ukernel: 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(0xfffffd807efff450, 0x8c, 0, 1) -> e in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800023faa9e0, count: 0 ddb{1}> trace in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b41200) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000b21000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000b21000) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000b21000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800023faabc0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e3a2828,7,fffffd807f7bf7e0,ffff8000230e4ca0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80675ea9a0,ffff8000230e4ca0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80675ea9a0,ffff8000230e4ca0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80675ea9a0,ffff8000230e4ca0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80675ea9a0,ffff8000230e4ca0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff8000230e4ca0) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff8000230e4ca0,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff8000230e4ca0,ffff800023faae50,ffff800023faaea0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023faaf20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023faaf20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4ea0, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800023faa990 rbx 0 rdx 0 rcx 0 rax 0xffff8000230e4ca0 r8 0xffff800000b41200 r9 0xffffffff821cd043 rt_ifa_purge+0x153 r10 0x5 r11 0xbf7a39e13b46654f r12 0 r13 0x3 r14 0x80 r15 0x1 rip 0xffffffff821c82ed in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023faa930 ss 0 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=257197 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec7b68,0xffffffff828ed090 process=0xffff800020ed27e0 user=0xffff800023fa5000, vmspace=0xfffffd807efff450 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10763 450217 0 0 3 0x14280 nfsidl nfsio 43483 513248 0 0 3 0x14280 nfsidl nfsio 82322 81783 0 0 3 0x14280 nfsidl nfsio 86568 20484 0 0 3 0x14280 nfsidl nfsio 52930 314590 0 0 3 0x14280 nfsidl nfsio 99776 318279 0 0 3 0x14280 nfsidl nfsio 56461 113847 0 0 3 0x14280 nfsidl nfsio 64259 365721 0 0 3 0x14280 nfsidl nfsio 34124 252461 0 0 3 0x14280 nfsidl nfsio 65951 25308 0 0 3 0x14280 nfsidl nfsio 34884 388000 0 0 3 0x14280 nfsidl nfsio 53523 163731 0 0 3 0x14280 nfsidl nfsio 96832 247645 0 0 3 0x14280 nfsidl nfsio 24713 153740 0 0 3 0x14280 nfsidl nfsio 5988 356881 0 0 3 0x14280 nfsidl nfsio 44685 280612 0 0 3 0x14280 nfsidl nfsio 98159 281423 0 0 3 0x14280 nfsidl nfsio 66892 29836 0 0 3 0x14280 nfsidl nfsio 32672 155438 0 0 3 0x14280 nfsidl nfsio 69854 374794 0 0 3 0x14280 nfsidl nfsio 76889 267584 86774 0 2 0x2 syz-executor.1 58733 418669 0 0 3 0x14200 bored sosplice 86774 139169 15665 0 3 0x82 thrsleep syz-fuzzer 86774 386453 15665 0 3 0x4000082 nanosleep syz-fuzzer 86774 73952 15665 0 3 0x4000082 thrsleep syz-fuzzer 86774 71442 15665 0 2 0x4000002 syz-fuzzer 86774 346050 15665 0 3 0x4000082 thrsleep syz-fuzzer 86774 402409 15665 0 7 0x4000002 syz-fuzzer 86774 265903 15665 0 3 0x4000082 thrsleep syz-fuzzer 86774 454932 15665 0 3 0x4000082 thrsleep syz-fuzzer 15665 295750 87299 0 3 0x10008a pause ksh 87299 438353 49161 0 3 0x92 select sshd 58038 121360 1 0 3 0x100083 ttyin getty 49161 209634 1 0 3 0x80 select sshd 97513 144382 56835 74 3 0x100092 bpf pflogd 56835 492350 1 0 3 0x80 netio pflogd 78597 38325 26728 73 3 0x100090 kqread