login: uvm_fault(0xffffffff82556258, 0xffff800000aef000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82556258, 0xffff800000aef000, 0, 1) -> e memcpy(fffffd8068ef2700,18,100,ffff800000aeef78,2,fffffd8068ef2700) at memcpy+0x15 end trace frame: 0xffff800021b7f0c0, count: 0 ddb{0}> trace memcpy(fffffd8068ef2700,18,100,ffff800000aeef78,2,fffffd8068ef2700) at memcpy+0x15 rtm_msg1(d,ffff800021b7f0d8) at rtm_msg1+0x1b2 sys/net/rtsock.c:1421 rtm_addr(d,ffff800000aeef00) at rtm_addr+0x9b sys/net/rtsock.c:1609 rt_ifa_del(ffff800000aeef00,200404,ffff800000aeef58,0) at rt_ifa_del+0x422 sys/net/route.c:1196 rt_ifa_dellocal(ffff800000aeef00) at rt_ifa_dellocal+0x149 sys/net/route.c:1294 in_ifinit(ffff800000a91000,ffff800000aeef00,ffff800021b7f620,0) at in_ifinit+0xcc sys/netinet/in.c:584 in_ioctl_change_ifaddr(8040691a,ffff800021b7f610,ffff800000a91000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800021b7f610,ffff800000a91000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd8064b19920,8040691a,ffff800021b7f610,ffff800020abf8c8) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020abf8c8,ffff800021b7f728,ffff800021b7f770) at sys_ioctl+0x5b9 syscall(ffff800021b7f7f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021b7f7f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,760ef4e5010) at Xsyscall+0x128 end of kernel end trace frame: 0x7639f9e1c30, count: -12 ddb{0}> show registers rdi 0xfffffd8066932730 rsi 0xffff800000aef000 rbp 0xffff800021b7f050 rbx 0 rdx 0x88 rcx 0xf rax 0x7d8065e43730 r8 0x2 r9 0x5 r10 0x11336da1f9973c83 r11 0xfffffd8066932720 r12 0x88 r13 0x88 r14 0xffff800000aeeff0 r15 0xfffffd8066932700 rip 0xffffffff8150ce35 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800021b7ef88 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=43519 stat=onproc flags process=0 proc=4000000 pri=67, usrpri=67, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe290,0xffffffff8262fc50 process=0xffff800020adca80 user=0xffff800021b7a000, vmspace=0xfffffd807f00cb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6062 113222 36597 0 3 0x80 fsleep syz-executor.1 * 6062 43519 36597 0 7 0x4000000 syz-executor.1 48838 147836 1 0 3 0x100083 ttyin getty 36597 489098 94951 0 2 0x482 syz-executor.1 19734 123679 94951 0 2 0x2 syz-executor.0 41327 405230 0 0 3 0x14200 bored sosplice 94951 24486 50330 0 3 0x82 thrsleep syz-fuzzer 94951 157739 50330 0 2 0x4000482 syz-fuzzer 94951 267547 50330 0 3 0x4000082 thrsleep syz-fuzzer 94951 52601 50330 0 3 0x4000082 nanosleep syz-fuzzer 94951 114994 50330 0 3 0x4000082 thrsleep syz-fuzzer 94951 346558 50330 0 3 0x4000082 kqread syz-fuzzer 94951 340189 50330 0 3 0x4000082 thrsleep syz-fuzzer 94951 261044 50330 0 3 0x4000082 thrsleep syz-fuzzer 94951 134375 50330 0 3 0x4000082 thrsleep syz-fuzzer 94951 419733 50330 0 3 0x4000082 thrsleep syz-fuzzer 50330 335020 66495 0 3 0x10008a pause ksh 66495 292577 22901 0 3 0x92 select sshd 22901 212111 1 0 3 0x80 select sshd 72240 276246 75202 74 3 0x100092 bpf pflogd 75202 391739 1 0 3 0x80 netio pflogd 85201 240327 86876 73 2 0x100090 syslogd 86876 407599 1 0 3 0x100082 netio syslogd 84575 102748 1 77 3 