uvm_fault(0xfffffd807efff8a0, 0x601, 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(0xfffffd807efff8a0, 0x601, 0, 1) -> e in_delmulti(5f5) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800021ed1b70, count: 0 ddb{1}> trace in_delmulti(5f5) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b2b300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000b0b000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000b0b000) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000b0b000) 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(ffff800021ed1d50) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e624348,7,fffffd807f7bf780,ffff800020ec4138) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80669f64d8,ffff800020ec4138) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80669f64d8,ffff800020ec4138) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80669f64d8,ffff800020ec4138) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80669f64d8,ffff800020ec4138) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ec4138) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ec4138,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020ec4138,ffff800021ed1fe0,ffff800021ed2030) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021ed20b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ed20b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcdea0, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800021ed1b20 rbx 0 rdx 0xffff800020ec4138 rcx 0 rax 0 r8 0xffffffff81636133 rt_ifa_purge+0x153 r9 0x5 r10 0x3 r11 0xd6e78353b7e4fe74 r12 0 r13 0x3 r14 0x5f5 r15 0x1 rip 0xffffffff811e3b6d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021ed1ac0 ss 0 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=139549 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec39e8,0xffffffff82928bc8 process=0xffff800021ee0030 user=0xffff800021ecd000, vmspace=0xfffffd807efff8a0 estcpu=36, cpticks=7, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6058 44359 0 0 3 0x14200 acct acct 60998 341582 0 0 3 0x14280 nfsidl nfsio 62248 237343 0 0 3 0x14280 nfsidl nfsio 30889 415914 0 0 3 0x14280 nfsidl nfsio 95730 248328 0 0 3 0x14280 nfsidl nfsio 75672 8790 0 0 3 0x14280 nfsidl nfsio 67375 439482 0 0 3 0x14280 nfsidl nfsio 75967 157795 0 0 3 0x14280 nfsidl nfsio 21756 260705 0 0 3 0x14280 nfsidl nfsio 98031 461292 0 0 3 0x14280 nfsidl nfsio 58753 483703 0 0 3 0x14280 nfsidl nfsio 93544 508033 0 0 3 0x14280 nfsidl nfsio 93920 304233 0 0 3 0x14280 nfsidl nfsio 69169 377690 0 0 3 0x14280 nfsidl nfsio 75706 112926 0 0 3 0x14280 nfsidl nfsio 94238 89153 0 0 3 0x14280 nfsidl nfsio 27016 191603 0 0 3 0x14280 nfsidl nfsio 60510 242188 0 0 3 0x14280 nfsidl nfsio 79966 330957 0 0 3 0x14280 nfsidl nfsio 83254 89326 0 0 3 0x14280 nfsidl nfsio 61694 514047 0 0 3 0x14280 nfsidl nfsio 76337 248225 0 0 3 0x14200 bored sosplice 75403 320884 77437 0 3 0x82 piperd syz-executor.1 77437 517463 72985 0 3 0x82 thrsleep syz-fuzzer 77437 427088 72985 0 3 0x4000082 nanosleep syz-fuzzer 77437 196524 72985 0 2 0x4000002 syz-fuzzer 77437 365417 72985 0 3 0x4000082 kqread syz-fuzzer 77437 281298 72985 0 3 0x4000082 thrsleep syz-fuzzer 77437 186148 72985 0 3 0x4000082 thrsleep syz-fuzzer 77437 406477 72985 0 3 0x4000082 thrsleep syz-fuzzer 77437 137029 72985 0 3 0x4000082 thrsleep syz-fuzzer 77437 378501 72985 0 3 0x4000082 thrsleep syz-fuzzer 77437 496747 72985 0 7 0x4000002 syz-fuzzer 72985 494889 77867 0 3 0x10008a pause ksh 77867 340844 71841 0 3 0x92 select sshd 84444 213376 1 0 3 0x100083 ttyin getty 71841 454801 