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(0xfffffd807effeb80, 0xb, 0, 1) -> e in_delmulti(ffffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800021f67450, count: 0 ddb{1}> trace in_delmulti(ffffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b27900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1032 tun_clone_destroy(ffff800000ac6000) 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(ffff800021f67630) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e28f758,7,fffffd807f7bf7e0,ffff800021f68798) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067f5aa38,ffff800021f68798) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067f5aa38,ffff800021f68798) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067f5aa38,ffff800021f68798) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067f5aa38,ffff800021f68798) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021f68798) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800021f68798,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800021f68798,ffff800021f678c0,ffff800021f67910) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021f67990) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f67990) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcf670, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800021f67400 rbx 0 rdx 0 rcx 0 rax 0xffff800021f68798 r8 0xffff800000b27900 r9 0xffffffff81e56833 rt_ifa_purge+0x153 r10 0x5 r11 0xb4d3b778bf009547 r12 0 r13 0x3 r14 0xffffffffffffffff r15 0x1 rip 0xffffffff823bf7bd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f673a0 ss 0 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=343024 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021f68520,0xffffffff828cde18 process=0xffff800021f4ebd8 user=0xffff800021f62000, vmspace=0xfffffd807effeb80 estcpu=36, cpticks=3, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 42376 342594 0 0 3 0x14200 acct acct 89079 173715 0 0 3 0x14280 nfsidl nfsio 18006 171591 0 0 3 0x14280 nfsidl nfsio 82769 143618 0 0 3 0x14280 nfsidl nfsio 36267 137889 0 0 3 0x14280 nfsidl nfsio 25014 298065 0 0 3 0x14280 nfsidl nfsio 82190 487893 0 0 3 0x14280 nfsidl nfsio 17481 182425 0 0 3 0x14280 nfsidl nfsio 54859 148597 0 0 3 0x14280 nfsidl nfsio 43602 400000 0 0 3 0x14280 nfsidl nfsio 50652 154864 0 0 3 0x14280 nfsidl nfsio 78784 384695 0 0 3 0x14280 nfsidl nfsio 74881 450845 0 0 3 0x14280 nfsidl nfsio 75912 366035 0 0 3 0x14280 nfsidl nfsio 90130 348789 0 0 3 0x14280 nfsidl nfsio 59173 197323 0 0 3 0x14280 nfsidl nfsio 93138 495727 0 0 3 0x14280 nfsidl nfsio 63400 130433 0 0 3 0x14280 nfsidl nfsio 73729 104400 0 0 3 0x14280 nfsidl nfsio 18291 443817 0 0 3 0x14280 nfsidl nfsio 10166 156703 0 0 3 0x14280 nfsidl nfsio 96451 252073 0 0 3 0x14200 bored sosplice 3786 265954 39685 0 3 0x82 piperd syz-executor.1 39685 169252 23038 0 2 0x2 syz-fuzzer 39685 39642 23038 0 3 0x4000082 nanosleep syz-fuzzer 39685 177850 23038 0 3 0x4000082 thrsleep syz-fuzzer 39685 297594 23038 0 3 0x4000082 thrsleep syz-fuzzer 39685 384240 23038 0 3 0x4000082 thrsleep syz-fuzzer 39685 19490 23038 0 3 0x4000082 thrsleep syz-fuzzer 39685 360617 23038 0 7 0x4000002 syz-fuzzer 39685 279983 23038 0 3 0x4000082 kqread syz-fuzzer 23038 509909 55070 0 3 0x10008a pause ksh 55070 382507 32245 0 3 0x92 select sshd 96428 468770 1 0 3 0x100083 ttyin getty 32245 75947 1 0 3 0x80 select sshd 78981 382980 30619 74 3 0x100092 bpf pflogd 30619 133688 1 0 3 0x80 netio pflogd 78258 156893 68519 73 3 0x100090 kqread syslogd 68519 322561 1 0 3 0x100082 netio syslogd 75370 462468 1 77 2 0x100090 dhclient 19090 226235 1 0 3 0x80 poll dhclient 38671 310855 0 0 3 0x14200 bored smr 19544 57865 0 0 3 0x14200 pgzero zerothread 62048 511777 0 0 3 0x14200 aiodoned aiodoned 99880 45454 0 0 3 0x14200 syncer update 41688 253470 0 0 3 0x14200 cleaner cleaner 19136 516990 0 0 3 0x14200 reaper reaper 46177 150119 0 0 3 0x14200 pgdaemon pagedaemon 39548 401313 0 0 3 0x14200 bored crynlk 95642 259166 0 0 3 0x14200 bored crypto 21842 432432 0 0 3 0x40014200 acpi0 acpi0 20481 82886 0 0 3 0x40014200 idle1 70816 425723 0 0 3 0x14200 bored softnet 71679 426519 0 0 2 0x14200 systqmp 35352 434982 0 0 3 0x14200 bored systq 51260 407574 0 0 3 0x40014200 bored softclock 33897 459189 0 0 3 0x40014200 idle0 1 146909 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 9531 6428K 6814K 78643K 11561 0 pcb 13 8K 8K 78643K 756 0 rtable 99 12K 15K 78643K 535 0 ifaddr 86 16K 17K 78643K 194 0 sysctl 0 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1610 0 iov 0 0K 16K 78643K 70 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1508 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 27 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 833 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 95K 78643K 516 0 subproc 23 1K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 330 0 in_multi 62 3K 3K 78643K 215 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 16 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 255 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 173 43K 58K 78643K 3718 0 UVM aobj 52 7K 7K 78643K 