login: uvm_fault(0xfffffd807f000730, 0x1000b, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f000730, 0x1000b, 0, 1) -> e in_delmulti(ffff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800020b79290, count: 0 ddb{0}> trace in_delmulti(ffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff8000009d1300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009ce000) at in_ifdetach+0x74 sys/netinet/in.c:969 if_detach(ffff8000009ce000) at if_detach+0x140 sys/net/if.c:1150 tun_clone_destroy(ffff8000009ce000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020b79470) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806e300348,7,fffffd807f7beae0,ffff800020ae7d58) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd806d0c0db8,ffff800020ae7d58) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806d0c0db8,ffff800020ae7d58) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:610 fdrop(fffffd806d0c0db8,ffff800020ae7d58) at fdrop+0xc2 sys/kern/kern_descrip.c:1264 closef(fffffd806d0c0db8,ffff800020ae7d58) at closef+0x11c sys/kern/kern_descrip.c:1248 fdfree(ffff800020ae7d58) at fdfree+0x101 sys/kern/kern_descrip.c:1180 exit1(ffff800020ae7d58,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020ae7d58,ffff800020b79700,ffff800020b79750) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800020b797d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020b797d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcc850, count: -16 ddb{0}> show registers rdi 0x2 rsi 0 rbp 0xffff800020b79240 rbx 0 rdx 0x8b rcx 0x1 rax 0x1 r8 0xffffffff821a1fe3 rt_ifa_purge+0x153 r9 0x5 r10 0xe90f91ee4b6f0f90 r11 0x8f6b83aa83db6dee r12 0 r13 0x3 r14 0xffff __ALIGN_SIZE+0xefff r15 0x1 rip 0xffffffff820f457d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b791e0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{0}> show proc PROC (syz-executor.0) pid=178184 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=53, nice=20 forw=0xffffffffffffffff, list=0xffff800020a7c9c8,0xffff800020ae73a8 process=0xffff800020a90b50 user=0xffff800020b74000, vmspace=0xfffffd807f000730 estcpu=3, cpticks=0, pctcpu=0.3 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21171 313519 18290 0 2 0x100002 ndp 18290 156262 23673 0 3 0x10008a pause sh 23673 364804 49349 0 3 0x82 wait syz-executor.0 49349 222580 66043 0 3 0x82 thrsleep syz-execprog 49349 411041 66043 0 3 0x4000082 thrsleep syz-execprog 49349 402483 66043 0 3 0x4000082 thrsleep syz-execprog 49349 439586 66043 0 3 0x4000082 thrsleep syz-execprog 49349 71116 66043 0 3 0x4000082 thrsleep syz-execprog 49349 359141 66043 0 3 0x4000082 thrsleep syz-execprog 49349 128347 66043 0 3 0x4000082 thrsleep syz-execprog 49349 171942 66043 0 3 0x4000082 thrsleep syz-execprog 49349 53395 66043 0 7 0x4000003 syz-execprog 66043 183316 48251 0 3 0x10008a pause ksh 48251 446778 10043 0 3 0x92 select sshd 61906 389445 1 0 3 0x100083 ttyin getty 10043 362019 1 0 3 0x80 select sshd 86434 515909 85492 74 3 0x100092 bpf pflogd 85492 202203 1 0 3 0x80 netio pflogd 40073 1913 88337 73 3 0x100090 kqread syslogd 88337 348167 1 0 3 0x100082 netio syslogd 45010 6893 1 77 3 0x100090 poll dhclient 89792 295993 1 0 3 0x80 poll dhclient 38334 261666 0 0 3 0x14200 pgzero zerothread 54992 450616 0 0 3 0x14200 aiodoned aiodoned 7565 107747 0 0 3 0x14200 syncer update 71587 63415 0 0 3 0x14200 cleaner cleaner 18046 65635 0 0 3 0x14200 reaper reaper 44839 252724 0 0 3 0x14200 pgdaemon pagedaemon 30707 237751 0 0 3 0x14200 bored crynlk 12963 64960 0 0 3 0x14200 bored crypto 64413 207740 0 0 3 0x40014200 acpi0 acpi0 55460 340835 0 0 3 0x40014200 idle1 84907 2968 0 0 3 0x14200 bored softnet 