uvm_fault(0xffffffff8223b348, 0xffff80000299c000, 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, 0xffff80000299c000, 0, 1) -> e memcpy(fffffd807bb101c8,ffff80000299bf0d,0,fffffd807bb101c8,b47fc95c6b35c428,ffff800020bf50b8) at memcpy+0x15 end trace frame: 0xffff800020bf4fc0, count: 0 ddb{0}> trace memcpy(fffffd807bb101c8,ffff80000299bf0d,0,fffffd807bb101c8,b47fc95c6b35c428,ffff800020bf50b8) at memcpy+0x15 rtrequest(1,ffff800020bf50b8,0,ffff800020bf5000,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000299bf00,ffff800020bf50b0,ffff800020bf50b8,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806d86fd00,fffffd8069bd3490,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd8069bd3490,9,fffffd806d86fd00,0,0,ffff800020b74720) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8069bd3490,0,ffff800020bf5378,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b74720,4,ffff800020bf5438,0,ffff800020bf5500) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b74720,ffff800020bf5518,ffff800020bf5500) at sys_sendto+0x92 syscall(ffff800020bf55b0) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bf55b0) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,4ffda201010) at Xsyscall+0x128 end of kernel end trace frame: 0x502b4e92ad0, count: -10 ddb{0}> show registers rdi 0xffff80000299b2f0 rsi 0xffff80000299bffd rbp 0xffff800020bf4eb0 rbx 0xffff80000299bf0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff2f3 r8 0 r9 0x5 r10 0x61623f82f7b58121 r11 0xffff80000299b200 r12 0xffff80000299b200 r13 0x100 r14 0 r15 0xfffffd807bb101c8 rip 0xffffffff816fc665 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020bf4e48 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=479617 stat=onproc flags process=1000 proc=4080000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020b759e0,0xffffffff8237cfc8 process=0xffff800020b3b708 user=0xffff800020bf0000, vmspace=0xfffffd807effdb40 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39951 410271 14980 0 3 0x3000 suspend syz-executor.1 *39951 479617 14980 0 7 0x4081000 syz-executor.1 34565 109640 85273 0 7 0x2 syz-executor.0 58300 251250 0 0 3 0x14200 bored sosplice 43622 154469 1 0 3 0x100083 ttyin getty 14980 152851 85273 0 2 0x482 syz-executor.1 85273 130831 17878 0 3 0x82 thrsleep syz-fuzzer 85273 492680 17878 0 3 0x4000082 nanosleep syz-fuzzer 85273 306127 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 97040 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 473755 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 193037 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 163247 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 489197 17878 0 3 0x4000082 thrsleep syz-fuzzer 85273 88660 17878 0 3 0x4000082 kqread syz-fuzzer 85273 32200 17878 0 3 0x4000082 thrsleep syz-fuzzer 17878 273766 81398 0 3 0x10008a pause ksh 81398 277769 5772 0 3 0x92 select sshd 5772 313548 1 0 3 0x80 select sshd 29149 357460 99307 74 3 0x100092 bpf pflogd 99307 138495 1 0 3 0x80 netio pflogd 42609 173435 15994 73 2 0x100090 syslogd 15994 333422 1 0 3 0x100082 netio syslogd 71876 471895 1 77 3 0x100090 poll dhclient 39725 342670 1 0 3 0x80 poll dhclient 65631 268158 0 0 3 0x14200 pgzero zerothread 89103 345743 0 0 3 0x14200 aiodoned aiodoned 26984 384764 0 0 3 0x14200 syncer update 13898 229839 0 0 3 0x14200 cleaner cleaner 84838 72407 0 0 3 0x14200 reaper reaper 75672 19984 0 0 3 0x14200 pgdaemon pagedaemon 20691 388942 0 0 3 0x14200 bored crynlk 14325 361336 0 0 3 0x14200 bored crypto 48967 493686 0 0 3 0x40014200 acpi0 acpi0 47398 45581 0 0 3 0x40014200 idle1 99447 262151 0 0 3 0x14200 bored softnet 25807 209761 0 0 3 0x14200 bored systqmp 40084 240115 0 0 3 0x14200 bored systq 67768 423116 0 0 3 0x40014200 bored softclock 44997 290660 0 0 3 0x40014200 idle0 60158 161249 0 0 3 0x14200 bored smr 1 186094 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 39951 (syz-executor.1) thread 0xffff800020b74720 (479617) 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/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 34565 (syz-executor.0) thread 0xffff800020b74978 (109640) exclusive rrwlock inode r = 0 (0xfffffd806e4ffe68) 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 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 ufs_ihashget+0x151 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x84 sys/ufs/ffs/ffs_vfsops.c:1323 #8 ufs_lookup+0x15d3 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x67 sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x556 sys/kern/vfs_lookup.c:523 #11 namei+0x4b2 sys/kern/vfs_lookup.c:224 #12 dounlinkat+0xa5 sys/kern/vfs_syscalls.c:1673 #13 