login: uvm_fault(0xfffffd807f0055c0, 0x40b, 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(0xfffffd807f0055c0, 0x40b, 0, 1) -> e in_delmulti(3ff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800020b71350, count: 0 ddb{0}> trace in_delmulti(3ff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000a13e00) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff8000009e8000) at in_ifdetach+0x74 sys/netinet/in.c:969 if_detach(ffff8000009e8000) at if_detach+0x140 sys/net/if.c:1151 tun_clone_destroy(ffff8000009e8000) at tun_clone_destroy+0x179 sys/net/if_tun.c:312 spec_close(ffff800020b714d0) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806ebd3418,7,fffffd807f7c6900,ffff800020a98018) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd806ce78730,ffff800020a98018) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806ce78730,ffff800020a98018) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:610 fdrop(fffffd806ce78730,ffff800020a98018) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd806ce78730,ffff800020a98018) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020a98018) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020a98018,0,9,1) at exit1+0x33f sys/kern/kern_exit.c:196 postsig(ffff800020a98018,9) at postsig+0x4e5 sigexit sys/kern/kern_sig.c:1498 [inline] postsig(ffff800020a98018,9) at postsig+0x4e5 sys/kern/kern_sig.c:1430 userret(ffff800020a98018) at userret+0x199 sys/kern/kern_sig.c:1888 syscall(ffff800020b71950) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:115 [inline] syscall(ffff800020b71950) at syscall+0x55f sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc8040, count: -16 ddb{0}> show registers rdi 0x2 rsi 0 rbp 0xffff800020b71300 rbx 0 rdx 0x8b rcx 0x1 rax 0x1 r8 0xffffffff81e71f73 rt_ifa_purge+0x153 r9 0x5 r10 0x287756c7fc6f7e96 r11 0x6a23e0ce41266c00 r12 0 r13 0x3 r14 0x3ff r15 0x1 rip 0xffffffff819319dd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b712a0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{0}> show proc PROC (syz-executor.0) pid=287680 stat=onproc flags process=a proc=2000 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020a98290,0xffffffff82644068 process=0xffff800020aece38 user=0xffff800020b6c000, vmspace=0xfffffd807f0055c0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99071 104726 58375 0 3 0x82 thrsleep syz-execprog 99071 59427 58375 0 3 0x4000082 nanosleep syz-execprog 99071 172179 58375 0 3 0x4000082 thrsleep syz-execprog 99071 361571 58375 0 3 0x4000082 thrsleep syz-execprog 99071 523717 58375 0 3 0x4000082 thrsleep syz-execprog 99071 314251 58375 0 3 0x4000082 wait syz-execprog 99071 71180 58375 0 3 0x4000082 nanosleep syz-execprog 99071 209805 58375 0 3 0x4000082 thrsleep syz-execprog 58375 60049 78820 0 3 0x10008a pause ksh 78820 159742 59502 0 3 0x92 select sshd 95892 435246 1 0 3 0x100083 ttyin getty 59502 188869 1 0 3 0x80 select sshd 99063 76491 98424 74 3 0x100092 bpf pflogd 98424 356016 1 0 3 0x80 netio pflogd 63079 371000 84096 73 3 0x100090 kqread syslogd 84096 368965 1 0 3 0x100082 netio syslogd 42232 1268 1 77 2 0x100090 dhclient 71598 495789 1 0 3 0x80 poll dhclient 66137 369469 0 0 3 0x14200 pgzero zerothread 50691 110111 0 0 3 0x14200 aiodoned aiodoned 30287 472948 0 0 3 0x14200 syncer update 79074 513020 0 0 3 0x14200 cleaner cleaner 49167 196596 0 0 3 0x14200 reaper reaper 37303 177393 0 0 3 0x14200 pgdaemon pagedaemon 50080 436249 0 0 3 0x14200 bored crynlk 93223 189667 0 0 3 0x14200 bored crypto 75004 171470 0 0 3 0x14200 bored viomb 17970 421820 0 0 3 0x40014200 acpi0 acpi0 60083 35474 0 0 3 0x40014200 idle1 95060 355283 0 0 7 0x14200 softnet 19426 241030 0 0 2 0x14200 systqmp 52786 417450 0 0 3 0x14200 bored