syslogd 26728 60966 1 0 3 0x100082 netio syslogd 41867 6071 1 77 2 0x100090 dhclient 88407 437418 1 0 3 0x80 poll dhclient 66317 179525 0 0 3 0x14200 bored smr 86893 364466 0 0 2 0x14200 zerothread 30036 200283 0 0 3 0x14200 aiodoned aiodoned 80954 37439 0 0 3 0x14200 syncer update 87852 340656 0 0 3 0x14200 cleaner cleaner 2396 369895 0 0 3 0x14200 reaper reaper 82631 445461 0 0 3 0x14200 pgdaemon pagedaemon 57105 515448 0 0 3 0x14200 bored crynlk 31191 343940 0 0 3 0x14200 bored crypto 80045 116671 0 0 3 0x40014200 acpi0 acpi0 19217 439023 0 0 3 0x40014200 idle1 58610 246957 0 0 3 0x14200 bored softnet 81573 410460 0 0 2 0x14200 systqmp 53802 182256 0 0 3 0x14200 bored systq 80629 212315 0 0 3 0x40014200 bored softclock 26484 6351 0 0 3 0x40014200 idle0 1 344347 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 9524 6426K 6940K 78643K 12339 0 pcb 13 8K 8K 78643K 93 0 rtable 94 4K 7K 78643K 1999 0 ifaddr 93 18K 19K 78643K 438 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 2090 0 iov 0 0K 24K 78643K 331 0 mount 1 1K 1K 78643K 1 0 vnodes 1215 76K 77K 78643K 2212 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 19 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 127 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 2160 0 sigio 0 0K 0K 78643K 4 0 proc 63 63K 83K 78643K 600 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 534 0 in_multi 82 4K 4K 78643K 165 0 ether_multi 1 0K 0K 78643K 15 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 294 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 198 93K 94K 78643K 7978 0 UVM aobj 42 4K 4K 78643K 48 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 72 0 NDP 13 0K 0K 78643K 36 0 temp 148 3898K 3966K 78643K 18338 0 kqueue 3 4K 18K 78643K 36 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 15 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 65 0 63 1 0 1 1 0 8 0 rtentry 112 103 0 69 2 0 2 2 0 8 0 unpcb 120 882 0 872 1 0 1 1 0 8 0 syncache 272 7 0 7 3 3 0 1 0 8 0 tcpqe 32 683 0 683 2 2 0 1 0 8 0 tcpcb 592 447 0 443 6 5 1 3 0 8 0 inpcb 296 2537 0 2530 6 5 1 2 0 8 0 rttmr 72 4 0 3 2 1 1 1 0 8 0 nd6 48 19 0 13 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1136 4 0 4 4 4 0 1 0 8 0 pffrag 232 7 0 7 2 2 0 1 0 482 0 pffrnode 88 7 0 7 2 2 0 1 0 8 0 pffrent 40 103 0 103 2 2 0 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 pfrktable 1344 767 0 764 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 22 0 20 1 0 1 1 0 8 0 pfstkey 112 22 0 20 1 0 1 1 0 8 0 pfstate 328 22 0 20 2 1 1 2 0 8 0 pfrule 1360 287 0 270 4 2 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 240 17 3 14 15 0 8 0 art_table 32 454 0 240 2 0 2 2 0 8 0 art_node 16 92 0 60 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 24 2 1 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 121 0 111 1 0 1 1 0 8 0 shmpl 112 45 0 6 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5136 0 3737 89 1 88 89 0 8 0 ffsino 272 5136 0 3737 95 1 94 95 0 8 0 nchpl 144 9265 0 7681 60 0 60 60 0 8 0 uvmvnodes 72 5578 0 0 102 0 102 102 0 8 0 vnodes 208 5578 0 0 294 0 294 294 0 8 0 namei 1024 23699 0 23699 2 1 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 9 0 3 2 1 1 1 0 8 0 pfiaddrpl 120 254 0 252 2 1 1 1 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 200 38497 0 38497 15 12 3 7 0 8 3 plimitpl 152 74 0 66 1 0 1 1 0 8 0 sigapl 424 2390 0 2339 6 0 6 6 0 8 0 futexpl 56 29071 0 29071 2 1 1 1 0 8 1 knotepl 112 158 0 144 2 1 1 2 0 8 0 kqueuepl 152 126 0 120 1 0 1 1 0 8 0 pipepl 304 