uvm_fault(0xffffffff82238de8, 0xffff8000029aa000, 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(0xffffffff82238de8, 0xffff8000029aa000, 0, 1) -> e memcpy(fffffd80751554d8,ffff8000029a9f0d,0,fffffd80751554d8,e4b07fa3ca18973,ffff800020c66f58) at memcpy+0x15 end trace frame: 0xffff800020c66e60, count: 0 ddb{0}> trace memcpy(fffffd80751554d8,ffff8000029a9f0d,0,fffffd80751554d8,e4b07fa3ca18973,ffff800020c66f58) at memcpy+0x15 rtrequest(1,ffff800020c66f58,38,ffff800020c66ea0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000029a9f00,ffff800020c66f50,ffff800020c66f58,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd807534de00,fffffd8074ced018,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd8074ced018,9,fffffd807534de00,0,0,ffff800020b75080) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8074ced018,0,ffff800020c67218,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b75080,6,ffff800020c672d8,0,ffff800020c673a0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b75080,ffff800020c673b8,ffff800020c673a0) at sys_sendto+0x92 syscall(ffff800020c67450) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c67450) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,8b1866bf0d8) at Xsyscall+0x128 end of kernel end trace frame: 0x8b40460ae80, count: -10 ddb{0}> show registers rdi 0xffff8000029a90f0 rsi 0xffff8000029a9ffd rbp 0xffff800020c66d50 rbx 0xffff8000029a9f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff0f3 r8 0 r9 0x5 r10 0x13254177047fe2c5 r11 0xffff8000029a9000 r12 0xffff8000029a9000 r13 0x100 r14 0 r15 0xfffffd80751554d8 rip 0xffffffff8128fe45 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c66ce8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.0) pid=60432 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b759e0,0xffffffff82382238 process=0xffff800020b8d080 user=0xffff800020c62000, vmspace=0xfffffd807effe708 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40852 449355 5004 0 2 0 syz-executor.0 40852 110245 5004 0 2 0x4000000 syz-executor.0 *40852 60432 5004 0 7 0x4000000 syz-executor.0 5004 406782 42314 0 2 0x482 syz-executor.0 50526 148311 0 0 3 0x14200 bored sosplice 69775 163377 42314 0 7 0x2 syz-executor.1 42314 244060 57092 0 3 0x82 thrsleep syz-fuzzer 42314 118544 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 375136 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 358973 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 402246 57092 0 3 0x4000082 kqread syz-fuzzer 42314 303072 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 157289 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 253382 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 389594 57092 0 3 0x4000082 thrsleep syz-fuzzer 42314 126920 57092 0 3 0x4000082 thrsleep syz-fuzzer 57092 240671 66958 0 3 0x10008a pause ksh 66958 224702 78191 0 3 0x92 select sshd 4142 443691 1 0 3 0x100083 ttyin getty 78191 34409 1 0 3 0x80 select sshd 64441 292781 76835 74 3 0x100092 bpf pflogd 76835 159771 1 0 3 0x80 netio pflogd 30185 193746 20328 73 2 0x100090 syslogd 20328 96486 1 0 3 0x100082 netio syslogd 21374 158169 1 77 3 0x100090 poll dhclient 89869 438880 1 0 3 0x80 poll dhclient 29522 75463 0 0 3 0x14200 pgzero zerothread 46083 160328 0 0 3 0x14200 aiodoned aiodoned 41532 221937 0 0 3 0x14200 syncer update 19655 83938 0 0 3 0x14200 cleaner cleaner 53994 28692 0 0 3 0x14200 reaper reaper 90910 428882 0 0 3 0x14200 pgdaemon pagedaemon 59457 516464 0 0 3 0x14200 bored crynlk 36422 7375 0 0 3 0x14200 bored crypto 58906 445705 0 0 3 0x40014200 acpi0 acpi0 65084 332980 0 0 3 0x40014200 idle1 75806 337676 0 0 3 0x14200 bored softnet 46065 203592 0 0 3 0x14200 bored systqmp 75915 519796 0 0 3 0x14200 bored systq 84626 373753 0 0 3 0x40014200 bored softclock 65160 383843 0 0 3 0x40014200 idle0 24088 92011 0 0 3 0x14200 bored smr 1 367079 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 40852 (syz-executor.0) thread 0xffff800020b75080 (60432) exclusive rwlock netlock r = 0 (0xffffffff821fc318) 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 (0xffffffff823959b0) 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 