uvm_fault(0xfffffd807effe5c0, 0x100b, 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(0xfffffd807effe5c0, 0x100b, 0, 1) -> e in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800024195750, count: 0 ddb{1}> trace in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b0c500) 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(ffff800024195930) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed79828,7,fffffd807f7bf840,ffff80002419c2a0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067f79278,ffff80002419c2a0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067f79278,ffff80002419c2a0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067f79278,ffff80002419c2a0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067f79278,ffff80002419c2a0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002419c2a0) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff80002419c2a0,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff80002419c2a0,ffff800024195bc0,ffff800024195c10) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800024195c90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024195c90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff8fd0, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800024195700 rbx 0 rdx 0 rcx 0 rax 0xffff80002419c2a0 r8 0xffff800000b0c500 r9 0xffffffff81e56833 rt_ifa_purge+0x153 r10 0x5 r11 0x1587dd234e535051 r12 0 r13 0x3 r14 0xfff r15 0x1 rip 0xffffffff823bf7bd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000241956a0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=330891 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=71, nice=20 forw=0xffffffffffffffff, list=0xffff80002419c028,0xffffffff828cde18 process=0xffff8000241833b0 user=0xffff800024190000, vmspace=0xfffffd807effe5c0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30313 11586 0 0 3 0x14200 acct acct 24851 304547 0 0 3 0x14200 bored sosplice 57821 67999 0 0 3 0x14280 nfsidl nfsio 37899 157193 0 0 3 0x14280 nfsidl nfsio 1384 217225 0 0 3 0x14280 nfsidl nfsio 27552 74042 0 0 3 0x14280 nfsidl nfsio 19921 143615 0 0 3 0x14280 nfsidl nfsio 15134 257033 0 0 3 0x14280 nfsidl nfsio 26919 391021 0 0 3 0x14280 nfsidl nfsio 51117 291741 0 0 3 0x14280 nfsidl nfsio 76052 480884 0 0 3 0x14280 nfsidl nfsio 45067 214289 0 0 3 0x14280 nfsidl nfsio 62514 308709 0 0 3 0x14280 nfsidl nfsio 37110 356581 0 0 3 0x14280 nfsidl nfsio 87653 310134 0 0 3 0x14280 nfsidl nfsio 47440 221045 0 0 3 0x14280 nfsidl nfsio 6727 414444 0 0 3 0x14280 nfsidl nfsio 18778 263557 0 0 3 0x14280 nfsidl nfsio 21250 409416 0 0 3 0x14280 nfsidl nfsio 29983 276870 0 0 3 0x14280 nfsidl nfsio 30521 85539 0 0 3 0x14280 nfsidl nfsio 72250 516509 0 0 3 0x14280 nfsidl nfsio 74650 493510 41588 0 3 0x82 nanosleep syz-executor.1 41588 394480 34023 0 3 0x82 thrsleep syz-fuzzer 41588 133941 34023 0 3 0x4000082 nanosleep syz-fuzzer 41588 141894 34023 0 3 0x4000082 thrsleep syz-fuzzer 41588 303036 34023 0 7 0x4000002 syz-fuzzer 41588 506506 34023 0 3 0x4000082 thrsleep syz-fuzzer 41588 116814 34023 0 3 0x4000082 thrsleep syz-fuzzer 41588 37132 34023 0 2 0x4000002 syz-fuzzer 41588 250420 34023 0 3 0x4000082 thrsleep syz-fuzzer 34023 376119 57928 0 3 0x10008a pause ksh 57928 316893 87680 0 3 0x92 select sshd 29827 373869 1 0 3 0x100083 ttyin getty 87680 92749 1 0 3 0x80 select sshd 30694 89905 77314 74 2 0x100012 pflogd 77314 208307 1 0 3 0x80 netio pflogd 56724 116294 52102 73 3 0x100090 kqread