oLoLkernel: protection fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace in_delmulti(bfffbfffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000a75000) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009c1000) at in_ifdetach+0x74 sys/netinet/in.c:969 if_detach(ffff8000009c1000) at if_detach+0x140 sys/net/if.c:1151 tun_clone_destroy(ffff8000009c1000) at tun_clone_destroy+0x179 sys/net/if_tun.c:312 spec_close(ffff800020b4ec30) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806eb9c278,7,fffffd807f7c6720,ffff800020ac0290) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd8077a4ac78,ffff800020ac0290) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8077a4ac78,ffff800020ac0290) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:610 fdrop(fffffd8077a4ac78,ffff800020ac0290) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd8077a4ac78,ffff800020ac0290) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020ac0290) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020ac0290,19,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff800020ac0290,19) at postsig+0x4e3 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff800020ac0290,19) at postsig+0x4e3 sys/kern/kern_sig.c:1431 userret(ffff800020ac0290) at userret+0x199 sys/kern/kern_sig.c:1889 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffff4560, count: -15 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800020b4ea60 rbx 0 rdx 0xffff800020ac0290 rcx 0 rax 0 r8 0xffffffff81342423 rt_ifa_purge+0x153 r9 0x5 r10 0x2f r11 0x92b56a30b1e9d974 r12 0 r13 0x3 r14 0xbfffbfffffffffff r15 0x1 rip 0xffffffff81eee24d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b4ea00 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=244753 stat=onproc flags process=a proc=2000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac0508,0xffff800020a6e290 process=0xffff800020aec380 user=0xffff800020b4a000, vmspace=0xfffffd806e7accf8 estcpu=36, cpticks=1, pctcpu=0.16 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24949 506080 57856 0 2 0 syz-executor.0 57856 192717 6676 0 7 0x2 syz-executor.0 80423 180480 0 0 3 0x14200 bored sosplice 6676 520269 93520 0 3 0x82 thrsleep syz-fuzzer 6676 503752 93520 0 3 0x4000082 nanosleep syz-fuzzer 6676 493715 93520 0 3 0x4000082 thrsleep syz-fuzzer 6676 472962 93520 0 3 0x4000082 thrsleep syz-fuzzer 6676 100373 93520 0 3 0x4000082 thrsleep syz-fuzzer 6676 292097 93520 0 3 0x4000082 thrsleep syz-fuzzer 6676 442519 93520 0 3 0x4000082 nanosleep syz-fuzzer 6676 205319 93520 0 3 0x4000082 thrsleep syz-fuzzer 6676 67727 93520 0 2 0x4000082 syz-fuzzer 6676 162636 93520 0 3 0x4000082 thrsleep syz-fuzzer 93520 438329 39182 0 3 0x10008a pause ksh 39182 60770 73837 0 3 0x92 select sshd 67755 360631 1 0 3 0x100083 ttyin getty 73837 388163 1 0 3 0x80 select sshd 79357 333660 39079 74 3 0x100092 bpf pflogd 39079 228814 1 0 3 0x80 netio pflogd 38768 184321 38777 73 3 0x100090 kqread syslogd 38777 480740 1 0 3 0x100082 netio syslogd 84541 37450 1 77 2 0x100090 dhclient 3009 149064 1 0 3 0x80 poll dhclient 40554 353868 0 0 2 0x14200 zerothread 38320 70877 0 0 3 0x14200 aiodoned aiodoned 31166 35437 0 0 3 0x14200 syncer update 74143 271896 0 0 3 0x14200 cleaner cleaner 29834 356390 0 0 3 0x14200 reaper reaper 66666 200884 0 0 3 0x14200 pgdaemon pagedaemon 24603 516972 0 0 3 0x14200 bored crynlk 46804 70037 0 0 3 0x14200 bored crypto 13384 111710 0 0 3 0x40014200 acpi0 acpi0 8977 396338 0 0 3 0x40014200 idle1 94420 115392 0 0 2 0x14200 softnet 34172 445625 0 0 2 0x14200 systqmp 42864 240173 0 0 3 0x14200 bored systq 36739 374481 0 0 3 0x40014200 bored softclock 56385 521066 0 0 3 0x40014200 idle0 28837 519522 0 0 3 0x14200 bored smr 1 259138 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9536 6425K 6927K 78643K 11544 0 pcb 13 8K 8K 78643K 108 0 rtable 91 4K 4K 78643K 419 0 ifaddr 80 14K 14K 78643K 162 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1514 0 iov 0 0K 20K 78643K 92 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1545 