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #13 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e4c2e68) 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 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 cache_lookup+0x300 sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1d7 sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x67 sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x556 sys/kern/vfs_lookup.c:523 #10 namei+0x4b2 sys/kern/vfs_lookup.c:224 #11 dounlinkat+0xa5 sys/kern/vfs_syscalls.c:1673 #12 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #12 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9507 6403K 6411K 78643K 10729 0 0 pcb 27 9K 10K 78643K 193 0 0 rtable 103 4K 4K 78643K 311 0 0 ifaddr 55 12K 13K 78643K 101 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1474 0 0 iov 0 0K 28K 78643K 51 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 75K 78643K 1436 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 8 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 29 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 354 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 54 51K 71K 78643K 403 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 43 0 0 in_multi 33 2K 2K 78643K 64 0 0 ether_multi 1 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 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 227 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 84 20K 29K 78643K 2040 0 0 UVM aobj 25 2K 2K 78643K 28 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 21 0 0 NDP 11 0K 0K 78643K 29 0 0 temp 141 2369K 2494K 78643K 4224 0 0 kqueue 0 0K 0K 78643K 1 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 280 225 0 218 1 0 1 1 0 8 0 plimitpl 152 34 0 26 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 20 0 20 1 1 0 1 0 8 0 tcpcb 544 88 0 84 1 0 1 1 0 8 0 nd6 48 8 0 4 1 0 1 1 0 8 0 ppxss 1128 7 0 7 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 17 0 8 1 0 1 1 0 8 0 pfstkey 112 17 0 8 1 0 1 1 0 8 0 pfstate 328 17 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 256 267 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 58 0 24 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 27 0 17 1 0 1 1 0 8 0 shmpl 112 26 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2074 0 659 46 0 46 46 0 8 0 ffsino 272 2074 0 659 95 0 95 95 0 8 0 nchpl 144 2763 0 1124 61 0 61 61 0 8 0 uvmvnodes 72 2192 0 0 40 0 40 40 0 8 0 vnodes 200 2192 0 0 116 0 116 116 0 8 0 namei 1024 7910 0 7910 3 2 1 1 0 8 1 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 8268 0 8268 9 8 1 6 0 8 1 sigapl 432 548 0 533 2 0 2 2 0 8 0 futexpl 56 3907 0 3907 1 0 1 1 0 8 1 knotepl 112 153 0 134 1 0 1 1 0 8 0 kqueuepl 104 90 0 88 1 0 1 1 0 8 0 pipepl 112 376 0 357 3 2 1 1 0 8 0 fdescpl 488 549 0 533 3 0 3 3 0 8 0 filepl 152 3253 0 3151 5 0 5 5 0 8 1 lockfpl 104 115 0 115 3 2 1 1 0 8 1 lockfspl 32 153 0 153 3 2 1 1 0 8 1 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 29 0 18 1 0 1 1 0 8 0 ucredpl 96 652 0 643 1 0 1 1 0 8 0 zombiepl 144 533 0 533 3 2 1 1 0 8 1 processpl 840 565 0 533 4 0 4 4 0 8 0 procpl 600 1340 0 1298 4 0 4 4 0 8 0 srpgc 64 12 0 12 1 1 0 1 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 384 385 0 364 3 0 3 3 0 8 0 mcl64k 65536 5 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 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 136 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 194 0 0 10 0 10 10 0 8 0 bufpl 256 6615 0 1148 342 0 342 342 0 8 0 anonpl 16 72469 0 63662 66 13 53 53 0 125 15 amapchunkpl 152 3022 0 2931 9 1 8 9 0 158 3 amappl16 192 2592 0 2135 51 16 35 35 0 8 12 amappl15 184 214 0 209 1 0 1 1 0 8 0 amappl14 176 26 0 24 3 2 1 1 0 8 0 amappl13 168 325 0 320 1 0 1 1 0 8 0 amappl12 160 17 0 15 2 1 1 1 0 8 0 amappl11 152 23 0 8 1 0 1 1 0 8 0 amappl10 144 87 0 83 1 0 1 1 0 8 0 amappl9 136 579 0 575 1 0 1 1 0 8 0 amappl8 128 147 0 130 1 0 1 1 0 8 0 amappl7 120 54 0 49 1 0 1 1 0 8 0 amappl6 112 67 0 59 1 0 1 1 0 8 0 amappl5 104 143 0 129 1 0 1 1 0 8 0 amappl4 96 796 0 764 2 1 1 2 0 8 0 amappl3 88 126 0 121 1 0 1 1 0 8 0 amappl2 80 3924 0 3867 2 0 2 2 0 8 0 amappl1 72 21748 0 21310 25 15 10 20 0 8 0 amappl 72 1590 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 27 0 3 1 0 1 1 0 8 0 uaddrrnd 24 549 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 549 0 533 1 0 1 1 0 8 0 vmmpekpl 168 8694 0 8669 2 0 2 2 0 8 0 vmmpepl 168 67700 0 66243 100 21 79 79 0 357 10 vmsppl 360 548 0 533 2 0 2 2 0 8 0 pdppl 4096 1106 0 1066 6 0 6 6 0 8 0 pvpl 32 225169 0 213110 167 31 136 137 0 265 37 pmappl 224 548 0 533 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 496 0 5 15 0 15 15 0 8 0