login: uvm_fault(0xfffffd807f000a10, 0x3fff7ee000b, 0, 1) -> e kernel: page 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 kernel page fault uvm_fault(0xfffffd807f000a10, 0x3fff7ee000b, 0, 1) -> e in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800020b74920, count: 0 ddb{1}> trace in_delmulti(3fff7edffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff8000009d1400) 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(ffff800020b74b00) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806e23a348,7,fffffd807f7bea80,ffff800020a7c008) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd806d0c4860,ffff800020a7c008) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806d0c4860,ffff800020a7c008) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:610 fdrop(fffffd806d0c4860,ffff800020a7c008) at fdrop+0xc2 sys/kern/kern_descrip.c:1274 closef(fffffd806d0c4860,ffff800020a7c008) at closef+0x11c sys/kern/kern_descrip.c:1258 fdfree(ffff800020a7c008) at fdfree+0x101 sys/kern/kern_descrip.c:1190 exit1(ffff800020a7c008,0,9,1) at exit1+0x344 sys/kern/kern_exit.c:196 postsig(ffff800020a7c008,9) at postsig+0x4e5 sigexit sys/kern/kern_sig.c:1476 [inline] postsig(ffff800020a7c008,9) at postsig+0x4e5 sys/kern/kern_sig.c:1408 userret(ffff800020a7c008) at userret+0x199 sys/kern/kern_sig.c:1860 syscall(ffff800020b74f80) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020b74f80) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3d10, count: -17 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800020b748d0 rbx 0 rdx 0x8b rcx 0x1 rax 0x1 r8 0xffffffff81449a03 rt_ifa_purge+0x153 r9 0x5 r10 0xf60e8f8e8dd7b51b r11 0xed8eab18585c54df r12 0 r13 0x3 r14 0x3fff7edffff r15 0x1 rip 0xffffffff81e0661d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b74870 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=146434 stat=onproc flags process=a proc=2000 pri=32, usrpri=58, nice=20 forw=0xffffffffffffffff, list=0xffff800020a7cc38,0xffff800020a7d608 process=0xffff800020a912d0 user=0xffff800020b70000, vmspace=0xfffffd807f000a10 estcpu=8, cpticks=2, pctcpu=0.1 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20332 296953 98163 0 3 0x82 thrsleep syz-execprog 20332 98240 98163 0 3 0x4000082 thrsleep syz-execprog 20332 24827 98163 0 3 0x4000082 thrsleep syz-execprog 20332 7830 98163 0 3 0x4000082 thrsleep syz-execprog 20332 28960 98163 0 3 0x4000082 thrsleep syz-execprog 20332 355227 98163 0 3 0x4000082 thrsleep syz-execprog 20332 164613 98163 0 3 0x4000082 kqread syz-execprog 20332 138124 98163 0 3 0x4000082 thrsleep syz-execprog 20332 82962 98163 0 3 0x4000082 wait syz-execprog 98163 408543 4510 0 3 0x10008a pause ksh 4510 337172 27336 0 3 0x92 select sshd 78741 444043 1 0 3 0x100083 ttyin getty 27336 376523 1 0 3 0x80 select sshd 98990 237450 26557 74 3 0x100092 bpf pflogd 26557 512105 1 0 3 0x80 netio pflogd 65302 213320 842 73 3 0x100090 kqread syslogd 842 320199 1 0 3 0x100082 netio syslogd 60221 399582 1 77 7 0x100090 dhclient 23567 519977 1 0 3 0x80 poll dhclient 38600 46257 0 0 3 0x14200 pgzero zerothread 73640 263434 0 0 3 0x14200 aiodoned aiodoned 24892 277707 0 0 3 0x14200 syncer update 59138 382837 0 0 3 0x14200 cleaner cleaner 40955 455092 0 0 3 0x14200 reaper reaper 68959 455938 0 0 3 0x14200 pgdaemon pagedaemon 5396 1957 0 0 3 0x14200 bored crynlk 95667 14118 0 0 3 0x14200 bored crypto 69139 377792 0 0 3 0x40014200 acpi0 acpi0 73333 454550 0 0 3 0x40014200 idle1 23903 500092 0 0 3 0x14200 bored softnet 26900 49850 0 0 2 0x14200 systqmp 36595 59835 0 0 3 0x14200 bored systq 97712 258689 0 0 3 0x40014200 bored softclock 25942 22872 0 0 3 0x40014200 idle0 94542 25910 0 0 3 0x14200 bored smr 1 454945 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 9463 6395K 6395K 78643K 10556 0 pcb 13 8K 8K 78643K 13 0 rtable 75 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 39 0 counters 41 33K 33K 78643K 41 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 1809 196K 290K 78643K 12766 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 19 95K 95K 78643K 19 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 83 12K 12K 78643K 975 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 29 3005K 3069K 78643K 2022 0 kqueue 3 4K 4K 78643K 3 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 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 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 34 0 28 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 0 1 0 1 1 0 8 0 pfstkey 112 11 0 0 1 0 1 1 0 8 0 pfstate 328 11 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 256 167 0 2 11 0 11 11 0 8 0 art_table 32 168 0 2 2 0 2 2 0 8 0 art_node 16 33 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1425 0 20 46 0 46 46 0 8 0 ffsino 272 1425 0 20 94 0 94 94 0 8 0 nchpl 144 1652 0 38 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 4159 0 4159 1 0 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 4482 0 4482 2 1 1 2 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 39 0 30 1 0 1 1 0 8 0 kqueuepl 104 3 0 1 1 0 1 1 0 8 0 pipelkpl 48 74 0 68 1 0 1 1 0 8 0 pipepl 120 148 0 137 1 0 1 1 0 8 0 fdescpl 496 226 0 212 3 0 3 3 0 8 0 filepl 152 1139 0 1083 3 0 3 3 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 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 1 0 1 1 0 8 0 processpl 960 241 0 212 5 0 5 5 0 8 1 procpl 624 249 0 212 4 0 4 4 0 8 1 sockpl 400 80 0 62 2 0 2 2 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 79 0 0 10 0 10 10 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 105 0 0 7 0 7 7 0 8 0 bufpl 280 3811 0 192 259 0 259 259 0 8 0 anonpl 16 26300 0 24647 25 1 24 24 0 125 17 amapchunkpl 152 767 0 698 5 0 5 5 0 158 2 amappl16 192 328 0 301 14 0 14 14 0 8 12 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 24 0 21 1 0 1 1 0 8 0 amappl12 160 9 0 7 1 0 1 1 0 8 0 amappl11 152 59 0 42 1 0 1 1 0 8 0 amappl10 144 13 0 9 1 0 1 1 0 8 0 amappl9 136 435 0 433 1 0 1 1 0 8 0 amappl8 128 92 0 81 1 0 1 1 0 8 0 amappl7 120 100 0 89 1 0 1 1 0 8 0 amappl6 112 57 0 53 1 0 1 1 0 8 0 amappl5 104 125 0 112 1 0 1 1 0 8 0 amappl4 96 493 0 465 1 0 1 1 0 8 0 amappl3 88 124 0 116 1 0 1 1 0 8 0 amappl2 80 961 0 895 3 0 3 3 0 8 1 amappl1 72 15211 0 14791 26 8 18 20 0 8 8 amappl 80 476 0 447 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 24 226 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 6250 0 6223 2 0 2 2 0 8 0 vmmpepl 168 33200 0 32251 90 9 81 81 0 357 37 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 116518 0 112447 116 0 116 116 0 265 81 pmappl 232 225 0 212 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{1}>