uvm_fault(0xffffffff8225d700, 0xffff8000039a0000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff8225d700, 0xffff8000039a0000, 0, 1) -> e memcpy(fffffd807cb81a88,ffff80000399ff0d,7,fffffd807cb81a88,c04b15d9b3eb2227,ffff800020c07478) at memcpy+0x15 end trace frame: 0xffff800020c07380, count: 0 ddb{1}> trace memcpy(fffffd807cb81a88,ffff80000399ff0d,7,fffffd807cb81a88,c04b15d9b3eb2227,ffff800020c07478) at memcpy+0x15 rtrequest(1,ffff800020c07478,38,ffff800020c073c0,7) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000399ff00,ffff800020c07470,ffff800020c07478,38,7) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806f0e2600,fffffd8068937198,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd8068937198,9,fffffd806f0e2600,0,0,ffff800020b39080) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8068937198,0,ffff800020c07738,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b39080,9,ffff800020c077f8,0,ffff800020c078c0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39080,ffff800020c078d8,ffff800020c078c0) at sys_sendto+0x92 syscall(ffff800020c07970) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c07970) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(0,0,ffffffffffffffd8,0,6,253eb8cd010) at Xsyscall+0x128 end of kernel end trace frame: 0x256917ebbc0, count: -10 ddb{1}> show registers rdi 0xffff80000399f1f0 rsi 0xffff80000399fffd rbp 0xffff800020c07270 rbx 0xffff80000399ff0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff1f3 r8 0 r9 0x5 r10 0x40b518ee7a625a65 r11 0xffff80000399f100 r12 0xffff80000399f100 r13 0x100 r14 0 r15 0xfffffd807cb81a88 rip 0xffffffff8143f675 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c07208 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.1) pid=316749 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38bd0,0xffff800020b38028 process=0xffff800020b8da58 user=0xffff800020c02000, vmspace=0xfffffd807effd870 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41082 60110 9430 0 2 0 syz-executor.1 *41082 316749 9430 0 7 0x4000000 syz-executor.1 41082 350598 9430 0 7 0x4000000 syz-executor.1 11221 37403 0 0 3 0x14200 bored sosplice 9430 447518 29910 0 3 0x82 nanosleep syz-executor.1 54429 245638 29910 0 3 0x2 biowait syz-executor.0 29910 9407 87136 0 3 0x82 thrsleep syz-fuzzer 29910 506286 87136 0 3 0x4000082 nanosleep syz-fuzzer 29910 38494 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 334380 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 59179 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 264062 87136 0 3 0x4000082 kqread syz-fuzzer 29910 425053 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 99059 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 153355 87136 0 3 0x4000082 thrsleep syz-fuzzer 29910 493829 87136 0 3 0x4000082 thrsleep syz-fuzzer 87136 340174 28497 0 3 0x10008a pause ksh 28497 30534 22051 0 3 0x92 select sshd 70030 449172 1 0 3 0x100083 ttyin getty 22051 30964 1 0 3 0x80 select sshd 92049 237835 1524 74 3 0x100092 bpf pflogd 1524 377565 1 0 3 0x80 netio pflogd 29227 107665 7610 73 2 0x100090 syslogd 7610 144504 1 0 3 0x100082 netio syslogd 10843 260998 1 77 3 0x100090 poll dhclient 42000 462292 1 0 3 0x80 poll dhclient 7948 175806 0 0 3 0x14200 pgzero zerothread 69704 268027 0 0 3 0x14200 aiodoned aiodoned 89623 189017 0 0 3 0x14200 syncer update 4970 386744 0 0 3 0x14200 cleaner cleaner 94226 47734 0 0 3 0x14200 reaper reaper 61781 144837 0 0 3 0x14200 pgdaemon pagedaemon 83896 432213 0 0 3 0x14200 bored crynlk 56312 305711 0 0 3 0x14200 bored crypto 60091 150528 0 0 3 0x40014200 acpi0 acpi0 91062 114781 0 0 3 0x40014200 idle1 4651 41259 0 0 3 0x14200 bored softnet 32101 159138 0 0 3 0x14200 bored systqmp 62950 111311 0 0 3 0x14200 bored systq 16653 437512 0 0 3 0x40014200 bored softclock 9935 424923 0 0 3 0x40014200 idle0 95945 444108 0 0 3 0x14200 bored smr 1 320432 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 41082 (syz-executor.1) thread 0xffff800020b39080 (316749) exclusive rwlock netlock r = 0 (0xffffffff821d9928) 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 (0xffffffff823780b8) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/trap.c:161 #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 