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 166 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 379 0 sigio 0 0K 0K 78643K 14 0 proc 60 63K 95K 78643K 567 0 subproc 23 1K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 60 0 in_multi 46 2K 2K 78643K 104 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 19 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 48 212K 212K 78643K 48 0 exec 0 0K 1K 78643K 282 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 136 88K 88K 78643K 2325 0 UVM aobj 29 4K 4K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 53 0 NDP 15 0K 0K 78643K 36 0 temp 149 3023K 3093K 78643K 27087 0 kqueue 0 0K 0K 78643K 6 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 10 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 77 0 43 2 0 2 2 0 8 0 unpcb 120 239 0 229 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 113 0 113 1 1 0 1 0 8 0 tcpcb 544 139 0 135 1 0 1 1 0 8 0 inpcb 280 1050 0 1043 5 2 3 3 0 8 2 rttmr 72 8 0 8 2 1 1 1 0 8 1 nd6 48 9 0 6 1 0 1 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 8 0 8 2 2 0 1 0 8 0 pffrag 232 15 0 15 1 0 1 1 0 482 1 pffrnode 88 15 0 15 1 0 1 1 0 8 1 pffrent 40 417 0 417 1 0 1 1 0 8 1 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 48 0 10 1 0 1 1 0 8 0 pfstkey 112 48 0 10 2 0 2 2 0 8 0 pfstate 328 48 0 10 4 0 4 4 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 256 347 0 133 14 0 14 14 0 8 0 art_table 32 348 0 133 2 0 2 2 0 8 0 art_node 16 76 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 25 0 15 1 0 1 1 0 8 0 semupl 112 9 0 9 1 1 0 1 0 8 0 semapl 112 164 0 154 1 0 1 1 0 8 0 shmpl 112 27 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1978 0 569 46 0 46 46 0 8 0 ffsino 272 1978 0 569 95 0 95 95 0 8 0 nchpl 144 2738 0 1128 61 0 61 61 0 8 0 uvmvnodes 72 2263 0 0 42 0 42 42 0 8 0 vnodes 208 2263 0 0 120 0 120 120 0 8 0 namei 1024 8084 0 8084 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 560 10 0 2 1 0 1 1 0 8 0 scxspl 192 8137 0 8137 10 7 3 7 0 8 3 plimitpl 152 45 0 37 1 0 1 1 0 8 0 sigapl 432 572 0 557 3 1 2 3 0 8 0 futexpl 56 9045 0 9045 1 0 1 1 0 8 1 knotepl 112 110 0 91 1 0 1 1 0 8 0 kqueuepl 104 114 0 112 1 0 1 1 0 8 0 pipepl 160 434 0 416 2 0 2 2 0 8 1 fdescpl 488 573 0 557 3 0 3 3 0 8 0 filepl 152 4585 0 4495 9 2 7 7 0 8 3 lockfpl 104 162 0 161 1 0 1 1 0 8 0 lockfspl 48 48 0 47 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 309 0 300 1 0 1 1 0 8 0 zombiepl 144 558 0 557 1 0 1 1 0 8 0 processpl 896 589 0 557 4 0 4 4 0 8 0 procpl 632 1413 0 1372 5 0 5 5 0 8 1 srpgc 64 8 0 6 2 1 1 1 0 8 0 sosppl 128 4 0 4 2 1 1 1 0 8 1 sockpl 384 1340 0 1321 10 3 7 7 0 8 5 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 162 0 0 20 0 20 20 0 8 0 mtagpl 80 21 0 0 1 0 1 1 0 8 0 mbufpl 256 480 0 0 30 0 30 30 0 8 0 bufpl 280 7505 0 1348 440 0 440 440 0 8 0 anonpl 16 80119 0 60139 89 1 88 88 0 125 5 amapchunkpl 152 4020 0 3849 15 3 12 12 0 158 2 amappl16 192 2742 0 1616 59 1 58 59 0 8 1 amappl15 184 63 0 58 1 0 1 1 0 8 0 amappl14 176 105 0 101 1 0 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 101 0 100 2 1 1 1 0 8 0 amappl11 152 236 0 218 1 0 1 1 0 8 0 amappl10 144 23 0 17 1 0 1 1 0 8 0 amappl9 136 629 0 626 1 0 1 1 0 8 0 amappl8 128 159 0 127 2 0 2 2 0 8 0 amappl7 120 119 0 104 1 0 1 1 0 8 0 amappl6 112 224 0 217 1 0 1 1 0 8 0 amappl5 104 249 0 234 1 0 1 1 0 8 0 amappl4 96 837 0 807 1 0 1 1 0 8 0 amappl3 88 131 0 124 1 0 1 1 0 8 0 amappl2 80 3564 0 3496 3 1 2 3 0 8 0 amappl1 72 22756 0 22326 25 15 10 20 0 8 0 amappl 80 1719 0 1670 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 28 0 0 1 0 1 1 0 8 0 uaddrrnd 24 583 0 559 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 583 0 559 1 0 1 1 0 8 0 vmmpekpl 168 8890 0 8854 3 1 2 2 0 8 0 vmmpepl 168 79539 0 77249 158 12 146 146 0 357 38 vmsppl 368 582 0 559 3 0 3 3 0 8 0 pdppl 4096 1173 0 1126 7 0 7 7 0 8 0 pvpl 32 240581 0 217721 213 6 207 207 0 265 15 pmappl 232 582 0 559 3 1 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 186 0 3 6 0 6 6 0 8 0