0x100090 poll dhclient 89142 111708 1 0 3 0x80 poll dhclient 89266 73416 0 0 3 0x14200 pgzero zerothread 49063 258218 0 0 3 0x14200 aiodoned aiodoned 56328 217538 0 0 3 0x14200 syncer update 85718 200460 0 0 3 0x14200 cleaner cleaner 49637 432142 0 0 3 0x14200 reaper reaper 34465 292270 0 0 3 0x14200 pgdaemon pagedaemon 74355 478972 0 0 3 0x14200 bored crynlk 52396 466734 0 0 3 0x14200 bored crypto 40393 516525 0 0 3 0x40014200 acpi0 acpi0 94921 239994 0 0 3 0x40014200 idle1 68088 166423 0 0 3 0x14200 bored softnet 98705 523456 0 0 7 0x14200 systqmp 23799 469892 0 0 3 0x14200 bored systq 24203 397366 0 0 3 0x40014200 bored softclock 65536 148806 0 0 3 0x40014200 idle0 24774 17678 0 0 3 0x14200 bored smr 1 66480 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 6062 (syz-executor.1) thread 0xffff800020abf8c8 (43519) exclusive rwlock netlock r = 0 (0xffffffff824e7f58) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 in_ioctl_change_ifaddr+0x3f #2 in_ioctl+0x205 sys/netinet/in.c:234 #3 ifioctl+0xb64 sys/net/if.c:2202 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82663928) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 Process 19734 (syz-executor.0) thread 0xffff800020abe508 (123679) exclusive rrwlock inode r = 0 (0xfffffd806e3ab3c8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:562 #5 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1323 #8 ufs_lookup+0x14b4 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:91 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:567 #11 namei+0x62c sys/kern/vfs_lookup.c:248 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e111f78) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:562 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:418 #6 namei+0x62c sys/kern/vfs_lookup.c:248 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9548 6435K 7857K 78643K 15006 0 0 pcb 13 8K 8K 78643K 186 0 0 rtable 109 4K 5K 78643K 556 0 0 ifaddr 68 14K 15K 78643K 163 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1509 0 0 iov 0 0K 16K 78643K 108 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 2695 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 19 0 0 VM map 2 1K 1K 78643K 4 0 0 sem 12 0K 0K 78643K 285 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 1158 0 0 sigio 0 0K 0K 78643K 13 0 0 proc 61 63K 95K 78643K 680 0 0 subproc 32 2K 2K 78643K 102 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 103 0 0 in_multi 33 2K 2K 78643K 131 0 0 ether_multi 1 0K 0K 78643K 13 0 0 mrt 1 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 321 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 105 22K 30K 78643K 4783 0 0 UVM aobj 63 3K 3K 78643K 66 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 288 0 0 NDP 15 0K 0K 78643K 50 0 0 temp 194 3556K 3630K 78643K 20202 0 0 kqueue 0 0K 0K 78643K 20 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 14 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 89 0 87 1 0 1 1 0 8 0 rtentry 112 90 0 48 2 0 2 2 0 8 0 unpcb 120 570 0 556 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 4950 0 4950 1 1 0 1 0 8 0 tcpcb 544 914 0 910 1 0 1 1 0 8 0 inpcb 280 2023 0 2015 