uvm_fault(0xffffffff8223b348, 0xffff8000029a0000, 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(0xffffffff8223b348, 0xffff8000029a0000, 0, 1) -> e memcpy(fffffd807d1753f8,ffff80000299ff0d,7,fffffd807d1753f8,fa11bdb9f5f4ab38,ffff800020c15038) at memcpy+0x15 end trace frame: 0xffff800020c14f40, count: 0 ddb{0}> trace memcpy(fffffd807d1753f8,ffff80000299ff0d,7,fffffd807d1753f8,fa11bdb9f5f4ab38,ffff800020c15038) at memcpy+0x15 rtrequest(1,ffff800020c15038,38,ffff800020c14f80,7) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000299ff00,ffff800020c15030,ffff800020c15038,38,7) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806f2c5e00,fffffd807bdb4a98,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd807bdb4a98,9,fffffd806f2c5e00,0,0,ffff800020b9a270) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd807bdb4a98,0,ffff800020c152f8,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b9a270,4,ffff800020c153b8,0,ffff800020c15480) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b9a270,ffff800020c15498,ffff800020c15480) at sys_sendto+0x92 syscall(ffff800020c15530) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c15530) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,8a0a4cd1010) at Xsyscall+0x128 end of kernel end trace frame: 0x8a2f5d42980, count: -10 ddb{0}> show registers rdi 0xffff80000299f0f0 rsi 0xffff80000299fffd rbp 0xffff800020c14e30 rbx 0xffff80000299ff0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff0f3 r8 0 r9 0x5 r10 0x72b1a1d2317c0e8e r11 0xffff80000299f000 r12 0xffff80000299f000 r13 0x100 r14 0 r15 0xfffffd807d1753f8 rip 0xffffffff816fc665 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c14dc8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=275041 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b9ae28,0xffffffff8237cfc8 process=0xffff800020b8da58 user=0xffff800020c10000, vmspace=0xfffffd807effd438 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20111 283884 59354 0 7 0 syz-executor.1 *20111 275041 59354 0 7 0x4000000 syz-executor.1 95458 373385 29966 0 2 0x2 syz-executor.0 9062 4076 0 0 3 0x14200 bored sosplice 59354 336001 29966 0 2 0x482 syz-executor.1 29966 61312 91516 0 3 0x82 thrsleep syz-fuzzer 29966 92269 91516 0 3 0x4000082 nanosleep syz-fuzzer 29966 487347 91516 0 3 0x4000082 thrsleep syz-fuzzer 29966 493514 91516 0 3 0x4000082 thrsleep syz-fuzzer 29966 200947 91516 0 3 0x4000082 kqread syz-fuzzer 29966 233962 91516 0 3 0x4000082 thrsleep syz-fuzzer 29966 401902 91516 0 3 0x4000082 nanosleep syz-fuzzer 29966 130116 91516 0 3 0x4000082 thrsleep syz-fuzzer 29966 329914 91516 0 3 0x4000082 thrsleep syz-fuzzer 29966 398797 91516 0 3 0x4000082 thrsleep syz-fuzzer 91516 52686 49074 0 3 0x10008a pause ksh 49074 341446 3794 0 3 0x92 select sshd 24224 103775 1 0 3 0x100083 ttyin getty 3794 260771 1 0 3 0x80 select sshd 22414 108215 63085 74 3 0x100092 bpf pflogd 63085 334872 1 0 3 0x80 netio pflogd 23492 355523 78845 73 2 0x100090 syslogd 78845 495167 1 0 3 0x100082 netio syslogd 19185 331402 1 77 3 0x100090 poll dhclient 65924 443808 1 0 3 0x80 poll dhclient 51165 521407 0 0 3 0x14200 pgzero zerothread 37173 3657 0 0 3 0x14200 aiodoned aiodoned 71711 391087 0 0 3 0x14200 syncer update 46806 318256 0 0 3 0x14200 cleaner cleaner 83898 159124 0 0 3 0x14200 reaper reaper 84423 152604 0 0 3 0x14200 