uvm_fault(0xfffffd806e9642e8, 0x0, 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(0xfffffd806e9642e8, 0x0, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80002200f080, count: 0 ddb{1}> trace memcpy() at memcpy+0x15 bpf_mtap(ffff800000a21800,fffffd806f348a00,2) at bpf_mtap+0x204 sys/net/bpf.c:1306 tun_dev_read(5d00,ffff80002200f368,10) at tun_dev_read+0x113 spec_read(ffff80002200f1b0) at spec_read+0xf1 sys/kern/spec_vnops.c:222 VOP_READ(fffffd806e5a91a8,ffff80002200f368,10,fffffd807f7bf720) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd80687b51e0,ffff80002200f368,0) at vn_read+0x124 sys/kern/vfs_vnops.c:375 dofilereadv(ffff80002277c028,f0,ffff80002200f368,0,ffff80002200f450) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80002277c028,ffff80002200f400,ffff80002200f450) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80002200f4d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002200f4d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96217f0a510, count: -10 ddb{1}> show registers rdi 0xffff800000a82016 rsi 0 rbp 0xffff80002200eff0 rbx 0xe rdx 0xe rcx 0x1 rax 0xffff800000a82016 r8 0xffff80002200f000 r9 0xffff800000a28664 r10 0xa5f1e63d62e205f1 r11 0xffff800000a82016 r12 0x24 r13 0xfffffd806f348a00 r14 0xe r15 0xffff800000a82016 rip 0xffffffff811668a5 memcpy+0x15 cs 0x8 rflags 0x10203 __ALIGN_SIZE+0xf203 rsp 0xffff80002200ef48 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=204989 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=67, nice=20 forw=0xffffffffffffffff, list=0xffff80002277c9e8,0xffffffff82684e30 process=0xffff800021ff6f90 user=0xffff80002200a000, vmspace=0xfffffd806e9642e8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61857 325705 69167 0 2 0 syz-executor.0 *61857 204989 69167 0 7 0x4000000 syz-executor.0 88201 329890 0 0 3 0x14200 acct acct 6315 10767 0 0 3 0x14280 nfsidl nfsio 53057 162485 0 0 3 0x14280 nfsidl nfsio 84500 450221 0 0 3 0x14280 nfsidl nfsio 35978 67413 0 0 3 0x14280 nfsidl nfsio 49394 40222 0 0 3 0x14280 nfsidl nfsio 21740 433922 0 0 3 0x14280 nfsidl nfsio 77805 70342 0 0 3 0x14280 nfsidl nfsio 98591 175558 0 0 3 0x14280 nfsidl nfsio 98201 433336 0 0 3 0x14280 nfsidl nfsio 87962 197818 0 0 3 0x14280 nfsidl nfsio 89381 22537 0 0 3 0x14280 nfsidl nfsio 48683 329325 0 0 3 0x14280 nfsidl nfsio 57667 395947 0 0 3 0x14280 nfsidl nfsio 22321 154768 0 0 3 0x14280 nfsidl nfsio 15666 409907 0 0 3 0x14280 nfsidl nfsio 49724 47257 0 0 3 0x14280 nfsidl nfsio 98431 428158 0 0 3 0x14280 nfsidl nfsio 54305 246225 0 0 3 0x14280 nfsidl nfsio 67928 441552 0 0 3 0x14280 nfsidl nfsio 77505 359584 0 0 3 0x14280 nfsidl nfsio 91072 286550 0 0 3 0x14200 bored sosplice 54059 391641 35278 0 3 0x82 piperd syz-executor.1 69167 47584 35278 0 3 0x82 nanosleep syz-executor.0 35278 430770 65587 0 3 0x82 thrsleep syz-fuzzer 35278 351692 65587 0 3 0x4000082 nanosleep syz-fuzzer 35278 524276 65587 0 3 0x4000082 thrsleep syz-fuzzer 35278 179528 65587 0 7 0x4000002 syz-fuzzer 35278 316118 65587 0 3 0x4000082 thrsleep syz-fuzzer 35278 239868 65587 0 3 0x4000082 kqread syz-fuzzer 35278 298560 65587 0 3 0x4000082 thrsleep syz-fuzzer 35278 108966 65587 0 3 0x4000082 thrsleep syz-fuzzer 35278 508655 65587 0 3 0x4000082 thrsleep syz-fuzzer 35278 209467 65587 0 3 0x4000082 thrsleep syz-fuzzer 65587 172807 5038 0 3 0x10008a pause ksh 5038 221189 76448 0 3 0x92 select sshd 95065 141031 1 0 3 0x100083 ttyin getty 76448 347385 1 0 3 0x80 select sshd 60918 448976 25347 74 3 0x100092 bpf pflogd 25347 2105 1 0 3 0x80 netio pflogd 55486 457081 28997 73 3 0x100090 kqread syslogd 28997 182697 1 0 3 0x100082 netio syslogd 34603 58178 1 77 3 0x100090 poll dhclient 47985 517585 1 0 3 0x80 poll dhclient 2799 491488 0 0 3 0x14200 bored smr 53442 428912 0 0 2 0x14200 zerothread 44329 108198 0 0 