54429 (syz-executor.0) thread 0xffff800020b15c28 (245638) exclusive rrwlock inode r = 0 (0xfffffd807cbb5708) 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 (0xfffffd806e4c11a8) 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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9500 6401K 6415K 78643K 10716 0 0 pcb 27 9K 11K 78643K 207 0 0 rtable 106 4K 4K 78643K 334 0 0 ifaddr 53 12K 13K 78643K 93 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1474 0 0 iov 0 0K 16K 78643K 28 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1209 76K 76K 78643K 1407 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 0K 0K 78643K 26 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 261 0 0 sigio 0 0K 0K 78643K 10 0 0 proc 53 50K 71K 78643K 414 0 0 subproc 64 65538K 67586K 78643K 172 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 17 0 0 in_multi 33 2K 2K 78643K 66 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 0K 0K 78643K 2 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 219 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 83 20K 21K 78643K 1704 0 0 UVM aobj 10 2K 2K 78643K 10 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 4 0 0 NDP 10 0K 0K 78643K 28 0 0 temp 136 2369K 2439K 78643K 4051 0 0 kqueue 0 0K 0K 78643K 3 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 3 1 0 1 1 0 8 0 inpcbpl 280 153 0 146 1 0 1 1 0 8 0 plimitpl 152 31 0 23 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 70 0 29 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 52 0 48 1 0 1 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 ppxss 1128 3 0 3 2 1 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 18 0 4 1 0 1 1 0 8 0 pfstkey 112 18 0 4 1 0 1 1 0 8 0 pfstate 328 18 0 4 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 256 314 0 130 12 0 12 12 0 8 0 art_table 32 315 0 130 2 0 2 2 0 8 0 art_node 16 67 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1834 0 408 47 0 47 47 0 8 0 ffsino 272 1834 0 408 96 0 96 96 0 8 0 nchpl 144 2393 0 753 62 0 62 62 0 8 1 uvmvnodes 72 1982 0 0 37 0 37 37 0 8 0 vnodes 200 1982 0 0 105 0 105 105 0 8 0 namei 1024 6724 0 6723 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6087 0 6086 10 7 3 6 0 8 2 sigapl 432 451 0 436 2 0 2 2 0 8 0 futexpl 56 2544 0 2544 1 0 1 1 0 8 1 knotepl 112 167 0 148 1 0 1 1 0 8 0 kqueuepl 104 78 0 76 1 0 1 1 0 8 0 pipepl 112 336 0 313 2 1 1 1 0 8 0 fdescpl 488 452 0 436 3 0 3 3 0 8 0 filepl 152 2626 0 2521 5 0 5 5 0 8 0 lockfpl 104 88 0 88 2 1 1 1 0 8 1 lockfspl 32 110 0 110 2 1 1 1 0 8 1 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 394 0 385 1 0 1 1 0 8 0 zombiepl 144 436 0 436 2 1 1 1 0 8 1 processpl 840 468 0 436 4 0 4 4 0 8 0 procpl 600 987 0 944 4 0 4 4 0 8 0 srpgc 64 16 0 16 1 1 0 1 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 384 323 0 302 4 0 4 4 0 8 1 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 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 119 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 139 0 0 8 0 8 8 0 8 0 bufpl 256 6151 0 1145 313 0 313 313 0 8 0 anonpl 16 56342 0 47572 50 7 43 48 0 125 7 amapchunkpl 152 2479 0 2388 9 0 9 9 0 158 4 amappl16 192 1713 0 1256 34 10 24 34 0 8 1 amappl15 184 57 0 53 1 0 1 1 0 8 0 amappl14 176 186 0 180 2 1 1 1 0 8 0 amappl13 168 76 0 73 1 0 1 1 0 8 0 amappl12 160 105 0 103 2 1 1 1 0 8 0 amappl11 152 26 0 11 1 0 1 1 0 8 0 amappl10 144 91 0 88 1 0 1 1 0 8 0 amappl9 136 596 0 591 1 0 1 1 0 8 0 amappl8 128 151 0 136 1 0 1 1 0 8 0 amappl7 120 53 0 49 1 0 1 1 0 8 0 amappl6 112 60 0 50 1 0 1 1 0 8 0 amappl5 104 154 0 140 1 0 1 1 0 8 0 amappl4 96 629 0 600 2 1 1 2 0 8 0 amappl3 88 342 0 333 1 0 1 1 0 8 0 amappl2 80 2702 0 2647 2 0 2 2 0 8 0 amappl1 72 19501 0 19056 25 15 10 20 0 8 0 amappl 72 1252 0 1215 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 452 0 436 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 452 0 436 1 0 1 1 0 8 0 vmmpekpl 168 7856 0 7834 2 0 2 2 0 8 0 vmmpepl 168 55867 0 54405 89 12 77 80 0 357 13 vmsppl 360 451 0 436 2 0 2 2 0 8 0 pdppl 4096 912 0 872 6 0 6 6 0 8 0 pvpl 32 184422 0 172403 135 13 122 126 0 265 25 pmappl 224 451 0 436 3 2 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 463 0 3 14 0 14 14 0 8 0