uvm_fault(0xffffffff82259780, 0xffff80000298f000, 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(0xffffffff82259780, 0xffff80000298f000, 0, 1) -> e memcpy(fffffd807535e0e8,ffff80000298ef0d,0,fffffd807535e0e8,d20e4f1573252bf6,ffff800020bfce78) at memcpy+0x15 end trace frame: 0xffff800020bfcd80, count: 0 ddb{1}> trace memcpy(fffffd807535e0e8,ffff80000298ef0d,0,fffffd807535e0e8,d20e4f1573252bf6,ffff800020bfce78) at memcpy+0x15 rtrequest(1,ffff800020bfce78,38,ffff800020bfcdc0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000298ef00,ffff800020bfce70,ffff800020bfce78,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806d433400,fffffd806f736300,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f736300,9,fffffd806d433400,0,0,ffff800020b384c8) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f736300,0,ffff800020bfd138,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b384c8,3,ffff800020bfd1f8,0,ffff800020bfd2c0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b384c8,ffff800020bfd2d8,ffff800020bfd2c0) at sys_sendto+0x92 syscall(ffff800020bfd370) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bfd370) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,5afb27ad010) at Xsyscall+0x128 end of kernel end trace frame: 0x5b257a3d080, count: -10 ddb{1}> show registers rdi 0xffff80000298edf0 rsi 0xffff80000298effd rbp 0xffff800020bfcc70 rbx 0xffff80000298ef0d rdx 0x100 rcx 0x2 rax 0xfffffffffffffdf3 r8 0 r9 0x5 r10 0x2b2242c4113acab1 r11 0xffff80000298ed00 r12 0xffff80000298ed00 r13 0x100 r14 0 r15 0xfffffd807535e0e8 rip 0xffffffff810902a5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020bfcc08 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=255122 stat=onproc flags process=0 proc=4000000 pri=73, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38018,0xffffffff8235c268 process=0xffff800020b8d3c8 user=0xffff800020bf8000, vmspace=0xfffffd807effe9d8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 28338 321582 66438 0 7 0 syz-executor.0 *28338 255122 66438 0 7 0x4000000 syz-executor.0 66438 346080 19212 0 3 0x82 nanosleep syz-executor.0 72286 276375 19212 0 3 0x2 biowait syz-executor.1 19212 297027 58990 0 3 0x82 thrsleep syz-fuzzer 19212 181494 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 202116 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 217769 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 251339 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 245172 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 238096 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 459067 58990 0 3 0x4000082 kqread syz-fuzzer 19212 475030 58990 0 3 0x4000082 thrsleep syz-fuzzer 19212 64491 58990 0 3 0x4000082 thrsleep syz-fuzzer 58990 429144 78514 0 3 0x10008a pause ksh 78514 286894 62413 0 3 0x92 select sshd 6109 143793 1 0 3 0x100083 ttyin getty 62413 124737 1 0 3 0x80 select sshd 20221 402139 69475 74 3 0x100092 bpf pflogd 69475 329 1 0 3 0x80 netio pflogd 14469 402553 72147 73 2 0x100090 syslogd 72147 472992 1 0 3 0x100082 netio syslogd 51020 194695 1 77 3 0x100090 poll dhclient 99830 475222 1 0 3 0x80 poll dhclient 1311 309987 0 0 3 0x14200 pgzero zerothread 54078 122871 0 0 3 0x14200 aiodoned aiodoned 79126 451328 0 0 3 0x14200 syncer update 8955 199413 0 0 3 0x14200 cleaner cleaner 55110 57452 0 0 3 0x14200 reaper reaper 83657 249227 0 0 3 0x14200 pgdaemon pagedaemon 6688 65237 0 0 3 0x14200 bored crynlk 62169 76109 0 0 3 0x14200 bored crypto 42888 222493 0 0 3 0x40014200 acpi0 acpi0 86067 204717 0 0 3 0x40014200 idle1 10938 129780 0 0 3 0x14200 bored softnet 94926 146599 0 0 3 0x14200 bored systqmp 45741 221194 0 0 3 0x14200 bored systq 81714 194775 0 0 3 0x40014200 bored softclock 55969 332355 0 0 3 0x40014200 idle0 91930 463908 0 0 3 0x14200 bored smr 1 45087 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 28338 (syz-executor.0) thread 0xffff800020b384c8 (255122) exclusive rwlock netlock r = 0 (0xffffffff821c45d8) 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 (0xffffffff823681d0) 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 72286 (syz-executor.1) thread 0xffff800020b39c38 (276375) exclusive rrwlock inode r = 0 (0xfffffd80689104e0) 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 (0xfffffd80689101b0) 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 9482 6394K 6403K 78643K 10607 0 0 pcb 26 9K 10K 78643K 108 0 0 rtable 103 4K 4K 78643K 239 0 0 ifaddr 46 11K 12K 78643K 66 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1470 0 0 iov 0 0K 12K 78643K 28 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1199 75K 76K 78643K 1303 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 5 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 12 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 230 0 0 sigio 0 0K 0K 78643K 11 0 0 proc 53 50K 71K 78643K 365 0 0 subproc 64 65538K 67586K 78643K 102 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 14 0 0 in_multi 33 2K 2K 78643K 45 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 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 296 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 20K 24K 78643K 1573 0 0 UVM aobj 12 4K 4K 78643K 15 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 7 0 0 NDP 8 0K 0K 78643K 18 0 0 temp 117 2372K 2443K 78643K 3817 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 5 0 1 1 0 1 1 0 8 0 inpcbpl 280 105 0 98 1 0 1 1 0 8 0 plimitpl 152 16 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 51 0 10 2 0 2 2 0 8 0 syncache 264 4 0 4 2 2 0 1 0 8 0 tcpcb 544 40 0 36 1 0 1 1 0 8 0 nd6 48 6 0 2 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 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 13 0 3 1 0 1 1 0 8 0 pfstkey 112 13 0 3 1 0 1 1 0 8 0 pfstate 328 13 0 3 1 0 1 1 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 256 227 0 41 12 0 12 12 0 8 0 art_table 32 228 0 41 2 0 2 2 0 8 0 art_node 16 49 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 1 1 0 1 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 13 0 3 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1769 0 354 46 0 46 46 0 8 0 ffsino 272 1769 0 354 95 0 95 95 0 8 0 nchpl 144 2446 0 814 61 0 61 61 0 8 0 uvmvnodes 72 1838 0 0 34 0 34 34 0 8 0 vnodes 200 1838 0 0 97 0 97 97 0 8 0 namei 1024 6826 0 6825 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 5912 0 5911 10 9 1 6 0 8 0 sigapl 432 426 0 411 2 0 2 2 0 8 0 futexpl 56 2802 0 2802 1 0 1 1 0 8 1 knotepl 112 250 0 231 1 0 1 1 0 8 0 kqueuepl 104 119 0 117 1 0 1 1 0 8 0 pipepl 112 222 0 203 2 1 1 1 0 8 0 fdescpl 488 427 0 411 3 0 3 3 0 8 0 filepl 152 2680 0 2580 5 0 5 5 0 8 1 lockfpl 104 38 0 38 2 1 1 1 0 8 1 lockfspl 32 16 0 16 2 1 1 1 0 8 1 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 722 0 713 1 0 1 1 0 8 0 zombiepl 144 411 0 411 2 1 1 1 0 8 1 processpl 840 442 0 411 4 0 4 4 0 8 0 procpl 600 895 0 854 4 0 4 4 0 8 0 srpgc 64 6 0 6 1 1 0 1 0 8 0 sockpl 384 188 0 168 3 0 3 3 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 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 137 0 0 16 1 15 16 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 158 0 0 8 0 8 8 0 8 0 bufpl 256 6125 0 1143 312 0 312 312 0 8 0 anonpl 16 50427 0 41831 40 4 36 38 0 125 1 amapchunkpl 152 2047 0 1959 9 2 7 9 0 158 3 amappl16 192 1414 0 965 23 0 23 23 0 8 0 amappl15 184 158 0 154 1 0 1 1 0 8 0 amappl14 176 118 0 114 2 1 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 108 0 105 2 1 1 1 0 8 0 amappl11 152 24 0 8 1 0 1 1 0 8 0 amappl10 144 80 0 77 1 0 1 1 0 8 0 amappl9 136 588 0 585 1 0 1 1 0 8 0 amappl8 128 136 0 121 1 0 1 1 0 8 0 amappl7 120 35 0 29 1 0 1 1 0 8 0 amappl6 112 60 0 52 1 0 1 1 0 8 0 amappl5 104 109 0 95 1 0 1 1 0 8 0 amappl4 96 563 0 535 2 1 1 2 0 8 0 amappl3 88 307 0 298 1 0 1 1 0 8 0 amappl2 80 2658 0 2601 2 0 2 2 0 8 0 amappl1 72 18827 0 18383 25 15 10 20 0 8 0 amappl 72 1138 0 1103 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 14 0 3 1 0 1 1 0 8 0 uaddrrnd 24 427 0 411 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 427 0 411 1 0 1 1 0 8 0 vmmpekpl 168 7375 0 7353 2 0 2 2 0 8 0 vmmpepl 168 52609 0 51154 90 20 70 77 0 357 5 vmsppl 360 426 0 411 2 0 2 2 0 8 0 pdppl 4096 862 0 822 6 0 6 6 0 8 0 pvpl 32 174516 0 162680 114 9 105 107 0 265 7 pmappl 224 426 0 411 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 464 0 5 14 0 14 14 0 8 0