uvm_fault(0xfffffd807effe730, 0xb, 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(0xfffffd807effe730, 0xb, 0, 1) -> e in_delmulti(ffffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800023efdf60, count: 0 ddb{1}> trace in_delmulti(ffffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b1ee00) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000af2800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000af2800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000af2800) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800023efe140) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807b954688,7,fffffd807f7bf7e0,ffff800023f93660) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806ca91ee8,ffff800023f93660) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806ca91ee8,ffff800023f93660) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806ca91ee8,ffff800023f93660) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806ca91ee8,ffff800023f93660) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800023f93660) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800023f93660,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800023f93660,ffff800023efe3d0,ffff800023efe420) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023efe4a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023efe4a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7220, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800023efdf10 rbx 0 rdx 0 rcx 0 rax 0xffff800023f93660 r8 0xffff800000b1ee00 r9 0xffffffff8158de33 rt_ifa_purge+0x153 r10 0x5 r11 0x5bccaea1bbe7421 r12 0 r13 0x3 r14 0xffffffffffffffff r15 0x1 rip 0xffffffff8120951d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023efdeb0 ss 0 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=125657 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800023f92028,0xffffffff828c6de0 process=0xffff800020df1ba0 user=0xffff800023ef9000, vmspace=0xfffffd807effe730 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40406 444566 42807 0 3 0x82 piperd syz-executor.0 68504 395596 0 0 3 0x14280 nfsidl nfsio 23640 425008 0 0 3 0x14280 nfsidl nfsio 20755 512024 0 0 3 0x14280 nfsidl nfsio 10431 154947 0 0 3 0x14280 nfsidl nfsio 24175 458394 0 0 3 0x14280 nfsidl nfsio 37567 455990 0 0 3 0x14280 nfsidl nfsio 43769 216913 0 0 3 0x14280 nfsidl nfsio 47861 503878 0 0 3 0x14280 nfsidl nfsio 27838 426485 0 0 3 0x14280 nfsidl nfsio 21006 345756 0 0 3 0x14280 nfsidl nfsio 70848 124545 0 0 3 0x14280 nfsidl nfsio 61004 423843 0 0 3 0x14280 nfsidl nfsio 55655 247694 0 0 3 0x14280 nfsidl nfsio 43725 386964 0 0 3 0x14280 nfsidl nfsio 96118 303855 0 0 3 0x14280 nfsidl nfsio 55336 482546 0 0 3 0x14280 nfsidl nfsio 7035 31719 0 0 3 0x14280 nfsidl nfsio 17429 478283 0 0 3 0x14280 nfsidl nfsio 41944 371149 0 0 3 0x14280 nfsidl nfsio 51278 199020 0 0 3 0x14280 nfsidl nfsio 12821 351244 0 0 3 0x14200 bored sosplice 42807 400112 23160 0 3 0x82 thrsleep syz-fuzzer 42807 403827 23160 0 3 0x4000082 nanosleep syz-fuzzer 42807 290643 23160 0 3 0x4000082 thrsleep syz-fuzzer 42807 120253 23160 0 7 0x4000002 syz-fuzzer 42807 22697 23160 0 2 0x4000002 syz-fuzzer 42807 299779 23160 0 3 0x4000082 thrsleep syz-fuzzer 42807 463244 23160 0 3 0x4000082 thrsleep syz-fuzzer 42807 46446 23160 0 3 0x4000082 kqread syz-fuzzer 23160 283461 73649 0 3 0x10008a pause ksh 73649 341733 26702 0 3 0x92 select sshd 8950 323636 1 0 3 0x100083 ttyin getty 26702 198714 1 0 3 0x80 select sshd 85869 422269 14007 74 3 0x100092 bpf pflogd 14007 471047 1 0 3 0x80 netio