1 0 3 0x80 select sshd 37201 170852 10699 74 3 0x100092 bpf pflogd 10699 360785 1 0 3 0x80 netio pflogd 50965 133663 74185 73 3 0x100090 kqread syslogd 74185 241160 1 0 3 0x100082 netio syslogd 55816 49622 1 77 3 0x100090 poll dhclient 63590 209104 1 0 3 0x80 poll dhclient 84134 15426 0 0 3 0x14200 bored smr 37937 381801 0 0 3 0x14200 pgzero zerothread 62399 130108 0 0 3 0x14200 aiodoned aiodoned 22298 507731 0 0 3 0x14200 syncer update 70230 433980 0 0 3 0x14200 cleaner cleaner 91208 444461 0 0 3 0x14200 reaper reaper 97572 213409 0 0 3 0x14200 pgdaemon pagedaemon 15511 404973 0 0 3 0x14200 bored crynlk 98719 490159 0 0 3 0x14200 bored crypto 60964 503045 0 0 3 0x40014200 acpi0 acpi0 4963 323080 0 0 3 0x40014200 idle1 59116 49425 0 0 3 0x14200 bored softnet 81594 106126 0 0 3 0x14200 bored systqmp 38215 13192 0 0 3 0x14200 bored systq 85697 150912 0 0 3 0x40014200 bored softclock 11481 61234 0 0 3 0x40014200 idle0 1 26059 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 9526 6434K 6790K 78643K 11224 0 pcb 13 8K 8K 78643K 87 0 rtable 140 8K 10K 78643K 565 0 ifaddr 94 19K 19K 78643K 209 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 73 0 ioctlops 0 0K 4K 78643K 1745 0 iov 0 0K 16K 78643K 57 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1473 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 16 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 140 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 678 0 sigio 0 0K 0K 78643K 10 0 proc 61 63K 83K 78643K 551 0 subproc 23 1K 2K 78643K 53 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 58 0 in_multi 84 4K 4K 78643K 158 0 ether_multi 1 0K 0K 78643K 16 0 mrt 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 268 0 pfkey data 0 0K 1K 78643K 4 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 120 38K 43K 78643K 3006 0 UVM aobj 25 7K 7K 78643K 27 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 55 0 NDP 13 0K 0K 78643K 43 0 temp 137 3864K 3932K 78643K 6314 0 kqueue 3 4K 16K 78643K 31 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 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 75 0 24 2 0 2 2 0 8 0 unpcb 120 261 0 251 1 0 1 1 0 8 0 syncache 264 8 0 8 2 2 0 1 0 8 0 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 544 196 0 190 2 0 2 2 0 8 1 inpcb 296 1469 0 1462 2 0 2 2 0 8 1 nd6 48 19 0 10 1 0 1 1 0 8 0 pkpcb 40 8 0 8 3 2 1 1 0 8 1 ppxss 1136 5 0 5 1 1 0 1 0 8 0 pffrag 232 7 0 4 2 1 1 1 0 482 0 pffrnode 88 7 0 4 2 1 1 1 0 8 0 pffrent 40 185 0 182 2 1 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 pfrktable 1344 74 0 65 3 1 2 2 0 8 1 pfstitem 24 32 0 19 1 0 1 1 0 8 0 pfstkey 112 32 0 19 1 0 1 1 0 8 0 pfstate 328 32 0 19 3 1 2 3 0 8 0 pfrule 1360 36 0 29 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 292 0 70 14 0 14 14 0 8 0 art_table 32 294 0 70 2 0 2 2 0 8 0 art_node 16 74 0 28 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 136 0 126 1 0 1 1 0 8 0 shmpl 112 24 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 2290 0 890 89 0 89 89 0 8 0 ffsino 272 2290 0 890 94 0 94 94 0 8 0 nchpl 144 3433 0 1845 60 0 60 60 0 8 0 uvmvnodes 72 2510 0 0 46 0 46 46 0 8 0 vnodes 208 2510 0 0 133 0 133 133 0 8 0 namei 1024 9568 0 9568 1 0 1 1 0 8 1 percpumem 16 47 0 15 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 25 0 17 2 1 1 1 0 8 0 scsiplug 64 3 0 3 1 1 0 1 0 8 0 scxspl 192 10362 0 10362 13 9 4 7 0 8 4 plimitpl 152 58 0 50 1 0 1 1 0 8 0 sigapl 424 912 0 860 7 1 6 7 0 8 0 futexpl 56 11088 0 11088 1 0 1 1 0 8 1 knotepl 112 113 0 100 1 0 1 1 0 8 0 kqueuepl 144 86 0 82 1 0 