login: uvm_fault(0xfffffd806e900738, 0xe7, 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(0xfffffd806e900738, 0xe7, 0, 1) -> e in_delmulti(db) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff8000230ed050, count: 0 ddb{1}> trace in_delmulti(db) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b0f900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000aef800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000aef800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000aef800) 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(ffff8000230ed230) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e8e6348,7,fffffd807f7bfc00,ffff800020e094f8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8066c3bc00,ffff800020e094f8) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8066c3bc00,ffff800020e094f8) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8066c3bc00,ffff800020e094f8) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8066c3bc00,ffff800020e094f8) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e094f8) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e094f8,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e094f8,ffff8000230ed4c0,ffff8000230ed510) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000230ed590) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ed590) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9280, count: -16 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff8000230ed000 rbx 0 rdx 0xffff800020e094f8 rcx 0 rax 0 r8 0xffffffff81636133 rt_ifa_purge+0x153 r9 0x5 r10 0x3 r11 0xc30d360f9541b04 r12 0 r13 0x3 r14 0xdb r15 0x1 rip 0xffffffff811e3b6d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230ecfa0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=281088 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e37020,0xffff800020e383b0 process=0xffff800023f32fb8 user=0xffff8000230e8000, vmspace=0xfffffd806e900738 estcpu=36, cpticks=5, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15629 254965 90727 0 7 0 syz-executor.0 15629 284326 90727 0 3 0x4000080 fsleep syz-executor.0 21831 2755 0 0 3 0x14280 nfsidl nfsio 21199 14993 0 0 3 0x14280 nfsidl nfsio 54931 9056 0 0 3 0x14280 nfsidl nfsio 32049 18409 0 0 3 0x14280 nfsidl nfsio 47825 425175 0 0 3 0x14280 nfsidl nfsio 80164 77239 0 0 3 0x14280 nfsidl nfsio 61478 183245 0 0 3 0x14280 nfsidl nfsio 13758 417039 0 0 3 0x14280 nfsidl nfsio 3741 290795 0 0 3 0x14280 nfsidl nfsio 49211 90276 0 0 3 0x14280 nfsidl nfsio 27121 227182 0 0 3 0x14280 nfsidl nfsio 78592 4594 0 0 3 0x14280 nfsidl nfsio 4142 66874 0 0 3 0x14280 nfsidl nfsio 84480 307297 0 0 3 0x14280 nfsidl nfsio 24364 139481 0 0 3 0x14280 nfsidl nfsio 9391 285098 0 0 3 0x14280 nfsidl nfsio 22483 377050 0 0 3 0x14280 nfsidl nfsio 68003 72378 0 0 3 0x14280 nfsidl nfsio 55925 372579 0 0 3 0x14280 nfsidl nfsio 48072 334080 0 0 3 0x14280 nfsidl nfsio 51077 332214 1 0 3 0x100083 ttyin getty 98759 156189 0 0 3 0x14200 bored sosplice 90727 411588 8391 0 3 0x82 nanosleep syz-executor.0 8391 472248 86625 0 3 0x82 thrsleep syz-fuzzer 8391 446386 86625 0 3 0x4000082 nanosleep syz-fuzzer 8391 322699 86625 0 2 0x4000002 syz-fuzzer 8391 80572 86625 0 3 0x4000082 thrsleep syz-fuzzer 8391 166270 86625 0 3 0x4000082 thrsleep syz-fuzzer 8391 368365 86625 0 3 0x4000082 thrsleep syz-fuzzer 8391 521210 86625 0 3 0x4000082 thrsleep syz-fuzzer 8391 358812 86625 0 2 0x4000002 syz-fuzzer 8391 50271 86625 0 3 0x4000082 thrsleep syz-fuzzer 8391 36614 86625 0 3 0x4000082 kqread syz-fuzzer 86625 492806 48970 0 3 0x10008a pause ksh 48970 384696 73532 0 3 0x92 select sshd 73532 37665 1 0 3 0x80 select sshd 49007 193242 46085 74 3 0x100092 bpf pflogd 46085 352886 1 0 3 0x80 netio pflogd 65286 455191 30338 73 3 0x100090 kqread syslogd 30338 117343 1 0 3 0x100082 netio syslogd 64751 94752 1 77 2 0x100090 dhclient 40102 403223 1 0 3 0x80 poll dhclient 15393 11441 0 0 3 0x14200 bored smr 66592 469791 0 0 2 0x14200 zerothread 3811 320131 0 0 3 0x14200 aiodoned aiodoned 18956 1608 0 0 3 0x14200 syncer update 46447 340858 0 0 3 0x14200 cleaner cleaner 58799 185902 0 0 3 0x14200 reaper reaper 81895 84115 0 0 3 0x14200 pgdaemon pagedaemon 71025 252886 0 0 3 0x14200 bored crynlk 54717 488298 0 0 3 0x14200 bored crypto 87861 242830 0 0 3 0x40014200 acpi0 acpi0 46925 128285 0 0 3 0x40014200 idle1 29368 338238 0 0 3 0x14200 bored softnet 52436 336466 0 0 2 0x14200 systqmp 24195 333406 0 0 3 0x14200 bored systq 11117 37000 0 0 3 0x40014200 bored softclock 30114 219485 0 0 3 0x40014200 idle0 1 520500 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 9487 6403K 6917K 78643K 11075 0 pcb 13 8K 8K 78643K 52 0 rtable 88 4K 6K 78643K 351 0 ifaddr 56 12K 14K 78643K 123 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 69 0 ioctlops 0 0K 4K 78643K 1564 0 iov 0 0K 16K 78643K 34 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1361 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 106 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 428 0 sigio 0 0K 0K 78643K 37 0 proc 60 63K 95K 78643K 469 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 57 0 in_multi 36 2K 2K 78643K 62 0 ether_multi 1 0K 0K 78643K 4 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 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 232 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 