pgdaemon pagedaemon 51810 355665 0 0 3 0x14200 bored crynlk 20408 223816 0 0 3 0x14200 bored crypto 25740 363378 0 0 3 0x40014200 acpi0 acpi0 96080 350034 0 0 3 0x40014200 idle1 29066 320003 0 0 3 0x14200 bored softnet 80289 89656 0 0 3 0x14200 bored systqmp 56750 89721 0 0 3 0x14200 bored systq 53210 37271 0 0 3 0x40014200 bored softclock 56548 263434 0 0 3 0x40014200 idle0 97336 428072 0 0 3 0x14200 bored smr 1 385802 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 20111 (syz-executor.1) thread 0xffff800020b9a270 (275041) exclusive rwlock netlock r = 0 (0xffffffff821cd098) locked @ /syzkaller/managers/multicore/kernel/sys/net/rtsock.c:883 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 rtm_output+0x6b0 sys/net/rtsock.c:884 #2 route_output+0x79b sys/net/rtsock.c:806 #3 route_usrreq+0x35d sys/net/rtsock.c:271 #4 sosend+0x6eb sys/kern/uipc_socket.c:513 #5 sendit+0x590 sys/kern/uipc_syscalls.c:662 #6 sys_sendto+0x92 #7 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #7 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82394290) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/softintr.c:87 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 solock+0x7e sys/kern/uipc_socket2.c:292 #2 sosend+0x586 sys/kern/uipc_socket.c:501 #3 sendit+0x590 sys/kern/uipc_syscalls.c:662 #4 sys_sendto+0x92 #5 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #5 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #6 Xsyscall+0x128 Process 95458 (syz-executor.0) thread 0xffff800020b9a018 (373385) exclusive rrwlock inode r = 0 (0xfffffd806e1611b8) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_ihash.c:140 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280 #2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410 #3 ufs_ihashins+0x6d sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x143 sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0x10f sys/ufs/ufs/ufs_vnops.c:1164 #7 VOP_MKDIR+0x76 sys/kern/vfs_vops.c:449 #8 domkdirat+0x12d sys/kern/vfs_syscalls.c:2881 #9 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #9 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e598f80) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280 #2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410 #3 VOP_LOCK+0x57 sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:549 #5 vfs_lookup+0xf5 sys/kern/vfs_lookup.c:387 #6 namei+0x4b2 sys/kern/vfs_lookup.c:224 #7 domkdirat+0x81 sys/kern/vfs_syscalls.c:2866 #8 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #8 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9485 10501K 10517K 78643K 10686 0 0 pcb 27 9K 11K 78643K 197 0 0 rtable 106 4K 4K 78643K 334 0 0 ifaddr 47 12K 12K 78643K 101 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1475 0 0 iov 0 0K 16K 78643K 36 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1203 75K 76K 78643K 1384 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 6 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 62 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 275 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 53 50K 71K 78643K 388 0 0 subproc 64 65538K 67586K 78643K 138 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 38 0 0 in_multi 33 2K 2K 78643K 63 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 222 