systq 48326 103409 0 0 3 0x40014200 bored softclock 81559 56100 0 0 3 0x40014200 idle0 36019 370153 0 0 3 0x14200 bored smr 1 435491 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 95060 (softnet) thread 0xffff800020a20000 (355283) shared rwlock softnet r = 0 (0xffff8000000230e0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 taskq_thread+0x8f sys/kern/kern_task.c:367 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9472 6404K 6404K 78643K 10564 0 pcb 13 8K 8K 78643K 13 0 rtable 75 2K 2K 78643K 165 0 ifaddr 37 9K 9K 78643K 39 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1468 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 1810 197K 290K 78643K 12817 0 file desc 2 4K 12K 78643K 18 0 proc 59 63K 83K 78643K 398 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 18 79K 79K 78643K 18 0 exec 0 0K 1K 78643K 197 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 80 12K 12K 78643K 974 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 7 0K 0K 78643K 7 0 temp 33 3018K 3082K 78643K 3328 0 kqueue 0 0K 0K 78643K 1 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 4 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 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 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 11 0 8 1 0 1 1 0 8 0 inpcb 280 36 0 30 1 0 1 1 0 8 0 nd6 48 2 0 0 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 11 0 7 2 1 1 1 0 8 0 pfstkey 112 11 0 7 2 1 1 1 0 8 0 pfstate 328 11 0 7 2 1 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 256 168 0 0 11 0 11 11 0 8 0 art_table 32 169 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 1425 0 21 46 0 46 46 0 8 0 ffsino 272 1425 0 21 94 0 94 94 0 8 0 nchpl 144 1652 0 43 60 0 60 60 0 8 0 uvmvnodes 72 1435 0 0 27 0 27 27 0 8 0 vnodes 208 1435 0 0 76 0 76 76 0 8 0 namei 1024 4163 0 4163 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4302 0 4302 12 11 1 7 0 8 1 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 432 225 0 212 2 0 2 2 0 8 0 knotepl 112 40 0 29 1 0 1 1 0 8 0 kqueuepl 104 3 0 1 1 0 1 1 0 8 0 pipepl 160 148 0 136 2 1 1 1 0 8 0 fdescpl 488 226 0 212 3 0 3 3 0 8 0 filepl 152 1142 0 1085 3 0 3 3 0 8 0 lockfpl 104 7 0 6 1 0 1 1 0 8 0 lockfspl 48 4 0 3 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 213 0 212 2 1 1 1 0 8 0 processpl 904 242 0 212 4 0 4 4 0 8 0 procpl 632 249 0 212 4 0 4 4 0 8 0 srpgc 64 2 0 0 1 0 1 1 0 8 0 sockpl 384 82 0 64 3 0 3 3 0 8 1 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 62 0 0 8 0 8 8 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 105 0 0 6 0 6 6 0 8 0 bufpl 280 5946 0 1340 329 0 329 329 0 8 0 anonpl 16 22996 0 21250 15 1 14 14 0 125 6 amapchunkpl 152 899 0 834 5 0 5 5 0 158 2 amappl16 192 140 0 100 4 0 4 4 0 8 1 amappl15 184 59 0 55 1 0 1 1 0 8 0 amappl14 176 31 0 27 2 1 1 1 0 8 0 amappl12 160 2 0 2 1 1 0 1 0 8 0 amappl11 152 52 0 36 1 0 1 1 0 8 0 amappl10 144 16 0 13 1 0 1 1 0 8 0 amappl9 136 420 0 418 1 0 1 1 0 8 0 amappl8 128 92 0 83 1 0 1 1 0 8 0 amappl7 120 99 0 88 1 0 1 1 0 8 0 amappl6 112 59 0 54 1 0 1 1 0 8 0 amappl5 104 158 0 145 1 0 1 1 0 8 0 amappl4 96 494 0 466 1 0 1 1 0 8 0 amappl3 88 129 0 118 1 0 1 1 0 8 0 amappl2 80 962 0 900 4 1 3 3 0 8 1 amappl1 72 15268 0 14843 26 8 18 21 0 8 8 amappl 80 480 0 452 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 24 226 0 212 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 226 0 212 1 0 1 1 0 8 0 vmmpekpl 168 6268 0 6245 2 0 2 2 0 8 0 vmmpepl 168 33067 0 32110 93 11 82 82 0 357 38 vmsppl 368 225 0 212 2 0 2 2 0 8 0 pdppl 4096 459 0 424 6 0 6 6 0 8 1 pvpl 32 113204 0 109058 122 5 117 117 0 265 81 pmappl 232 225 0 212 1 0 1 1 0 8 0 extentpl 40 50 0 32 1 0 1 1 0 8 0 phpool 112 144 0 4 4 0 4 4 0 8 0