uvm_fault(0xffffffff8223bd48, 0xffff80000198e000, 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(0xffffffff8223bd48, 0xffff80000198e000, 0, 1) -> e memcpy(fffffd807dcaaaf8,ffff80000198df0d,0,fffffd807dcaaaf8,79ab3a03de03088c,ffff800020c41738) at memcpy+0x15 end trace frame: 0xffff800020c41640, count: 0 ddb{0}> trace memcpy(fffffd807dcaaaf8,ffff80000198df0d,0,fffffd807dcaaaf8,79ab3a03de03088c,ffff800020c41738) at memcpy+0x15 rtrequest(1,ffff800020c41738,0,ffff800020c41680,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000198df00,ffff800020c41730,ffff800020c41738,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806f0d5700,fffffd806ca0a790,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806ca0a790,9,fffffd806f0d5700,0,0,ffff800020b9a720) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806ca0a790,0,ffff800020c419f8,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b9a720,4,ffff800020c41ab8,0,ffff800020c41b80) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b9a720,ffff800020c41b98,ffff800020c41b80) at sys_sendto+0x92 syscall(ffff800020c41c30) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c41c30) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,de255972010) at Xsyscall+0x128 end of kernel end trace frame: 0xde4e75fc6b0, count: -10 ddb{0}> show registers rdi 0xffff80000198d3f0 rsi 0xffff80000198dffd rbp 0xffff800020c41530 rbx 0xffff80000198df0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff3f3 r8 0 r9 0x5 r10 0xd7633a93c6ae272f r11 0xffff80000198d300 r12 0xffff80000198d300 r13 0x100 r14 0 r15 0xfffffd807dcaaaf8 rip 0xffffffff81aac8f5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c414c8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=510976 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b9a4c8,0xffffffff82367ba0 process=0xffff800020b8c6a8 user=0xffff800020c3c000, vmspace=0xfffffd807f00cca8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69357 95487 84683 0 7 0 syz-executor.1 *69357 510976 84683 0 7 0x4000000 syz-executor.1 84683 227122 52794 0 3 0x82 nanosleep syz-executor.1 82800 363145 52794 0 2 0x2 syz-executor.0 52794 509104 52027 0 3 0x82 thrsleep syz-fuzzer 52794 312582 52027 0 3 0x4000082 nanosleep syz-fuzzer 52794 448702 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 391613 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 444004 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 296872 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 78054 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 35301 52027 0 3 0x4000082 kqread syz-fuzzer 52794 330869 52027 0 3 0x4000082 thrsleep syz-fuzzer 52794 391449 52027 0 3 0x4000082 thrsleep syz-fuzzer 52027 307939 57364 0 3 0x10008a pause ksh 57364 189107 79433 0 3 0x92 select sshd 66734 449763 1 0 3 0x100083 ttyin getty 79433 296431 1 0 3 0x80 select sshd 75374 33103 53333 74 3 0x100092 bpf pflogd 53333 132470 1 0 3 0x80 netio pflogd 3079 462685 11272 73 2 0x100090 syslogd 11272 398094 1 0 3 0x100082 netio syslogd 5653 318053 1 77 3 0x100090 poll dhclient 95727 107086 1 0 3 0x80 poll dhclient 75997 218670 0 0 3 0x14200 pgzero zerothread 11317 121916 0 0 3 0x14200 aiodoned aiodoned 37168 139178 0 0 3 0x14200 syncer update 91559 33373 0 0 3 0x14200 cleaner cleaner 94640 277445 0 0 3 0x14200 reaper reaper 70931 363529 0 0 3 0x14200 pgdaemon pagedaemon 9717 371472 0 0 3 0x14200 bored crynlk 78585 419188 0 0 3 0x14200 bored crypto 74099 200168 0 0 3 0x40014200 acpi0 acpi0 85543 117291 0 0 3 0x40014200 idle1 41619 500364 0 0 3 0x14200 bored softnet 20241 355886 0 0 3 0x14200 bored systqmp 703 114228 0 0 3 0x14200 bored systq 7480 464681 0 0 3 0x40014200 bored softclock 69532 360182 0 0 3 0x40014200 idle0 78792 436777 0 0 3 0x14200 bored smr 1 71888 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 69357 (syz-executor.1) thread 0xffff800020b9a720 (510976) exclusive rwlock netlock r = 0 (0xffffffff821d9d58) 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 (0xffffffff82396898) 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 82800 (syz-executor.0) thread 0xffff800020b15778 (363145) exclusive rrwlock inode r = 0 (0xfffffd80658b42c8) 