pflogd 10606 428911 36016 73 3 0x100090 kqread syslogd 36016 306071 1 0 3 0x100082 netio syslogd 24645 128533 1 77 3 0x100090 poll dhclient 28163 203080 1 0 3 0x80 poll dhclient 52883 519626 0 0 3 0x14200 bored smr 19286 316068 0 0 3 0x14200 pgzero zerothread 68039 307870 0 0 3 0x14200 aiodoned aiodoned 34849 508141 0 0 3 0x14200 syncer update 52794 3124 0 0 3 0x14200 cleaner cleaner 63372 225525 0 0 3 0x14200 reaper reaper 10900 353334 0 0 3 0x14200 pgdaemon pagedaemon 25301 346465 0 0 3 0x14200 bored crynlk 55871 243346 0 0 3 0x14200 bored crypto 90585 220211 0 0 3 0x40014200 acpi0 acpi0 52539 259874 0 0 3 0x40014200 idle1 21757 466410 0 0 3 0x14200 bored softnet 53856 288560 0 0 3 0x14200 bored systqmp 20362 138498 0 0 3 0x14200 bored systq 58561 392419 0 0 3 0x40014200 bored softclock 46072 255461 0 0 3 0x40014200 idle0 1 359533 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 9548 6442K 7342K 78643K 11859 0 pcb 13 8K 8K 78643K 91 0 rtable 106 7K 10K 78643K 491 0 ifaddr 106 20K 21K 78643K 171 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1578 0 iov 0 0K 16K 78643K 74 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1600 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 142 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 743 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 83K 78643K 589 0 subproc 23 1K 2K 78643K 70 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 184 0 in_multi 77 3K 3K 78643K 135 0 ether_multi 1 0K 0K 78643K 11 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 272 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 31K 36K 78643K 3349 0 UVM aobj 30 6K 6K 78643K 34 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 66 0 NDP 16 0K 0K 78643K 31 0 temp 156 3908K 3972K 78643K 12574 0 kqueue 3 4K 9K 78643K 23 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 16 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 47 0 45 1 0 1 1 0 8 0 rtentry 112 88 0 53 2 0 2 2 0 8 0 unpcb 120 1391 0 1381 2 1 1 2 0 8 0 syncache 272 11 0 11 4 4 0 1 0 8 0 tcpqe 32 1245 0 1245 1 1 0 1 0 8 0 tcpcb 592 620 0 615 8 7 1 3 0 8 0 inpcb 296 1127 0 1120 4 3 1 2 0 8 0 nd6 48 13 0 8 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 8 0 8 4 3 1 1 0 482 1 pffrnode 88 8 0 8 4 3 1 1 0 8 1 pffrent 40 275 0 275 4 3 1 1 0 8 1 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 47 0 40 3 2 1 2 0 8 0 pftag 88 2 0 2 1 1 0 1 0 8 0 pfstitem 24 69 0 50 1 0 1 1 0 8 0 pfstkey 112 71 0 52 2 0 2 2 0 8 0 pfstate 328 70 0 51 4 1 3 4 0 8 0 pfrule 1360 40 0 24 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 377 0 216 14 3 11 12 0 8 0 art_table 32 378 0 216 2 0 2 2 0 8 0 art_node 16 87 0 58 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 8 3 2 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 136 0 126 1 0 1 1 0 8 0 shmpl 112 31 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2441 0 1046 88 0 88 88 0 8 0 ffsino 272 2441 0 1046 94 0 94 94 0 8 0 nchpl 144 3959 0 2378 60 0 60 60 0 8 0 uvmvnodes 72 2796 0 0 51 0 51 51 0 8 0 vnodes 208 2796 0 0 148 0 148 148 0 8 0 namei 1024 10929 0 10929 3 2 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vmpool 560 6 0 6 2 2 0 1 0 8 0 pfiaddrpl 120 17 0 10 2 1 1 1 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 200 11071 0 11071 11 10 1 7 0 8 1 plimitpl 152 53 0 45 1 0 1 1 0 8 0 sigapl 424 973 0 922 6 0 6 6 0 8 0 futexpl 56 16319 0 16319 3 2 1 1 0 8 1 knotepl 112 107 0 93 1 0 1 1 0 8 0 kqueuepl 152 68 0 66 1 0 1 1 0 8 0 pipepl 304 168 0 160 2 0 2 2 0 8 0 fdescpl 496 937 0 922 