uvm_fault(0xffffffff823168f0, 0xffff8000049cf000, 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(0xffffffff823168f0, 0xffff8000049cf000, 0, 1) -> e memcpy(fffffd807daa51c8,ffff8000049cef0d,0,fffffd807daa51c8,def39076169fcf22,ffff800020c66d28) at memcpy+0x15 end trace frame: 0xffff800020c66c30, count: 0 ddb{1}> trace memcpy(fffffd807daa51c8,ffff8000049cef0d,0,fffffd807daa51c8,def39076169fcf22,ffff800020c66d28) at memcpy+0x15 rtrequest(1,ffff800020c66d28,0,ffff800020c66c70,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000049cef00,ffff800020c66d20,ffff800020c66d28,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd807eb76700,fffffd806f73d180,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f73d180,9,fffffd807eb76700,0,0,ffff800020b39788) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f73d180,0,ffff800020c66fe8,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b39788,3,ffff800020c670a8,0,ffff800020c67170) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39788,ffff800020c67188,ffff800020c67170) at sys_sendto+0x92 syscall(ffff800020c67220) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c67220) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,71d8087010) at Xsyscall+0x128 end of kernel end trace frame: 0x746091d2e0, count: -10 ddb{1}> show registers rdi 0xffff8000049ce0f0 rsi 0xffff8000049ceffd rbp 0xffff800020c66b20 rbx 0xffff8000049cef0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff0f3 r8 0 r9 0x5 r10 0x5d8ba32cd82ca904 r11 0xffff8000049ce000 r12 0xffff8000049ce000 r13 0x100 r14 0 r15 0xfffffd807daa51c8 rip 0xffffffff811afcf5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c66ab8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=225386 stat=onproc flags process=0 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38018,0xffffffff82383fe0 process=0xffff800020b8da58 user=0xffff800020c62000, vmspace=0xfffffd807effe2d0 estcpu=28, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27424 134200 46131 0 7 0 syz-executor.0 *27424 225386 46131 0 7 0x4000000 syz-executor.0 71761 447290 32844 0 2 0 syz-executor.1 71761 330864 32844 0 3 0x4000000 biowait syz-executor.1 71761 48226 32844 0 3 0x4000080 fsleep syz-executor.1 46131 164652 21100 0 3 0x82 nanosleep syz-executor.0 23642 204157 1 0 3 0x100083 ttyin getty 32844 157205 21100 0 3 0x82 nanosleep syz-executor.1 7712 426018 0 0 3 0x14200 bored sosplice 21100 115927 18734 0 3 0x82 thrsleep syz-fuzzer 21100 242284 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 280120 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 311730 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 270153 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 102053 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 512383 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 310006 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 152611 18734 0 3 0x4000082 thrsleep syz-fuzzer 21100 329501 18734 0 3 0x4000082 kqread syz-fuzzer 18734 207303 6629 0 3 0x10008a pause ksh 6629 419326 58007 0 3 0x92 select sshd 58007 237563 1 0 3 0x80 select sshd 74555 157370 60580 74 3 0x100092 bpf pflogd 60580 85590 1 0 3 0x80 netio pflogd 93766 307563 82545 73 2 0x100090 syslogd 82545 22719 1 0 3 0x100082 netio syslogd 22672 515934 1 77 3 0x100090 poll dhclient 95990 221743 1 0 3 0x80 poll dhclient 5772 12962 0 0 2 0x14200 zerothread 15314 47758 0 0 3 0x14200 aiodoned aiodoned 48099 505108 0 0 3 0x14200 syncer update 68727 351207 0 0 3 0x14200 cleaner cleaner 95722 477940 0 0 3 0x14200 reaper reaper 55989 130939 0 0 3 0x14200 pgdaemon pagedaemon 61049 444808 0 0 3 0x14200 bored crynlk 55556 188772 0 0 3 0x14200 bored crypto 43424 355750 0 0 3 0x40014200 acpi0 acpi0 57147 19209 0 0 3 0x40014200 idle1 20398 189268 0 0 3 0x14200 bored softnet 82169 444872 0 0 3 0x14200 bored systqmp 71472 218388 0 0 3 0x14200 bored systq 44328 180813 0 0 3 0x40014200 bored softclock 2720 255395 0 0 3 0x40014200 idle0 29185 187641 0 0 3 0x14200 bored smr 1 396896 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 27424 (syz-executor.0) thread 0xffff800020b39788 (225386) 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/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 71761 (syz-executor.1) thread 0xffff800020b39080 (330864) exclusive rrwlock inode r = 0 (0xfffffd806e17bd58) 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_create+0x41 sys/ufs/ufs/ufs_vnops.c:152 #8 VOP_CREATE+0x70 sys/kern/vfs_vops.c:112 #9 vn_open+0x25a sys/kern/vfs_vnops.c:112 #10 doopenat+0x2ca sys/kern/vfs_syscalls.c:1045 #11 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #11 