1 1 0 8 0 pipepl 304 179 0 172 3 1 2 2 0 8 1 fdescpl 496 875 0 860 3 0 3 3 0 8 0 filepl 152 5126 0 5041 6 1 5 6 0 8 1 lockfpl 104 98 0 97 1 0 1 1 0 8 0 lockfspl 48 34 0 33 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 418 0 409 1 0 1 1 0 8 0 zombiepl 144 861 0 860 1 0 1 1 0 8 0 processpl 992 912 0 860 7 0 7 7 0 8 0 procpl 624 2186 0 2125 6 0 6 6 0 8 0 sosppl 128 16 0 16 2 2 0 1 0 8 0 sockpl 400 1793 0 1774 7 3 4 5 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 320 0 0 39 0 39 39 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 310 0 0 19 0 19 19 0 8 0 bufpl 280 4596 0 134 319 0 319 319 0 8 0 anonpl 16 114844 0 97440 97 19 78 82 0 124 6 amapchunkpl 152 5315 0 5150 27 15 12 21 0 158 5 amappl16 192 4615 0 3668 69 20 49 57 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 30 0 27 1 0 1 1 0 8 0 amappl13 168 483 0 478 1 0 1 1 0 8 0 amappl12 160 10 0 6 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 160 0 155 1 0 1 1 0 8 0 amappl9 136 444 0 443 1 0 1 1 0 8 0 amappl8 128 427 0 398 2 0 2 2 0 8 0 amappl7 120 260 0 246 1 0 1 1 0 8 0 amappl6 112 24 0 20 1 0 1 1 0 8 0 amappl5 104 771 0 753 1 0 1 1 0 8 0 amappl4 96 944 0 915 1 0 1 1 0 8 0 amappl3 88 123 0 118 1 0 1 1 0 8 0 amappl2 80 5964 0 5896 2 0 2 2 0 8 0 amappl1 72 34212 0 33751 23 13 10 18 0 8 0 amappl 80 2442 0 2395 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 26 0 2 1 0 1 1 0 8 0 uaddrrnd 24 879 0 862 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 879 0 862 1 0 1 1 0 8 0 vmmpekpl 168 9735 0 9695 3 0 3 3 0 8 0 vmmpepl 168 118375 0 116304 132 37 95 124 0 357 1 vmsppl 368 878 0 862 2 0 2 2 0 8 0 pdppl 4096 1765 0 1726 7 1 6 6 0 8 0 pvpl 32 328720 0 308055 213 24 189 195 0 265 17 pmappl 232 878 0 862 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 293 0 7 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82722ff0) 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(ffffffff8292ee60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292ee60) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff800020dddd48,ffff800020dddda8,c0003abef8,ffffffff8242a59e,ffffffff812a1c30,63) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020eb6860) at syscall+0x397 mi_syscall sys/sys/syscall_mi.h:81 [inline] syscall(ffff800020eb6860) at syscall+0x397 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0003abf10, count: -7 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(5f5) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b2b300) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000b0b000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000b0b000) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000b0b000) 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(ffff800021ed1d50) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e624348,7,fffffd807f7bf780,ffff800020ec4138) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80669f64d8,ffff800020ec4138) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80669f64d8,ffff800020ec4138) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80669f64d8,ffff800020ec4138) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80669f64d8,ffff800020ec4138) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ec4138) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ec4138,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020ec4138,ffff800021ed1fe0,ffff800021ed2030) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021ed20b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ed20b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcdea0, count: -16