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 (0xfffffd80687e1d60) 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 dounlinkat+0xa5 sys/kern/vfs_syscalls.c:1673 #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 9489 6396K 6404K 78643K 10628 0 0 pcb 27 9K 10K 78643K 167 0 0 rtable 103 4K 4K 78643K 311 0 0 ifaddr 49 11K 12K 78643K 80 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1476 0 0 iov 0 0K 12K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1197 75K 75K 78643K 1311 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 1K 78643K 392 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 352 0 0 proc 53 50K 71K 78643K 402 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 13 0 0 in_multi 33 2K 2K 78643K 69 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 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 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 219 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 82 20K 21K 78643K 1759 0 0 UVM aobj 2 2K 2K 78643K 2 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 16 0 0 NDP 9 0K 0K 78643K 25 0 0 temp 116 2366K 2431K 78643K 4128 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 280 116 0 109 1 0 1 1 0 8 0 plimitpl 152 21 0 13 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 71 0 30 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 19 0 19 1 1 0 1 0 8 0 tcpcb 544 44 0 40 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 ppxss 1128 2 0 2 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 16 0 7 1 0 1 1 0 8 0 pfstkey 112 16 0 7 1 0 1 1 0 8 0 pfstate 328 16 0 7 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 256 307 0 123 12 0 12 12 0 8 0 art_table 32 308 0 123 2 0 2 2 0 8 0 art_node 16 68 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 385 0 375 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1853 0 430 47 1 46 47 0 8 0 ffsino 272 1853 0 430 96 0 96 96 0 8 0 nchpl 144 2460 0 822 61 0 61 61 0 8 0 uvmvnodes 72 1960 0 0 36 0 36 36 0 8 0 vnodes 200 1960 0 0 104 0 104 104 0 8 0 namei 1024 7559 0 7559 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 6411 0 6411 9 6 3 6 0 8 3 sigapl 432 542 0 527 2 0 2 2 0 8 0 futexpl 56 3943 0 3943 1 0 1 1 0 8 1 knotepl 112 126 0 107 1 0 1 1 0 8 0 kqueuepl 104 29 0 27 1 0 1 1 0 8 0 pipepl 112 274 0 255 3 1 2 2 0 8 1 fdescpl 488 543 0 527 3 0 3 3 0 8 0 filepl 152 2967 0 2866 5 0 5 5 0 8 1 lockfpl 104 37 0 37 2 1 1 1 0 8 1 lockfspl 32 14 0 14 2 1 1 1 0 8 1 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 675 0 666 1 0 1 1 0 8 0 zombiepl 144 527 0 527 2 1 1 1 0 8 1 processpl 840 558 0 527 4 0 4 4 0 8 0 procpl 600 1048 0 1007 4 0 4 4 0 8 0 srpgc 64 19 0 19 2 1 1 1 0 8 1 sockpl 384 253 0 232 3 0 3 3 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 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 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 116 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 130 0 0 8 0 8 8 0 8 0 bufpl 256 6112 0 1143 311 0 311 311 0 8 0 anonpl 16 52108 0 44365 40 3 37 37 0 125 0 amapchunkpl 152 2194 0 2102 6 1 5 5 0 158 1 amappl16 192 1860 0 1399 24 0 24 24 0 8 0 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 60 0 55 2 1 1 1 0 8 0 amappl13 168 29 0 25 1 0 1 1 0 8 0 amappl12 160 22 0 20 1 0 1 1 0 8 0 amappl11 152 113 0 98 1 0 1 1 0 8 0 amappl10 144 81 0 76 1 0 1 1 0 8 0 amappl9 136 790 0 786 1 0 1 1 0 8 0 amappl8 128 353 0 337 1 0 1 1 0 8 0 amappl7 120 47 0 41 1 0 1 1 0 8 0 amappl6 112 133 0 127 1 0 1 1 0 8 0 amappl5 104 122 0 107 1 0 1 1 0 8 0 amappl4 96 776 0 747 2 1 1 2 0 8 0 amappl3 88 142 0 135 1 0 1 1 0 8 0 amappl2 80 3543 0 3489 2 0 2 2 0 8 0 amappl1 72 20848 0 20407 25 15 10 20 0 8 0 amappl 72 1311 0 1274 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 543 0 527 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 543 0 527 1 0 1 1 0 8 0 vmmpekpl 168 7759 0 7738 2 0 2 2 0 8 0 vmmpepl 168 64101 0 62640 101 21 80 80 0 357 16 vmsppl 360 542 0 527 2 0 2 2 0 8 0 pdppl 4096 1094 0 1054 6 0 6 6 0 8 0 pvpl 32 182077 0 171101 118 13 105 105 0 265 7 pmappl 224 542 0 527 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 460 0 3 14 0 14 14 0 8 0