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064056b48) 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 vn_open+0x157 sys/kern/vfs_vnops.c:103 #8 doopenat+0x2ca sys/kern/vfs_syscalls.c:1045 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9557 6437K 6441K 78643K 13223 0 0 pcb 26 9K 12K 78643K 1086 0 0 rtable 103 4K 4K 78643K 988 0 0 ifaddr 70 15K 16K 78643K 373 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1509 0 0 iov 0 0K 16K 78643K 284 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 76K 78643K 3036 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 35 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 279 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 6 17K 21K 78643K 2463 0 0 sigio 0 0K 0K 78643K 28 0 0 proc 54 51K 71K 78643K 869 0 0 subproc 64 65538K 67586K 78643K 460 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 235 0 0 in_multi 33 2K 2K 78643K 253 0 0 ether_multi 1 0K 0K 78643K 21 0 0 mrt 0 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 431 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 97 21K 30K 78643K 8722 0 0 UVM aobj 114 6K 6K 78643K 138 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 133 0 0 NDP 16 0K 0K 78643K 115 0 0 temp 200 2380K 2452K 78643K 11176 0 0 kqueue 0 0K 0K 78643K 34 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 15 0 11 1 0 1 1 0 8 0 inpcbpl 280 1113 0 1106 1 0 1 1 0 8 0 plimitpl 152 104 0 96 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 148 0 107 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 12 0 12 1 1 0 1 0 8 0 tcpcb 544 378 0 374 1 0 1 1 0 8 0 rttmr 72 2 0 2 2 2 0 1 0 8 0 nd6 48 26 0 22 1 0 1 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 50 0 50 11 10 1 1 0 8 1 pffrent 40 2 0 2 1 1 0 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 54 0 41 1 0 1 1 0 8 0 pfstkey 112 54 0 41 1 0 1 1 0 8 0 pfstate 328 54 0 41 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 256 660 0 469 12 0 12 12 0 8 0 art_table 32 661 0 469 2 0 2 2 0 8 0 art_node 16 141 0 107 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 275 0 265 1 0 1 1 0 8 0 shmpl 112 136 0 24 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5248 0 3768 48 0 48 48 0 8 0 ffsino 272 5248 0 3768 100 1 99 99 0 8 0 nchpl 144 8880 0 7220 62 0 62 62 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 28519 0 28518 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 6 0 6 5 5 0 1 0 8 0 scxspl 192 26819 0 26818 18 16 2 6 0 8 1 sigapl 432 2631 0 2615 2 0 2 2 0 8 0 futexpl 56 26401 0 26400 1 0 1 1 0 8 0 knotepl 112 705 0 686 2 1 1 2 0 8 0 kqueuepl 104 529 0 527 1 0 1 1 0 8 0 pipepl 112 1578 0 1557 4 2 2 2 0 8 1 fdescpl 488 2632 0 2615 3 0 3 3 0 8 0 filepl 152 15330 0 15224 8 2 6 7 0 8 1 lockfpl 104 586 0 586 2 1 1 1 0 8 1 lockfspl 32 678 0 678 2 1 1 1 0 8 1 sessionpl 112 31 0 20 1 0 1 1 0 8 0 pgrppl 48 59 0 48 1 0 1 1 0 8 0 ucredpl 96 2660 0 2651 1 0 1 1 0 8 0 zombiepl 144 2615 0 2615 2 1 1 1 0 8 1 processpl 840 2648 0 2615 4 0 4 4 0 8 0 procpl 600 7713 0 7668 5 1 4 5 0 8 0 srpgc 64 66 0 66 9 9 0 1 0 8 0 sosppl 128 27 0 27 9 9 0 1 0 8 0 sockpl 384 2029 0 2009 5 1 4 4 0 8 2 mcl64k 65536 371 0 0 47 8 39 47 0 8 1 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 136 0 0 16 0 16 16 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 541 0 0 28 0 28 28 0 8 0 bufpl 256 11110 0 4086 440 0 440 440 0 8 0 anonpl 16 268389 0 258945 118 78 40 55 0 125 0 amapchunkpl 152 15748 0 15647 43 38 5 12 0 158 0 amappl16 192 13212 0 12716 106 81 25 37 0 8 0 amappl15 184 59 0 55 1 0 1 1 0 8 0 amappl14 176 360 0 357 2 1 1 1 0 8 0 amappl13 168 42 0 36 1 0 1 1 0 8 0 amappl12 160 1191 0 1191 2 2 0 1 0 8 0 amappl11 152 26 0 11 1 0 1 1 0 8 0 amappl10 144 375 0 370 1 0 1 1 0 8 0 amappl9 136 1503 0 1496 1 0 1 1 0 8 0 amappl8 128 1089 0 1068 1 0 1 1 0 8 0 amappl7 120 54 0 47 1 0 1 1 0 8 0 amappl6 112 91 0 80 1 0 1 1 0 8 0 amappl5 104 1267 0 1252 1 0 1 1 0 8 0 amappl4 96 2597 0 2564 2 1 1 2 0 8 0 amappl3 88 575 0 570 1 0 1 1 0 8 0 amappl2 80 21921 0 21858 2 0 2 2 0 8 0 amappl1 72 65468 0 65007 26 16 10 20 0 8 0 amappl 72 8059 0 8019 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 64 137 0 24 2 0 2 2 0 8 0 uaddrrnd 24 2632 0 2615 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2632 0 2615 1 0 1 1 0 8 0 vmmpekpl 168 25812 0 25789 2 0 2 2 0 8 0 vmmpepl 168 282322 0 280718 165 94 71 87 0 357 0 vmsppl 360 2631 0 2615 2 0 2 2 0 8 0 pdppl 4096 5272 0 5230 6 0 6 6 0 8 0 pvpl 32 720367 0 707047 240 124 116 140 0 265 8 pmappl 224 2631 0 2615 4 3 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 667 0 14 19 0 19 19 0 8 0