syslogd 52102 165762 1 0 3 0x100082 netio syslogd 43596 455979 1 77 2 0x100090 dhclient 11711 303653 1 0 3 0x80 poll dhclient 26752 178210 0 0 3 0x14200 bored smr 88869 234419 0 0 2 0x14200 zerothread 27603 386225 0 0 3 0x14200 aiodoned aiodoned 46788 509535 0 0 3 0x14200 syncer update 11976 456134 0 0 3 0x14200 cleaner cleaner 52714 68071 0 0 3 0x14200 reaper reaper 63290 387597 0 0 3 0x14200 pgdaemon pagedaemon 24236 167476 0 0 3 0x14200 bored crynlk 95214 2629 0 0 3 0x14200 bored crypto 34945 242686 0 0 3 0x40014200 acpi0 acpi0 27006 521372 0 0 3 0x40014200 idle1 22780 90589 0 0 3 0x14200 bored softnet 29408 498519 0 0 2 0x14200 systqmp 45101 432833 0 0 3 0x14200 bored systq 25561 501266 0 0 3 0x40014200 bored softclock 6449 187083 0 0 3 0x40014200 idle0 1 51407 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 9518 6412K 6797K 78643K 10923 0 pcb 13 8K 8K 78643K 47 0 rtable 93 4K 8K 78643K 374 0 ifaddr 74 14K 15K 78643K 141 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1617 0 iov 0 0K 12K 78643K 41 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1347 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 79 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 308 0 proc 61 63K 95K 78643K 472 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 30 0 in_multi 38 2K 2K 78643K 87 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 6 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 220 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 189 45K 47K 78643K 1979 0 UVM aobj 12 2K 3K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 20 0 NDP 13 0K 0K 78643K 28 0 temp 117 3866K 3938K 78643K 8935 0 kqueue 3 4K 6K 78643K 6 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 6 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 29 0 27 1 0 1 1 0 8 0 rtentry 112 61 0 26 2 0 2 2 0 8 0 unpcb 120 131 0 121 1 0 1 1 0 8 0 syncache 272 8 0 8 3 2 1 1 0 8 1 tcpqe 32 474 0 474 2 2 0 2 0 8 0 tcpcb 592 74 0 68 2 1 1 2 0 8 0 inpcb 296 321 0 314 5 3 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 15 0 10 1 0 1 1 0 8 0 ppxss 1136 2 0 2 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 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 29 0 29 1 1 0 1 0 8 0 pftag 88 2 0 2 1 1 0 1 0 8 0 pfstitem 24 29 0 21 1 0 1 1 0 8 0 pfstkey 112 33 0 25 1 0 1 1 0 8 0 pfstate 328 31 0 23 2 0 2 2 0 8 0 pfrule 1360 25 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 292 0 106 14 2 12 14 0 8 0 art_table 32 293 0 106 2 0 2 2 0 8 0 art_node 16 60 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 6 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 77 0 67 1 0 1 1 0 8 0 shmpl 112 13 0 4 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1828 0 427 89 1 88 89 0 8 0 ffsino 272 1828 0 427 94 0 94 94 0 8 0 nchpl 144 2443 0 855 60 0 60 60 0 8 0 uvmvnodes 72 1932 0 0 36 0 36 36 0 8 0 vnodes 208 1932 0 0 102 0 102 102 0 8 0 namei 1024 7127 0 7127 2 1 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 8 1 1 0 1 0 8 0 scxspl 200 7364 0 7364 9 8 1 7 0 8 1 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 545 0 492 7 0 7 7 0 8 0 futexpl 56 3447 0 3447 2 1 1 1 0 8 1 knotepl 112 68 0 54 1 0 1 1 0 8 0 kqueuepl 152 15 0 13 1 0 1 1 0 8 0 pipepl 304 96 0 88 4 3 1 2 0 8 0 fdescpl 496 508 0 492 3 0 3 3 0 8 0 filepl 152 3004 0 2914 5 0 5 5 0 8 0 lockfpl 104 105 0 104 1 0 1 1 0 8 0 lockfspl 48 32 0 31 1 0 1 1 0 8 0 sessionpl 120 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 