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 87 21K 25K 78643K 1724 0 0 UVM aobj 19 2K 2K 78643K 25 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 14 0 0 NDP 8 0K 0K 78643K 29 0 0 temp 128 2370K 2495K 78643K 4035 0 0 kqueue 0 0K 0K 78643K 2 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 6 0 2 1 0 1 1 0 8 0 inpcbpl 280 152 0 145 1 0 1 1 0 8 0 plimitpl 152 26 0 18 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 61 0 20 2 0 2 2 0 8 0 syncache 264 4 0 4 2 2 0 1 0 8 0 tcpqe 32 13 0 13 1 1 0 1 0 8 0 tcpcb 544 42 0 38 1 0 1 1 0 8 0 nd6 48 8 0 4 1 0 1 1 0 8 0 ppxss 1128 6 0 6 1 0 1 1 0 8 1 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 19 0 2 1 0 1 1 0 8 0 pfstkey 112 19 0 2 1 0 1 1 0 8 0 pfstate 328 19 0 2 2 0 2 2 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 256 269 0 82 12 0 12 12 0 8 0 art_table 32 270 0 82 2 0 2 2 0 8 0 art_node 16 58 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 58 0 48 1 0 1 1 0 8 0 shmpl 112 23 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1898 0 481 46 0 46 46 0 8 0 ffsino 272 1898 0 481 95 0 95 95 0 8 0 nchpl 144 2487 0 851 61 0 61 61 0 8 0 uvmvnodes 72 2006 0 0 37 0 37 37 0 8 0 vnodes 200 2006 0 0 106 0 106 106 0 8 0 namei 1024 7072 0 7071 3 2 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 7033 0 7033 13 10 3 6 0 8 3 sigapl 432 468 0 453 2 0 2 2 0 8 0 futexpl 56 3398 0 3398 1 0 1 1 0 8 1 knotepl 112 157 0 138 1 0 1 1 0 8 0 kqueuepl 104 82 0 80 1 0 1 1 0 8 0 pipepl 112 378 0 359 4 3 1 2 0 8 0 fdescpl 488 469 0 453 3 0 3 3 0 8 0 filepl 152 2889 0 2788 7 2 5 7 0 8 1 lockfpl 104 98 0 98 2 1 1 1 0 8 1 lockfspl 32 110 0 110 2 1 1 1 0 8 1 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 534 0 525 1 0 1 1 0 8 0 zombiepl 144 453 0 453 3 2 1 1 0 8 1 processpl 840 485 0 453 4 0 4 4 0 8 0 procpl 600 1031 0 989 4 0 4 4 0 8 0 srpgc 64 12 0 12 2 1 1 1 0 8 1 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 384 316 0 295 4 1 3 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 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 135 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 164 0 0 9 0 9 9 0 8 0 bufpl 256 6578 0 1143 340 0 340 340 0 8 0 anonpl 16 55026 0 47443 45 3 42 42 0 125 5 amapchunkpl 152 2454 0 2365 9 0 9 9 0 158 5 amappl16 192 1691 0 1204 26 0 26 26 0 8 1 amappl15 184 214 0 208 1 0 1 1 0 8 0 amappl14 176 54 0 51 3 2 1 1 0 8 0 amappl13 168 27 0 24 1 0 1 1 0 8 0 amappl12 160 25 0 23 2 1 1 1 0 8 0 amappl11 152 63 0 48 1 0 1 1 0 8 0 amappl10 144 67 0 64 1 0 1 1 0 8 0 amappl9 136 657 0 653 1 0 1 1 0 8 0 amappl8 128 219 0 203 1 0 1 1 0 8 0 amappl7 120 34 0 29 1 0 1 1 0 8 0 amappl6 112 61 0 54 1 0 1 1 0 8 0 amappl5 104 142 0 127 1 0 1 1 0 8 0 amappl4 96 672 0 644 2 1 1 2 0 8 0 amappl3 88 142 0 137 1 0 1 1 0 8 0 amappl2 80 3016 0 2959 2 0 2 2 0 8 0 amappl1 72 19882 0 19436 26 16 10 20 0 8 0 amappl 72 1279 0 1243 1 0 1 1 0 75 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 24 0 6 1 0 1 1 0 8 0 uaddrrnd 24 469 0 453 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 469 0 453 1 0 1 1 0 8 0 vmmpekpl 168 7903 0 7879 2 0 2 2 0 8 0 vmmpepl 168 57225 0 55733 107 24 83 83 0 357 18 vmsppl 360 468 0 453 2 0 2 2 0 8 0 pdppl 4096 946 0 906 6 0 6 6 0 8 0 pvpl 32 186132 0 175310 127 12 115 115 0 265 14 pmappl 224 468 0 453 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 493 0 5 14 0 14 14 0 8 0