69775 (syz-executor.1) thread 0xffff800020b15778 (163377) exclusive rrwlock inode r = 0 (0xfffffd8068df1928) 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 (0xfffffd806e3f30a0) 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 9493 6397K 6427K 78643K 10700 0 0 pcb 27 9K 11K 78643K 195 0 0 rtable 103 4K 4K 78643K 309 0 0 ifaddr 50 12K 13K 78643K 96 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1473 0 0 iov 0 0K 24K 78643K 31 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1196 75K 75K 78643K 1404 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 35 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 265 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 53 50K 71K 78643K 396 0 0 subproc 64 65538K 67586K 78643K 136 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 32 0 0 in_multi 33 2K 2K 78643K 57 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 224 0 0 pfkey data 0 0K 0K 78643K 2 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 85 20K 26K 78643K 1691 0 0 UVM aobj 14 2K 2K 78643K 16 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 9 0K 0K 78643K 27 0 0 temp 127 2369K 2438K 78643K 4004 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 280 172 0 165 1 0 1 1 0 8 0 plimitpl 152 21 0 13 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 62 0 21 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 51 0 47 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 8 0 4 1 0 1 1 0 8 0 ppxss 1128 8 0 8 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 15 0 3 1 0 1 1 0 8 0 pfstkey 112 15 0 3 1 0 1 1 0 8 0 pfstate 328 15 0 3 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 256 267 0 82 12 0 12 12 0 8 0 art_table 32 268 0 82 2 0 2 2 0 8 0 art_node 16 59 0 25 1 0 1 1 0 8 0 semapl 112 33 0 23 1 0 1 1 0 8 0 shmpl 112 14 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1903 0 477 47 0 47 47 0 8 0 ffsino 272 1903 0 477 96 0 96 96 0 8 0 nchpl 144 2483 0 845 61 0 61 61 0 8 0 uvmvnodes 72 2023 0 0 37 0 37 37 0 8 0 vnodes 200 2023 0 0 107 0 107 107 0 8 0 namei 1024 6956 0 6955 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 6730 0 6730 7 6 1 6 0 8 1 sigapl 432 458 0 443 2 0 2 2 0 8 0 futexpl 56 2931 0 2931 1 0 1 1 0 8 1 knotepl 112 128 0 109 1 0 1 1 0 8 0 kqueuepl 104 66 0 64 1 0 1 1 0 8 0 pipepl 112 314 0 291 2 0 2 2 0 8 1 fdescpl 488 459 0 443 3 0 3 3 0 8 0 filepl 152 2721 0 2616 7 0 7 7 0 8 2 lockfpl 104 110 0 110 2 1 1 1 0 8 1 lockfspl 32 181 0 181 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 96 502 0 493 1 0 1 1 0 8 0 zombiepl 144 443 0 443 1 0 1 1 0 8 1 processpl 840 475 0 443 4 0 4 4 0 8 0 procpl 600 980 0 937 5 1 4 5 0 8 0 srpgc 64 13 0 13 1 0 1 1 0 8 1 sosppl 128 6 0 6 2 1 1 1 0 8 1 sockpl 384 342 0 321 4 0 4 4 0 8 1 mcl64k 65536 511 0 0 64 0 64 64 0 8 1 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 113 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 596 0 0 36 0 36 36 0 8 0 bufpl 256 6312 0 1143 324 0 324 324 0 8 0 anonpl 16 58063 0 49119 49 5 44 46 0 125 7 amapchunkpl 152 2526 0 2438 11 2 9 9 0 158 5 amappl16 192 1822 0 1347 34 6 28 34 0 8 4 amappl15 184 95 0 91 1 0 1 1 0 8 0 amappl14 176 33 0 29 1 0 1 1 0 8 0 amappl13 168 257 0 252 1 0 1 1 0 8 0 amappl12 160 15 0 14 1 0 1 1 0 8 0 amappl11 152 21 0 6 1 0 1 1 0 8 0 amappl10 144 146 0 142 1 0 1 1 0 8 0 amappl9 136 587 0 583 1 0 1 1 0 8 0 amappl8 128 148 0 134 1 0 1 1 0 8 0 amappl7 120 35 0 31 1 0 1 1 0 8 0 amappl6 112 65 0 56 1 0 1 1 0 8 0 amappl5 104 128 0 113 1 0 1 1 0 8 0 amappl4 96 672 0 644 2 1 1 2 0 8 0 amappl3 88 124 0 118 1 0 1 1 0 8 0 amappl2 80 2933 0 2877 2 0 2 2 0 8 0 amappl1 72 19391 0 18938 26 16 10 20 0 8 0 amappl 72 1239 0 1203 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 15 0 2 1 0 1 1 0 8 0 uaddrrnd 24 459 0 443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 459 0 443 1 0 1 1 0 8 0 vmmpekpl 168 7706 0 7682 2 0 2 2 0 8 0 vmmpepl 168 56244 0 54755 89 12 77 78 0 357 9 vmsppl 360 458 0 443 2 0 2 2 0 8 0 pdppl 4096 926 0 886 6 0 6 6 0 8 0 pvpl 32 187918 0 175720 126 6 120 123 0 265 21 pmappl 224 458 0 443 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 564 0 3 17 0 17 17 0 8 0