678 0 669 1 0 1 1 0 8 0 zombiepl 144 494 0 492 1 0 1 1 0 8 0 processpl 1008 545 0 492 7 0 7 7 0 8 0 procpl 632 1160 0 1100 6 0 6 6 0 8 0 srpgc 72 2 0 2 1 1 0 1 0 8 0 sosppl 144 3 0 3 1 0 1 1 0 8 1 sockpl 400 483 0 464 3 0 3 3 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 347 0 0 43 0 43 43 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 350 0 0 21 0 21 21 0 8 0 bufpl 280 4053 0 126 281 0 281 281 0 8 0 anonpl 16 65705 0 47708 89 16 73 81 0 124 0 amapchunkpl 152 3145 0 2853 28 16 12 19 0 158 0 amappl16 192 2094 0 1262 43 0 43 43 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 5 0 2 1 0 1 1 0 8 0 amappl13 168 163 0 158 1 0 1 1 0 8 0 amappl12 160 20 0 17 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 25 0 21 1 0 1 1 0 8 0 amappl9 136 512 0 509 1 0 1 1 0 8 0 amappl8 128 405 0 334 3 0 3 3 0 8 0 amappl7 120 115 0 102 1 0 1 1 0 8 0 amappl6 112 35 0 25 1 0 1 1 0 8 0 amappl5 104 394 0 377 1 0 1 1 0 8 0 amappl4 96 617 0 587 1 0 1 1 0 8 0 amappl3 88 131 0 122 1 0 1 1 0 8 0 amappl2 80 3048 0 2974 2 0 2 2 0 8 0 amappl1 72 23672 0 23206 23 13 10 18 0 8 0 amappl 80 1436 0 1350 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 15 0 4 1 0 1 1 0 8 0 uaddrrnd 24 509 0 492 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 509 0 492 1 0 1 1 0 8 0 vmmpekpl 168 7822 0 7779 3 0 3 3 0 8 0 vmmpepl 168 71379 0 69244 131 33 98 120 0 357 4 vmsppl 368 508 0 492 2 0 2 2 0 8 0 pdppl 4096 1025 0 985 6 0 6 6 0 8 0 pvpl 32 211645 0 190341 211 33 178 193 0 265 3 pmappl 232 508 0 492 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 290 0 9 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(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 __sanitizer_cov_trace_cmp4(a9e18,a9e19) at __sanitizer_cov_trace_cmp4+0x40 kd_curproc sys/dev/kcov.c:454 [inline] __sanitizer_cov_trace_cmp4(a9e18,a9e19) at __sanitizer_cov_trace_cmp4+0x40 trace_cmp sys/dev/kcov.c:134 [inline] __sanitizer_cov_trace_cmp4(a9e18,a9e19) at __sanitizer_cov_trace_cmp4+0x40 sys/dev/kcov.c:163 __mp_lock(ffffffff82933140) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff8000fffff8c0,ffff8000fffff938,46e861,ffffffff82428c3c,ffffffff810c3510,a6) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020e88990) at syscall+0x3dc mi_syscall sys/sys/syscall_mi.h:87 [inline] syscall(ffff800020e88990) at syscall+0x3dc sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc000049ed0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(fff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b0c500) 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(ffff800024195930) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed79828,7,fffffd807f7bf840,ffff80002419c2a0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067f79278,ffff80002419c2a0) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067f79278,ffff80002419c2a0) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067f79278,ffff80002419c2a0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067f79278,ffff80002419c2a0) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff80002419c2a0) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff80002419c2a0,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff80002419c2a0,ffff800024195bc0,ffff800024195c10) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800024195c90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024195c90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff8fd0, count: -16