536 0 528 7 5 2 2 0 8 1 fdescpl 496 2354 0 2339 3 0 3 3 0 8 0 filepl 152 14346 0 14259 6 1 5 6 0 8 0 lockfpl 104 610 0 609 1 0 1 1 0 8 0 lockfspl 48 242 0 241 1 0 1 1 0 8 0 sessionpl 120 20 0 9 1 0 1 1 0 8 0 pgrppl 48 28 0 17 1 0 1 1 0 8 0 ucredpl 96 578 0 569 1 0 1 1 0 8 0 zombiepl 144 2340 0 2339 1 0 1 1 0 8 0 processpl 1008 2390 0 2339 7 0 7 7 0 8 0 procpl 632 6367 0 6309 10 4 6 6 0 8 0 srpgc 72 2 0 2 1 1 0 1 0 8 0 sosppl 144 15 0 15 5 5 0 1 0 8 0 sockpl 400 3490 0 3471 8 5 3 4 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 216 0 0 26 1 25 26 0 8 0 mtagpl 96 120 0 0 3 0 3 3 0 8 0 mbufpl 256 453 0 0 22 0 22 22 0 8 0 bufpl 280 15491 0 9254 446 0 446 446 0 8 0 anonpl 16 771879 0 754493 123 36 87 90 0 124 7 amapchunkpl 152 44748 0 44451 24 7 17 19 0 158 3 amappl16 192 11800 0 10982 79 29 50 54 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 436 0 433 1 0 1 1 0 8 0 amappl13 168 1706 0 1702 1 0 1 1 0 8 0 amappl12 160 892 0 888 1 0 1 1 0 8 0 amappl11 152 62 0 47 1 0 1 1 0 8 0 amappl10 144 22 0 19 1 0 1 1 0 8 0 amappl9 136 377 0 375 1 0 1 1 0 8 0 amappl8 128 432 0 374 2 0 2 2 0 8 0 amappl7 120 132 0 118 1 0 1 1 0 8 0 amappl6 112 37 0 28 1 0 1 1 0 8 0 amappl5 104 2249 0 2232 1 0 1 1 0 8 0 amappl4 96 1325 0 1292 1 0 1 1 0 8 0 amappl3 88 845 0 835 1 0 1 1 0 8 0 amappl2 80 19074 0 19003 2 0 2 2 0 8 0 amappl1 72 73787 0 73348 23 13 10 18 0 8 0 amappl 80 6934 0 6851 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 47 0 6 1 0 1 1 0 8 0 uaddrrnd 24 2363 0 2342 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2363 0 2342 1 0 1 1 0 8 0 vmmpekpl 168 20475 0 20435 2 0 2 2 0 8 0 vmmpepl 168 305080 0 303086 184 77 107 130 0 357 11 vmsppl 368 2362 0 2342 3 0 3 3 0 8 1 pdppl 4096 4733 0 4690 6 0 6 6 0 8 0 pvpl 32 1420155 0 1399683 286 82 204 215 0 265 21 pmappl 232 2362 0 2342 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 290 0 20 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff827b8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc intr_handler(ffff800020eaa690,ffff80000065bd80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5a80) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020eaa7e0,ffff800000256b80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f end of kernel end trace frame: 0xc000205f20, count: -9 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(80) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b41200) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000b21000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000b21000) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000b21000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800023faabc0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e3a2828,7,fffffd807f7bf7e0,ffff8000230e4ca0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80675ea9a0,ffff8000230e4ca0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80675ea9a0,ffff8000230e4ca0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80675ea9a0,ffff8000230e4ca0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80675ea9a0,ffff8000230e4ca0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff8000230e4ca0) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff8000230e4ca0,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff8000230e4ca0,ffff800023faae50,ffff800023faaea0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023faaf20) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023faaf20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4ea0, count: -16