63 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 818 0 NDP 14 0K 0K 78643K 45 0 temp 145 3880K 3956K 78643K 22590 0 kqueue 3 4K 10K 78643K 29 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 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 43 0 41 1 0 1 1 0 8 0 rtentry 112 107 0 72 2 0 2 2 0 8 0 unpcb 120 414 0 404 1 0 1 1 0 8 0 syncache 272 17 0 17 4 4 0 1 0 8 0 tcpqe 32 410 0 410 2 2 0 2 0 8 0 tcpcb 592 660 0 653 6 4 2 3 0 8 1 inpcb 296 2602 0 2595 4 2 2 2 0 8 1 rttmr 72 8 0 8 3 3 0 1 0 8 0 nd6 48 33 0 30 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 13 0 13 4 4 0 1 0 482 0 pffrnode 88 13 0 13 4 4 0 1 0 8 0 pffrent 40 330 0 330 4 4 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 42 0 41 5 4 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 53 0 50 1 0 1 1 0 8 0 pfstkey 112 57 0 54 2 1 1 2 0 8 0 pfstate 328 54 0 51 4 2 2 4 0 8 0 pfrule 1360 39 0 33 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 295 0 117 14 2 12 14 0 8 0 art_table 32 297 0 117 2 0 2 2 0 8 0 art_node 16 105 0 68 1 0 1 1 0 8 0 sysvmsgpl 40 54 0 31 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 60 0 11 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2452 0 1056 88 0 88 88 0 8 0 ffsino 272 2452 0 1056 95 1 94 94 0 8 0 nchpl 144 3778 0 2192 60 0 60 60 0 8 0 uvmvnodes 72 2703 0 0 50 0 50 50 0 8 0 vnodes 208 2703 0 0 143 0 143 143 0 8 0 namei 1024 10222 0 10222 4 3 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 13 0 13 4 4 0 1 0 8 0 scxspl 200 11679 0 11679 11 10 1 7 0 8 1 plimitpl 152 56 0 48 1 0 1 1 0 8 0 sigapl 424 1070 0 1018 8 2 6 7 0 8 0 futexpl 56 13891 0 13891 3 2 1 1 0 8 1 knotepl 112 95 0 81 1 0 1 1 0 8 0 kqueuepl 152 118 0 116 1 0 1 1 0 8 0 pipepl 304 198 0 190 6 4 2 2 0 8 1 fdescpl 496 1033 0 1018 5 2 3 3 0 8 0 filepl 152 6885 0 6798 7 2 5 6 0 8 0 lockfpl 104 182 0 181 1 0 1 1 0 8 0 lockfspl 48 67 0 66 1 0 1 1 0 8 0 sessionpl 120 18 0 7 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 563 0 554 1 0 1 1 0 8 0 zombiepl 144 1019 0 1018 2 1 1 1 0 8 0 processpl 1008 1070 0 1018 8 1 7 7 0 8 0 procpl 632 2882 0 2823 7 1 6 6 0 8 0 sosppl 144 13 0 13 3 2 1 1 0 8 1 sockpl 400 3094 0 3075 8 5 3 4 0 8 1 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 15 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 255 0 0 31 0 31 31 0 8 0 mtagpl 96 55 0 0 2 0 2 2 0 8 0 mbufpl 256 441 0 0 26 0 26 26 0 8 0 bufpl 280 4823 0 134 335 0 335 335 0 8 0 anonpl 16 120471 0 101742 114 37 77 91 0 124 0 amapchunkpl 152 6790 0 6462 30 15 15 27 0 158 0 amappl16 192 4915 0 4059 75 32 43 54 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 477 0 475 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 26 0 22 1 0 1 1 0 8 0 amappl11 152 527 0 511 1 0 1 1 0 8 0 amappl10 144 22 0 18 1 0 1 1 0 8 0 amappl9 136 369 0 367 1 0 1 1 0 8 0 amappl8 128 364 0 318 2 0 2 2 0 8 0 amappl7 120 124 0 110 1 0 1 1 0 8 0 amappl6 112 35 0 27 1 0 1 1 0 8 0 amappl5 104 466 0 450 1 0 1 1 0 8 0 amappl4 96 963 0 936 1 0 1 1 0 8 0 amappl3 88 634 0 624 1 0 1 1 0 8 0 amappl2 80 7282 0 7215 2 0 2 2 0 8 0 amappl1 72 40181 0 39734 23 13 10 18 0 8 0 amappl 80 3173 0 3087 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 62 0 11 1 0 1 1 0 8 0 uaddrrnd 24 1044 0 1023 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1044 0 1023 1 0 1 1 0 8 0 vmmpekpl 168 10461 0 10417 3 0 3 3 0 8 0 vmmpepl 168 140887 0 138862 130 35 95 115 0 357 1 vmsppl 368 1043 0 1023 4 2 2 3 0 8 0 pdppl 4096 2095 0 2052 10 4 6 7 0 8 0 pvpl 32 363721 0 341778 241 57 184 213 0 265 3 pmappl 232 1043 0 1023 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 298 0 24 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(ffffffff82785ff0) 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 __mp_lock(ffffffff82933140) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) at __mp_lock+0x12e sys/kern/kern_lock.c:147 intr_handler(ffff800020e9aeb0,ffff80000065bd80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f end of kernel end trace frame: 0xc000207f20, count: -6 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(ffffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b27900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1032 tun_clone_destroy(ffff800000ac6000) 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(ffff800021f67630) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e28f758,7,fffffd807f7bf7e0,ffff800021f68798) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067f5aa38,ffff800021f68798) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067f5aa38,ffff800021f68798) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067f5aa38,ffff800021f68798) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067f5aa38,ffff800021f68798) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021f68798) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800021f68798,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800021f68798,ffff800021f678c0,ffff800021f67910) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021f67990) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f67990) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcf670, count: -16