uvm_fault(0xffffffff8225d700, 0xffff8000019a7000, 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(0xffffffff8225d700, 0xffff8000019a7000, 0, 1) -> e memcpy(fffffd80658b6858,ffff8000019a6f0d,0,fffffd80658b6858,76c7e34a82bf53c2,ffff800020c550b8) at memcpy+0x15 end trace frame: 0xffff800020c54fc0, count: 0 ddb{0}> trace memcpy(fffffd80658b6858,ffff8000019a6f0d,0,fffffd80658b6858,76c7e34a82bf53c2,ffff800020c550b8) at memcpy+0x15 rtrequest(1,ffff800020c550b8,38,ffff800020c55000,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000019a6f00,ffff800020c550b0,ffff800020c550b8,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd807ec47500,fffffd806f736780,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f736780,9,fffffd807ec47500,0,0,ffff800020b39530) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f736780,0,ffff800020c55378,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b39530,3,ffff800020c55438,0,ffff800020c55500) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39530,ffff800020c55518,ffff800020c55500) at sys_sendto+0x92 syscall(ffff800020c555b0) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c555b0) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,bc591a47010) at Xsyscall+0x128 end of kernel end trace frame: 0xbc87a71edb0, count: -10 ddb{0}> show registers rdi 0xffff8000019a62f0 rsi 0xffff8000019a6ffd rbp 0xffff800020c54eb0 rbx 0xffff8000019a6f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff2f3 r8 0 r9 0x5 r10 0xc633a55968eed7d3 r11 0xffff8000019a6200 r12 0xffff8000019a6200 r13 0x100 r14 0 r15 0xfffffd80658b6858 rip 0xffffffff8143f675 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c54e48 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.0) pid=519594 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38e28,0xffffffff8234ec80 process=0xffff800020b8cd38 user=0xffff800020c50000, vmspace=0xfffffd807effd9d8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99981 114240 45806 0 2 0 syz-executor.0 *99981 519594 45806 0 7 0x4000000 syz-executor.0 43988 419130 49995 0 2 0x2 syz-executor.1 99860 128065 0 0 3 0x14200 bored sosplice 45806 493755 49995 0 3 0x82 nanosleep syz-executor.0 49995 505078 30083 0 3 0x82 thrsleep syz-fuzzer 49995 100958 30083 0 3 0x4000082 nanosleep syz-fuzzer 49995 105878 30083 0 3 0x4000082 thrsleep syz-fuzzer 49995 239363 30083 0 3 0x4000082 kqread syz-fuzzer 49995 486771 30083 0 3 0x4000082 nanosleep syz-fuzzer 49995 352660 30083 0 3 0x4000082 thrsleep syz-fuzzer 49995 396646 30083 0 3 0x4000082 thrsleep syz-fuzzer 49995 278352 30083 0 3 0x4000082 thrsleep syz-fuzzer 49995 26749 30083 0 3 0x4000082 thrsleep syz-fuzzer 49995 252200 30083 0 3 0x4000082 thrsleep syz-fuzzer 30083 123095 18074 0 3 0x10008a pause ksh 18074 292898 51544 0 3 0x92 select sshd 37478 219738 1 0 3 0x100083 ttyin getty 51544 135176 1 0 3 0x80 select sshd 29326 522674 53791 74 3 0x100092 bpf pflogd 53791 435532 1 0 3 0x80 netio pflogd 46087 511425 71860 73 7 0x100090 syslogd 71860 82890 1 0 3 0x100082 netio syslogd 23182 360219 1 77 3 0x100090 poll dhclient 80493 372428 1 0 3 0x80 poll dhclient 83467 265017 0 0 3 0x14200 pgzero zerothread 4005 104283 0 0 3 0x14200 aiodoned aiodoned 3883 30715 0 0 3 0x14200 syncer update 84444 104987 0 0 3 0x14200 cleaner cleaner 94273 171375 0 0 3 0x14200 reaper reaper 43857 369938 0 0 3 0x14200 pgdaemon pagedaemon 60234 351978 0 0 3 0x14200 bored crynlk 33888 129609 0 0 3 0x14200 bored crypto 57937 295869 0 0 3 0x40014200 acpi0 acpi0 81403 216044 0 0 3 0x40014200 idle1 50315 196805 0 0 3 0x14200 bored softnet 28768 134892 0 0 3 0x14200 bored systqmp 73993 500289 0 0 3 0x14200 bored systq 68401 204025 0 0 3 0x40014200 bored softclock 75283 198061 0 0 3 0x40014200 idle0 40281 131837 0 0 3 0x14200 bored smr 1 55736 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 99981 (syz-executor.0) thread 0xffff800020b39530 (519594) 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/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 Process 43988 (syz-executor.1) thread 0xffff800020b39788 (419130) exclusive rrwlock inode r = 0 (0xfffffd806e2894d8) 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 (0xfffffd806e156a28) 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 9525 6415K 6425K 78643K 10747 0 0 pcb 26 9K 10K 78643K 219 0 0 rtable 103 4K 4K 78643K 323 0 0 ifaddr 61 13K 13K 78643K 105 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1471 0 0 iov 0 0K 24K 78643K 42 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1196 75K 75K 78643K 1375 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 7 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 38 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 304 0 0 sigio 0 0K 0K 78643K 1 0 0 proc 54 51K 83K 78643K 392 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 23 0 0 in_multi 33 2K 2K 78643K 59 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 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 218 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 86 21K 22K 78643K 1834 0 0 UVM aobj 19 2K 2K 78643K 20 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 15 0 0 NDP 13 0K 0K 78643K 31 0 0 temp 151 2369K 2496K 78643K 4109 0 0 kqueue 0 0K 0K 78643K 4 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 280 192 0 185 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 62 0 21 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 15 0 15 1 1 0 1 0 8 0 tcpcb 544 65 0 61 1 0 1 1 0 8 0 nd6 48 8 0 4 1 0 1 1 0 8 0 ppxss 1128 5 0 5 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 21 0 9 1 0 1 1 0 8 0 pfstkey 112 21 0 9 1 0 1 1 0 8 0 pfstate 328 21 0 9 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 256 271 0 82 12 0 12 12 0 8 0 art_table 32 272 0 82 2 0 2 2 0 8 0 art_node 16 58 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 2 1 1 1 0 8 0 semapl 112 32 0 22 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1920 0 497 46 0 46 46 0 8 0 ffsino 272 1920 0 497 95 0 95 95 0 8 0 nchpl 144 2559 0 920 61 0 61 61 0 8 0 uvmvnodes 72 2030 0 0 37 0 37 37 0 8 0 vnodes 200 2030 0 0 107 0 107 107 0 8 0 namei 1024 6968 0 6967 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 4 0 4 3 3 0 1 0 8 0 scxspl 192 7299 0 7299 9 8 1 6 0 8 1 sigapl 432 497 0 482 2 0 2 2 0 8 0 futexpl 56 3221 0 3221 1 0 1 1 0 8 1 knotepl 112 146 0 127 1 0 1 1 0 8 0 kqueuepl 104 98 0 96 1 0 1 1 0 8 0 pipepl 112 336 0 317 1 0 1 1 0 8 0 fdescpl 488 498 0 482 3 0 3 3 0 8 0 filepl 152 2805 0 2705 6 1 5 5 0 8 1 lockfpl 104 100 0 100 3 2 1 1 0 8 1 lockfspl 32 58 0 58 3 2 1 1 0 8 1 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 430 0 421 1 0 1 1 0 8 0 zombiepl 144 482 0 482 2 1 1 1 0 8 1 processpl 840 514 0 482 4 0 4 4 0 8 0 procpl 600 1131 0 1089 4 0 4 4 0 8 0 srpgc 64 12 0 12 2 2 0 1 0 8 0 sosppl 128 7 0 7 3 2 1 1 0 8 1 sockpl 384 372 0 352 4 1 3 3 0 8 1 mcl64k 65536 258 0 0 33 1 32 33 0 8 1 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 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 123 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 335 0 0 20 0 20 20 0 8 0 bufpl 256 6531 0 1143 337 0 337 337 0 8 0 anonpl 16 66630 0 58215 56 7 49 49 0 125 11 amapchunkpl 152 2499 0 2416 7 2 5 5 0 158 0 amappl16 192 2558 0 2113 45 14 31 35 0 8 8 amappl15 184 98 0 93 1 0 1 1 0 8 0 amappl14 176 78 0 75 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 58 0 57 1 0 1 1 0 8 0 amappl11 152 58 0 42 1 0 1 1 0 8 0 amappl10 144 107 0 104 1 0 1 1 0 8 0 amappl9 136 731 0 725 1 0 1 1 0 8 0 amappl8 128 289 0 272 1 0 1 1 0 8 0 amappl7 120 75 0 70 1 0 1 1 0 8 0 amappl6 112 99 0 88 1 0 1 1 0 8 0 amappl5 104 137 0 121 1 0 1 1 0 8 0 amappl4 96 690 0 660 2 1 1 2 0 8 0 amappl3 88 219 0 214 1 0 1 1 0 8 0 amappl2 80 3172 0 3118 2 0 2 2 0 8 0 amappl1 72 20404 0 19970 26 16 10 20 0 8 0 amappl 72 1377 0 1343 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 19 0 1 1 0 1 1 0 8 0 uaddrrnd 24 498 0 482 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 498 0 482 1 0 1 1 0 8 0 vmmpekpl 168 8158 0 8134 2 0 2 2 0 8 0 vmmpepl 168 61109 0 59667 92 12 80 80 0 357 14 vmsppl 360 497 0 482 2 0 2 2 0 8 0 pdppl 4096 1004 0 964 6 0 6 6 0 8 0 pvpl 32 204912 0 193238 140 6 134 134 0 265 33 pmappl 224 497 0 482 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 531 0 4 16 0 16 16 0 8 0