008) at ifioctl+0x3de sys/net/if.c:1937 sys_ioctl(ffff80001d349008,ffff80001d416a38,ffff80001d416a80) at sys_ioctl+0x4a1 syscall(ffff80001d416b00) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeef40, count: -9 ddb> show registers rdi 0x2 rsi 0 rbp 0xffff80001d416700 rbx 0 rdx 0x3 rcx 0x1 rax 0x1 r8 0xffff8000009c6b00 r9 0x5 r10 0x2c0ce0a641a1e723 r11 0x7638bcb121959cfc r12 0 r13 0x3 r14 0xfffffffe r15 0x1 rip 0xffffffff8173537d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d4166a0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> show proc PROC (syz-executor.0) pid=460630 stat=onproc flags process=0 proc=0 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d34a388,0xffffffff82588988 process=0xffff80001d39ee00 user=0xffff80001d411000, vmspace=0xfffffd806bc0a330 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *78356 460630 64524 0 7 0 syz-executor.0 64524 370718 97633 0 3 0x82 nanosleep syz-executor.0 97633 269684 74585 0 3 0x82 thrsleep syz-execprog 97633 122581 74585 0 3 0x4000082 thrsleep syz-execprog 97633 157405 74585 0 3 0x4000082 thrsleep syz-execprog 97633 193089 74585 0 3 0x4000082 thrsleep syz-execprog 97633 245247 74585 0 3 0x4000082 kqread syz-execprog 97633 455584 74585 0 3 0x4000082 thrsleep syz-execprog 97633 237360 74585 0 3 0x4000082 thrsleep syz-execprog 74585 278519 74997 0 3 0x10008a pause ksh 74997 402098 21359 0 3 0x92 select sshd 23810 304747 1 0 3 0x100083 ttyin getty 21359 344889 1 0 3 0x80 select sshd 5395 385325 94299 73 3 0x100090 kqread syslogd 94299 335194 1 0 3 0x100082 netio syslogd 88724 14311 1 77 2 0x100090 dhclient 25772 362221 1 0 3 0x80 poll dhclient 11206 210187 0 0 3 0x14200 pgzero zerothread 9576 389836 0 0 3 0x14200 aiodoned aiodoned 82615 368494 0 0 3 0x14200 syncer update 79556 503935 0 0 3 0x14200 cleaner cleaner 86958 120426 0 0 3 0x14200 reaper reaper 74910 475417 0 0 3 0x14200 pgdaemon pagedaemon 50509 130772 0 0 3 0x14200 bored crynlk 20930 295392 0 0 3 0x14200 bored crypto 84616 128654 0 0 3 0x40014200 acpi0 acpi0 2904 487074 0 0 3 0x14200 bored softnet 17777 449988 0 0 2 0x14200 systqmp 85328 318292 0 0 3 0x14200 bored systq 23394 522951 0 0 3 0x40014200 bored softclock 39803 254304 0 0 3 0x40014200 idle0 99755 168162 0 0 3 0x14200 bored smr 1 309908 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 9440 6321K 6321K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 75 2K 2K 78643K 155 0 ifaddr 32 8K 9K 78643K 33 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1179 74K 74K 78643K 1185 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 3 8K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 25 1K 1K 78643K 26 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 171 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 74 11K 12K 78643K 860 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 23 3001K 3065K 78643K 1687 0 kqueue 3 4K 4K 78643K 3 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 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 5 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 28 0 20 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1415 0 20 46 0 46 46 0 8 0 ffsino 240 1415 0 20 83 0 83 83 0 8 0 nchpl 144 1640 0 35 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3862 0 3862 1 0 1 1 0 8 1 scxspl 192 4328 0 4328 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 185 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 67 0 60 1 0 1 1 0 8 0 pipepl 120 134 0 121 1 0 1 1 0 8 0 fdescpl 432 198 0 185 2 0 2 2 0 8 0 filepl 120 998 0 943 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 185 0 185 1 0 1 1 0 8 1 processpl 896 212 0 185 4 0 4 4 0 8 0 procpl 624 218 0 185 3 0 3 3 0 8 0 sockpl 400 72 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5504 0 5469 8 3 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9553 0 9501 7 1 6 6 0 8 2 bufpl 280 3713 0 178 253 0 253 253 0 8 0 anonpl 16 20542 0 19036 14 1 13 13 0 107 6 amapchunkpl 152 688 0 626 5 0 5 5 0 158 1 amappl16 192 86 0 60 2 0 2 2 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 20 0 18 1 0 1 1 0 8 0 amappl12 160 26 0 21 1 0 1 1 0 8 0 amappl11 152 47 0 35 1 0 1 1 0 8 0 amappl10 144 14 0 12 1 0 1 1 0 8 0 amappl9 136 399 0 397 1 0 1 1 0 8 0 amappl8 128 84 0 75 1 0 1 1 0 8 0 amappl7 120 85 0 75 1 0 1 1 0 8 0 amappl6 112 59 0 52 1 0 1 1 0 8 0 amappl5 104 125 0 116 1 0 1 1 0 8 0 amappl4 96 424 0 403 1 0 1 1 0 8 0 amappl3 88 124 0 117 1 0 1 1 0 8 0 amappl2 80 846 0 787 3 0 3 3 0 8 1 amappl1 72 13539 0 13125 26 8 18 20 0 8 8 amappl 80 419 0 393 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 185 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 185 1 0 1 1 0 8 0 vmmpekpl 168 6036 0 6018 1 0 1 1 0 8 0 vmmpepl 168 29537 0 28634 84 6 78 78 0 357 38 vmsppl 272 197 0 185 1 0 1 1 0 8 0 pdppl 4096 402 0 370 5 0 5 5 0 8 0 pvpl 32 103692 0 99877 114 0 114 114 0 265 82 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 129 0 6 4 0 4 4 0 8 0 ddb>