129 56K 71K 78643K 2350 0 UVM aobj 22 2K 3K 78643K 25 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 30 0 NDP 8 0K 0K 78643K 27 0 temp 114 3880K 3948K 78643K 5632 0 kqueue 3 4K 12K 78643K 17 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 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 51 0 19 2 0 2 2 0 8 0 unpcb 120 236 0 226 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 359 0 359 2 2 0 1 0 8 0 tcpcb 544 140 0 136 2 1 1 2 0 8 0 inpcb 296 1034 0 1027 2 0 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 9 0 2 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 ppxss 1136 4 0 4 2 1 1 1 0 8 1 pffrag 232 3 0 3 2 2 0 1 0 482 0 pffrnode 88 3 0 3 2 2 0 1 0 8 0 pffrent 40 92 0 92 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 25 0 23 1 0 1 1 0 8 0 pfstitem 24 18 0 8 1 0 1 1 0 8 0 pfstkey 112 18 0 8 1 0 1 1 0 8 0 pfstate 328 18 0 8 2 0 2 2 0 8 0 pfrule 1360 41 0 26 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 253 0 103 13 2 11 12 0 8 0 art_table 32 254 0 103 2 0 2 2 0 8 0 art_node 16 50 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 14 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 102 0 92 1 0 1 1 0 8 0 shmpl 112 22 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1937 0 529 90 1 89 89 0 8 0 ffsino 272 1937 0 529 96 1 95 95 0 8 0 nchpl 144 2730 0 1140 60 0 60 60 0 8 0 uvmvnodes 72 2079 0 0 38 0 38 38 0 8 0 vnodes 208 2079 0 0 110 0 110 110 0 8 0 namei 1024 7344 0 7344 2 1 1 1 0 8 1 percpumem 16 45 0 13 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 7 1 0 1 1 0 8 0 scxspl 192 8326 0 8326 9 7 2 7 0 8 2 plimitpl 152 36 0 28 1 0 1 1 0 8 0 sigapl 424 665 0 613 6 0 6 6 0 8 0 futexpl 56 6089 0 6088 1 0 1 1 0 8 0 knotepl 112 87 0 74 1 0 1 1 0 8 0 kqueuepl 144 57 0 55 1 0 1 1 0 8 0 pipepl 304 127 0 120 2 1 1 2 0 8 0 fdescpl 496 629 0 613 3 0 3 3 0 8 0 filepl 152 3738 0 3652 6 1 5 5 0 8 1 lockfpl 104 62 0 61 1 0 1 1 0 8 0 lockfspl 48 25 0 24 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 291 0 282 1 0 1 1 0 8 0 zombiepl 144 614 0 613 2 1 1 1 0 8 0 processpl 992 665 0 613 8 1 7 7 0 8 0 procpl 624 1546 0 1484 6 0 6 6 0 8 1 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 9 0 9 2 2 0 1 0 8 0 sockpl 400 1328 0 1309 6 2 4 5 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 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 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 212 0 0 26 0 26 26 0 8 0 mtagpl 96 32 0 0 1 0 1 1 0 8 0 mbufpl 256 290 0 0 17 0 17 17 0 8 0 bufpl 280 4260 0 135 295 0 295 295 0 8 0 anonpl 16 109672 0 93185 81 5 76 78 0 124 1 amapchunkpl 152 5857 0 5591 20 6 14 20 0 158 3 amappl16 192 2613 0 1732 54 9 45 53 0 8 0 amappl15 184 397 0 392 1 0 1 1 0 8 0 amappl14 176 23 0 20 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 12 0 7 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 416 0 407 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 353 0 322 2 0 2 2 0 8 0 amappl7 120 315 0 299 1 0 1 1 0 8 0 amappl6 112 25 0 20 1 0 1 1 0 8 0 amappl5 104 534 0 515 1 0 1 1 0 8 0 amappl4 96 492 0 464 1 0 1 1 0 8 0 amappl3 88 127 0 120 1 0 1 1 0 8 0 amappl2 80 4266 0 4189 2 0 2 2 0 8 0 amappl1 72 27399 0 26931 23 13 10 18 0 8 0 amappl 80 1810 0 1760 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 24 0 3 1 0 1 1 0 8 0 uaddrrnd 24 633 0 614 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 633 0 614 1 0 1 1 0 8 0 vmmpekpl 168 8778 0 8737 2 0 2 2 0 8 0 vmmpepl 168 86895 0 84787 124 27 97 118 0 357 2 vmsppl 368 632 0 614 2 0 2 2 0 8 0 pdppl 4096 1273 0 1231 7 1 6 6 0 8 0 pvpl 32 286810 0 266551 190 6 184 187 0 265 4 pmappl 232 632 0 614 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 280 0 12 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(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 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp4(ffffffff8292ee60,ffffffff8292ee60) at __sanitizer_cov_trace_cmp4 pageflttrap(ffff800020ecf700,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800020ecf700) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7fffff6900, count: -10 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(db) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b0f900) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000aef800) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000aef800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000aef800) 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(ffff8000230ed230) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e8e6348,7,fffffd807f7bfc00,ffff800020e094f8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8066c3bc00,ffff800020e094f8) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8066c3bc00,ffff800020e094f8) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8066c3bc00,ffff800020e094f8) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8066c3bc00,ffff800020e094f8) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e094f8) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e094f8,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e094f8,ffff8000230ed4c0,ffff8000230ed510) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000230ed590) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ed590) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9280, count: -16