86704 425742 0 0 2 0x14200 systqmp 85321 449185 0 0 3 0x14200 bored systq 6555 220415 0 0 3 0x40014200 bored softclock 74748 177645 0 0 3 0x40014200 idle0 40568 9028 0 0 3 0x14200 bored smr 1 173122 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9463 6395K 6395K 78643K 10556 0 pcb 13 8K 8K 78643K 13 0 rtable 73 2K 2K 78643K 181 0 ifaddr 37 9K 9K 78643K 40 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1469 0 mount 1 1K 1K 78643K 1 0 vnodes 1181 74K 74K 78643K 1186 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 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 16K 16K 78643K 93 0 proc 59 63K 83K 78643K 438 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 27 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 210 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 95 21K 21K 78643K 1142 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 5 0K 0K 78643K 7 0 temp 29 3005K 3069K 78643K 4415 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 16 1 0 1 1 0 8 0 rtentry 112 38 0 10 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 1 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 98 0 92 1 0 1 1 0 8 0 nd6 48 2 0 1 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 10 0 0 1 0 1 1 0 8 0 pfstkey 112 10 0 0 1 0 1 1 0 8 0 pfstate 328 10 0 0 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 175 0 23 11 0 11 11 0 8 0 art_table 32 176 0 23 2 0 2 2 0 8 0 art_node 16 37 0 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1545 0 140 46 0 46 46 0 8 0 ffsino 272 1545 0 140 94 0 94 94 0 8 0 nchpl 144 1897 0 297 60 0 60 60 0 8 0 uvmvnodes 72 1555 0 0 29 0 29 29 0 8 0 vnodes 208 1555 0 0 82 0 82 82 0 8 0 namei 1024 4745 0 4745 1 0 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 9171 0 9171 2 1 1 2 0 8 1 plimitpl 152 16 0 8 1 0 1 1 0 8 0 sigapl 432 297 0 281 2 0 2 2 0 8 0 futexpl 56 430 0 430 1 0 1 1 0 8 1 knotepl 112 51 0 38 1 0 1 1 0 8 0 kqueuepl 104 63 0 61 1 0 1 1 0 8 0 pipelkpl 48 78 0 71 1 0 1 1 0 8 0 pipepl 120 156 0 143 1 0 1 1 0 8 0 fdescpl 496 298 0 281 3 0 3 3 0 8 0 filepl 152 1407 0 1347 3 0 3 3 0 8 0 lockfpl 104 127 0 126 1 0 1 1 0 8 0 lockfspl 48 63 0 62 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 282 0 281 1 0 1 1 0 8 0 processpl 960 313 0 281 5 0 5 5 0 8 0 procpl 624 382 0 342 4 0 4 4 0 8 0 sockpl 400 146 0 127 3 0 3 3 0 8 1 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 64 0 0 8 0 8 8 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 123 0 0 8 0 8 8 0 8 0 bufpl 280 7999 0 1707 450 0 450 450 0 8 0 anonpl 16 46086 0 39847 27 1 26 26 0 125 0 amapchunkpl 152 1206 0 1080 6 0 6 6 0 158 0 amappl16 192 1583 0 1307 14 0 14 14 0 8 0 amappl15 184 60 0 56 1 0 1 1 0 8 0 amappl14 176 97 0 90 1 0 1 1 0 8 0 amappl13 168 2 0 1 1 0 1 1 0 8 0 amappl12 160 8 0 6 1 0 1 1 0 8 0 amappl11 152 55 0 37 1 0 1 1 0 8 0 amappl10 144 15 0 11 1 0 1 1 0 8 0 amappl9 136 449 0 445 1 0 1 1 0 8 0 amappl8 128 101 0 90 1 0 1 1 0 8 0 amappl7 120 105 0 91 1 0 1 1 0 8 0 amappl6 112 58 0 53 1 0 1 1 0 8 0 amappl5 104 132 0 116 1 0 1 1 0 8 0 amappl4 96 564 0 538 1 0 1 1 0 8 0 amappl3 88 122 0 115 1 0 1 1 0 8 0 amappl2 80 1458 0 1383 3 0 3 3 0 8 1 amappl1 72 16731 0 16208 27 9 18 21 0 8 8 amappl 80 624 0 587 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 24 298 0 281 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 298 0 281 1 0 1 1 0 8 0 vmmpekpl 168 6639 0 6611 2 0 2 2 0 8 0 vmmpepl 168 39902 0 38508 88 6 82 82 0 357 21 vmsppl 368 297 0 281 2 0 2 2 0 8 0 pdppl 4096 603 0 562 6 0 6 6 0 8 0 pvpl 32 143870 0 134909 115 0 115 115 0 265 42 pmappl 232 297 0 281 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 147 0 3 5 0 5 5 0 8 0 ddb{0}>