3 0 3 3 0 8 0 filepl 152 6427 0 6340 10 6 4 6 0 8 0 lockfpl 104 152 0 151 1 0 1 1 0 8 0 lockfspl 48 60 0 59 1 0 1 1 0 8 0 sessionpl 120 20 0 9 1 0 1 1 0 8 0 pgrppl 48 34 0 23 1 0 1 1 0 8 0 ucredpl 96 416 0 407 1 0 1 1 0 8 0 zombiepl 144 923 0 922 1 0 1 1 0 8 0 processpl 1008 973 0 922 7 0 7 7 0 8 0 procpl 632 2397 0 2339 6 0 6 6 0 8 0 sosppl 144 12 0 12 5 5 0 1 0 8 0 sockpl 400 2579 0 2560 11 8 3 6 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 239 0 0 29 0 29 29 0 8 0 mtagpl 96 97 0 0 2 0 2 2 0 8 0 mbufpl 256 415 0 0 22 0 22 22 0 8 0 bufpl 280 4779 0 143 332 0 332 332 0 8 0 anonpl 16 117413 0 99062 108 28 80 88 0 124 0 amapchunkpl 152 5991 0 5677 33 20 13 18 0 158 0 amappl16 192 3747 0 2877 59 15 44 56 0 8 0 amappl15 184 320 0 318 1 0 1 1 0 8 0 amappl14 176 5 0 4 1 0 1 1 0 8 0 amappl13 168 180 0 176 1 0 1 1 0 8 0 amappl12 160 174 0 168 1 0 1 1 0 8 0 amappl11 152 285 0 270 1 0 1 1 0 8 0 amappl10 144 335 0 331 1 0 1 1 0 8 0 amappl9 136 365 0 363 1 0 1 1 0 8 0 amappl8 128 453 0 379 3 0 3 3 0 8 0 amappl7 120 448 0 435 1 0 1 1 0 8 0 amappl6 112 258 0 250 1 0 1 1 0 8 0 amappl5 104 823 0 807 1 0 1 1 0 8 0 amappl4 96 513 0 487 1 0 1 1 0 8 0 amappl3 88 155 0 146 1 0 1 1 0 8 0 amappl2 80 6548 0 6477 2 0 2 2 0 8 0 amappl1 72 36716 0 36267 23 12 11 18 0 8 0 amappl 80 2720 0 2631 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 33 0 4 1 0 1 1 0 8 0 uaddrrnd 24 943 0 928 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 943 0 928 1 0 1 1 0 8 0 vmmpekpl 168 10454 0 10417 3 1 2 3 0 8 0 vmmpepl 168 127696 0 125628 178 81 97 130 0 357 0 vmsppl 368 942 0 928 2 0 2 2 0 8 0 pdppl 4096 1893 0 1856 6 1 5 6 0 8 0 pvpl 32 342913 0 321342 249 63 186 208 0 265 0 pmappl 232 942 0 928 4 3 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 290 0 21 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(ffffffff82738ff0) 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(ffffffff8293cd60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8293cd60) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff8000fffff3d0,ffff8000fffff430,c00003cf38,ffffffff82433039,ffffffff81b42a30,8e) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff800020e84000) at syscall+0x397 mi_syscall sys/sys/syscall_mi.h:81 [inline] syscall(ffff800020e84000) at syscall+0x397 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00003cf50, count: -7 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(ffff800000b1ee00) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000af2800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000af2800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000af2800) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800023efe140) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807b954688,7,fffffd807f7bf7e0,ffff800023f93660) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806ca91ee8,ffff800023f93660) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806ca91ee8,ffff800023f93660) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806ca91ee8,ffff800023f93660) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806ca91ee8,ffff800023f93660) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800023f93660) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800023f93660,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800023f93660,ffff800023efe3d0,ffff800023efe420) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800023efe4a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023efe4a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7220, count: -16