uvm_fault(0xffffffff823168f0, 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(0xffffffff823168f0, 0xffff8000029aa000, 0, 1) -> e memcpy(fffffd807ce444d8,ffff8000029a9f0d,0,fffffd807ce444d8,d70020e8c4cf938c,ffff800020bfabc8) at memcpy+0x15 end trace frame: 0xffff800020bfaad0, count: 0 ddb{0}> trace memcpy(fffffd807ce444d8,ffff8000029a9f0d,0,fffffd807ce444d8,d70020e8c4cf938c,ffff800020bfabc8) at memcpy+0x15 rtrequest(1,ffff800020bfabc8,38,ffff800020bfab10,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000029a9f00,ffff800020bfabc0,ffff800020bfabc8,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd807cdb8500,fffffd806f735600,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f735600,9,fffffd807cdb8500,0,0,ffff800020b38978) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f735600,0,ffff800020bfae88,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b38978,3,ffff800020bfaf48,0,ffff800020bfb010) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b38978,ffff800020bfb028,ffff800020bfb010) at sys_sendto+0x92 syscall(ffff800020bfb0c0) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bfb0c0) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,c826ac08010) at Xsyscall+0x128 end of kernel end trace frame: 0xc854d99b180, count: -10 ddb{0}> show registers rdi 0xffff8000029a9df0 rsi 0xffff8000029a9ffd rbp 0xffff800020bfa9c0 rbx 0xffff8000029a9f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffffdf3 r8 0 r9 0x5 r10 0xe328da8cfbcef6d3 r11 0xffff8000029a9d00 r12 0xffff8000029a9d00 r13 0x100 r14 0 r15 0xfffffd807ce444d8 rip 0xffffffff811afcf5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020bfa958 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=490234 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38e28,0xffff800020b39798 process=0xffff800020b8c360 user=0xffff800020bf6000, vmspace=0xfffffd807effe870 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60926 179295 47814 0 2 0 syz-executor.0 60926 193498 47814 0 2 0x4000000 syz-executor.0 50525 473840 26538 0 2 0 syz-executor.1 *50525 490234 26538 0 7 0x4000000 syz-executor.1 47814 40007 25904 0 7 0x482 syz-executor.0 26538 162583 25904 0 2 0x482 syz-executor.1 59706 290232 0 0 3 0x14200 bored sosplice 25904 252261 59501 0 3 0x82 thrsleep syz-fuzzer 25904 61808 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 307788 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 60039 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 225197 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 314770 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 73851 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 379679 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 351477 59501 0 3 0x4000082 thrsleep syz-fuzzer 25904 296771 59501 0 3 0x4000082 kqread syz-fuzzer 59501 382114 57672 0 3 0x10008a pause ksh 57672 4584 44935 0 3 0x92 select sshd 65446 313846 1 0 3 0x100083 ttyin getty 44935 259000 1 0 3 0x80 select sshd 50243 271883 96775 74 3 0x100092 bpf pflogd 96775 121917 1 0 3 0x80 netio pflogd 54308 22488 55538 73 2 0x100090 syslogd 55538 476387 1 0 3 0x100082 netio syslogd 934 437877 1 77 3 0x100090 poll dhclient 79526 287312 1 0 3 0x80 poll dhclient 34544 498814 0 0 2 0x14200 zerothread 15039 501076 0 0 3 0x14200 aiodoned aiodoned 74283 14813 0 0 3 0x14200 syncer update 40891 131835 0 0 3 0x14200 cleaner cleaner 937 225551 0 0 3 0x14200 reaper reaper 60009 226558 0 0 3 0x14200 pgdaemon pagedaemon 19253 97922 0 0 3 0x14200 bored crynlk 96023 412039 0 0 3 0x14200 bored crypto 42192 481948 0 0 3 0x40014200 acpi0 acpi0 13766 456685 0 0 3 0x40014200 idle1 12932 42060 0 0 3 0x14200 bored softnet 59292 10228 0 0 3 0x14200 bored systqmp 68799 479491 0 0 3 0x14200 bored systq 48520 247043 0 0 3 0x40014200 bored softclock 58357 509196 0 0 3 0x40014200 idle0 88208 425179 0 0 3 0x14200 bored smr 1 345806 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 60926 (syz-executor.0) thread 0xffff800020b38720 (193498) exclusive rrwlock inode r = 0 (0xfffffd806866f4d8) 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_makeinode+0xc2 sys/ufs/ufs/ufs_vnops.c:1832 #7 ufs_mknod+0x4e sys/ufs/ufs/ufs_vnops.c:172 #8 VOP_MKNOD+0x76 sys/kern/vfs_vops.c:134 #9 domknodat+0x33a sys/kern/vfs_syscalls.c:1453 #10 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #10 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806866f2b8) 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 domknodat+0xa1 sys/kern/vfs_syscalls.c:1405 #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 Process 50525 (syz-executor.1) thread 0xffff800020b38978 (490234) exclusive rwlock netlock r = 0 (0xffffffff8219bcf8) 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 (0xffffffff8236a688) locked @ /syzkaller/managers/multicore/kernel/sys/scsi/scsi_base.c:256 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9512 6412K 6428K 78643K 10783 0 0 pcb 26 9K 11K 78643K 272 0 0 rtable 103 4K 4K 78643K 420 0 0 ifaddr 59 13K 14K 78643K 149 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1475 0 0 iov 0 0K 16K 78643K 44 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1202 75K 76K 78643K 1438 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 11 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 70 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 6 17K 19K 78643K 377 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 53 50K 71K 78643K 445 0 0 subproc 64 65538K 67586K 78643K 170 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 52 0 0 in_multi 33 2K 2K 78643K 81 0 0 ether_multi 1 0K 0K 78643K 4 0 0 mrt 0 0K 0K 78643K 5 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 239 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 90 21K 22K 78643K 2062 0 0 UVM aobj 21 2K 2K 78643K 23 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 26 0 0 NDP 12 0K 0K 78643K 44 0 0 temp 147 2369K 2447K 78643K 4456 0 0 kqueue 0 0K 0K 78643K 11 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 7 0 3 1 0 1 1 0 8 0 inpcbpl 280 200 0 193 1 0 1 1 0 8 0 plimitpl 152 38 0 30 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 58 0 54 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 10 0 6 1 0 1 1 0 8 0 ppxss 1128 18 0 17 2 1 1 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 24 0 8 1 0 1 1 0 8 0 pfstkey 112 24 0 8 1 0 1 1 0 8 0 pfstate 328 24 0 8 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 256 311 0 123 12 0 12 12 0 8 0 art_table 32 312 0 123 2 0 2 2 0 8 0 art_node 16 68 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 68 0 58 1 0 1 1 0 8 0 shmpl 112 21 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2077 0 652 47 0 47 47 0 8 0 ffsino 272 2077 0 652 97 1 96 96 0 8 0 nchpl 144 2843 0 1218 61 0 61 61 0 8 0 uvmvnodes 72 2217 0 0 41 0 41 41 0 8 0 vnodes 200 2217 0 0 117 0 117 117 0 8 0 namei 1024 8324 0 8323 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 0 1 1 0 8 1 scxspl 192 8136 0 8136 10 9 1 6 0 8 1 sigapl 432 567 0 551 2 0 2 2 0 8 0 futexpl 56 4484 0 4484 1 0 1 1 0 8 1 knotepl 112 205 0 186 2 1 1 2 0 8 0 kqueuepl 104 93 0 91 1 0 1 1 0 8 0 pipepl 112 382 0 363 2 1 1 1 0 8 0 fdescpl 488 568 0 551 3 0 3 3 0 8 0 filepl 152 3415 0 3314 6 0 6 6 0 8 2 lockfpl 104 105 0 105 2 1 1 1 0 8 1 lockfspl 32 123 0 123 2 1 1 1 0 8 1 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 629 0 620 1 0 1 1 0 8 0 zombiepl 144 551 0 551 2 1 1 1 0 8 1 processpl 840 584 0 551 4 0 4 4 0 8 0 procpl 600 1332 0 1288 4 0 4 4 0 8 0 srpgc 64 19 0 19 2 1 1 1 0 8 1 sosppl 128 5 0 5 2 1 1 1 0 8 1 sockpl 384 427 0 407 5 1 4 4 0 8 2 mcl64k 65536 386 0 0 47 0 47 47 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 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 130 0 0 16 0 16 16 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 478 0 0 28 0 28 28 0 8 0 bufpl 256 6782 0 1148 353 0 353 353 0 8 0 anonpl 16 72338 0 64044 55 7 48 53 0 125 8 amapchunkpl 152 3009 0 2910 9 0 9 9 0 158 4 amappl16 192 2801 0 2341 40 8 32 35 0 8 8 amappl15 184 114 0 109 1 0 1 1 0 8 0 amappl14 176 32 0 29 2 1 1 1 0 8 0 amappl13 168 27 0 24 1 0 1 1 0 8 0 amappl12 160 16 0 15 1 0 1 1 0 8 0 amappl11 152 150 0 135 1 0 1 1 0 8 0 amappl10 144 199 0 193 1 0 1 1 0 8 0 amappl9 136 646 0 641 1 0 1 1 0 8 0 amappl8 128 198 0 181 1 0 1 1 0 8 0 amappl7 120 166 0 161 1 0 1 1 0 8 0 amappl6 112 179 0 172 1 0 1 1 0 8 0 amappl5 104 118 0 104 1 0 1 1 0 8 0 amappl4 96 804 0 772 2 1 1 2 0 8 0 amappl3 88 133 0 127 1 0 1 1 0 8 0 amappl2 80 3809 0 3746 2 0 2 2 0 8 0 amappl1 72 21701 0 21255 25 15 10 20 0 8 0 amappl 72 1593 0 1554 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 22 0 2 1 0 1 1 0 8 0 uaddrrnd 24 568 0 551 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 568 0 551 1 0 1 1 0 8 0 vmmpekpl 168 8618 0 8596 2 0 2 2 0 8 0 vmmpepl 168 68027 0 66485 93 13 80 82 0 357 12 vmsppl 360 567 0 551 2 0 2 2 0 8 0 pdppl 4096 1144 0 1102 6 0 6 6 0 8 0 pvpl 32 221671 0 210033 138 7 131 137 0 265 28 pmappl 224 567 0 551 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 572 0 4 17 0 17 17 0 8 0