4 2 2 2 0 8 1 rttmr 72 3 0 3 1 1 0 1 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 ppxss 1128 13 0 13 5 5 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 6 0 6 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 pfstitem 24 40 0 17 1 0 1 1 0 8 0 pfstkey 112 40 0 17 1 0 1 1 0 8 0 pfstate 328 40 0 17 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 419 0 200 15 1 14 15 0 8 0 art_table 32 420 0 200 2 0 2 2 0 8 0 art_node 16 87 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 42 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 281 0 271 1 0 1 1 0 8 0 shmpl 112 64 0 3 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3192 0 1793 46 0 46 46 0 8 0 ffsino 272 3192 0 1793 94 0 94 94 0 8 0 nchpl 144 5167 0 3559 61 0 61 61 0 8 0 uvmvnodes 72 4382 0 0 80 0 80 80 0 8 0 vnodes 208 4382 0 0 231 0 231 231 0 8 0 namei 1024 17224 0 17224 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vmpool 552 2 0 2 1 1 0 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 14373 0 14373 14 13 1 7 0 8 1 plimitpl 152 107 0 99 1 0 1 1 0 8 0 sigapl 432 1348 0 1333 3 1 2 3 0 8 0 futexpl 56 22477 0 22476 1 0 1 1 0 8 0 knotepl 112 381 0 362 2 1 1 2 0 8 0 kqueuepl 104 365 0 363 1 0 1 1 0 8 0 pipepl 112 698 0 679 3 1 2 2 0 8 1 fdescpl 488 1349 0 1333 3 0 3 3 0 8 0 filepl 152 10862 0 10761 8 3 5 6 0 8 1 lockfpl 104 373 0 372 1 0 1 1 0 8 0 lockfspl 48 139 0 138 1 0 1 1 0 8 0 sessionpl 112 24 0 13 1 0 1 1 0 8 0 pgrppl 48 40 0 29 1 0 1 1 0 8 0 ucredpl 96 1611 0 1601 1 0 1 1 0 8 0 zombiepl 144 1333 0 1333 2 1 1 1 0 8 1 processpl 896 1365 0 1333 4 0 4 4 0 8 0 procpl 632 3831 0 3789 5 0 5 5 0 8 1 srpgc 64 8 0 8 4 4 0 1 0 8 0 sosppl 128 8 0 8 4 3 1 1 0 8 1 sockpl 384 2711 0 2687 8 3 5 5 0 8 2 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 15 0 0 2 0 2 2 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 135 0 0 16 0 16 16 0 8 0 mtagpl 80 66 0 0 2 0 2 2 0 8 0 mbufpl 256 221 0 0 11 0 11 11 0 8 0 bufpl 256 11619 0 4571 441 0 441 441 0 8 0 anonpl 16 138766 0 124400 82 21 61 74 0 124 1 amapchunkpl 152 7941 0 7835 13 8 5 10 0 158 0 amappl16 192 6426 0 5623 62 20 42 52 0 8 1 amappl14 176 97 0 95 1 0 1 1 0 8 0 amappl13 168 127 0 127 1 1 0 1 0 8 0 amappl12 160 391 0 390 3 2 1 1 0 8 0 amappl11 152 204 0 185 1 0 1 1 0 8 0 amappl10 144 41 0 35 1 0 1 1 0 8 0 amappl9 136 1072 0 1065 1 0 1 1 0 8 0 amappl8 128 600 0 576 1 0 1 1 0 8 0 amappl7 120 56 0 50 1 0 1 1 0 8 0 amappl6 112 202 0 190 1 0 1 1 0 8 0 amappl5 104 542 0 528 1 0 1 1 0 8 0 amappl4 96 1706 0 1674 1 0 1 1 0 8 0 amappl3 88 241 0 236 1 0 1 1 0 8 0 amappl2 80 9635 0 9563 3 1 2 3 0 8 0 amappl1 72 39350 0 38920 26 16 10 20 0 8 0 amappl 80 4132 0 4095 1 0 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 65 0 3 2 0 2 2 0 8 0 uaddrrnd 24 1351 0 1333 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1351 0 1333 1 0 1 1 0 8 0 vmmpekpl 168 13871 0 13836 2 0 2 2 0 8 0 vmmpepl 168 171043 0 169117 164 59 105 118 0 357 15 vmsppl 368 1348 0 1333 2 0 2 2 0 8 0 pdppl 4096 2709 0 2670 7 1 6 6 0 8 0 pvpl 32 392830 0 375294 205 48 157 178 0 265 13 pmappl 232 1350 0 1335 3 2 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 603 0 6 18 0 18 18 0 8 0