3 0x14200 aiodoned aiodoned 48646 292702 0 0 3 0x14200 syncer update 4371 387832 0 0 3 0x14200 cleaner cleaner 32535 277226 0 0 3 0x14200 reaper reaper 2800 54299 0 0 3 0x14200 pgdaemon pagedaemon 75172 498356 0 0 3 0x14200 bored crynlk 82113 176946 0 0 3 0x14200 bored crypto 5217 75067 0 0 3 0x40014200 acpi0 acpi0 94841 136454 0 0 3 0x40014200 idle1 90049 58311 0 0 3 0x14200 bored softnet 54890 82569 0 0 3 0x14200 bored systqmp 46542 512419 0 0 3 0x14200 bored systq 34799 151303 0 0 3 0x40014200 bored softclock 96875 234665 0 0 3 0x40014200 idle0 1 364733 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &bd->bd_mtx r = 0 (0xffff800000a36c18) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 bpf_mtap+0x1ee sys/net/bpf.c:1305 #4 tun_dev_read+0x113 #5 spec_read+0xf1 sys/kern/spec_vnops.c:222 #6 VOP_READ+0xbf sys/kern/vfs_vops.c:247 #7 vn_read+0x124 sys/kern/vfs_vnops.c:375 #8 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #9 sys_read+0x83 sys/kern/sys_generic.c:157 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 Process 61857 (syz-executor.0) thread 0xffff80002277c028 (204989) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8268a470) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 vn_read+0x45 sys/kern/vfs_vnops.c:357 #2 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #3 sys_read+0x83 sys/kern/sys_generic.c:157 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 exclusive mutex &bd->bd_mtx r = 0 (0xffff800000a36c18) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 bpf_mtap+0x1ee sys/net/bpf.c:1305 #4 tun_dev_read+0x113 #5 spec_read+0xf1 sys/kern/spec_vnops.c:222 #6 VOP_READ+0xbf sys/kern/vfs_vops.c:247 #7 vn_read+0x124 sys/kern/vfs_vnops.c:375 #8 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #9 sys_read+0x83 sys/kern/sys_generic.c:157 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9536 6492K 6686K 78643K 11258 0 pcb 13 8K 8K 78643K 99 0 rtable 112 4K 4K 78643K 302 0 ifaddr 89 17K 18K 78643K 130 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1499 0 iov 0 0K 16K 78643K 82 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1457 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 129 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 420 0 sigio 0 0K 0K 78643K 5 0 proc 61 63K 95K 78643K 484 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 245 0 in_multi 76 3K 3K 78643K 140 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 244 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 129 55K 71K 78643K 2457 0 UVM aobj 16 4K 4K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 70 0 NDP 13 0K 0K 78643K 24 0 temp 125 3042K 3106K 78643K 10588 0 kqueue 3 4K 18K 78643K 44 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 64 0 18 2 0 2 2 0 8 0 unpcb 120 283 0 273 1 0 1 1 0 8 0 syncache 264 14 0 14 4 4 0 1 0 8 0 tcpqe 32 165 0 165 1 1 0 1 0 8 0 tcpcb 544 480 0 476 1 0 1 1 0 8 0 inpcb 280 786 0 777 9 7 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 11 0 5 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 2 0 1 0 8 0 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 3 0 3 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 43 1 0 1 1 0 8 0 pfstkey 112 54 0 43 1 0 1 1 0 8 0 pfstate 328 54 0 43 3 1 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 256 274 0 79 13 0 13 13 0 8 0 art_table 32 275 0 79 2 0 2 2 0 8 0 art_node 16 63 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 8 1 0 1 1 0 8 0 semapl 112 127 0 117 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2020 0 612 89 0 89 89 0 8 0 ffsino 272 2020 0 612 95 0 95 95 0 8 0 nchpl 144 2811 0 1200 62 2 60 61 0 8 0 uvmvnodes 72 2210 0 0 41 0 41 41 0 8 0 vnodes 208 2210 0 0 117 0 117 117 0 8 0 namei 1024 8618 0 8618 3 2 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 5 1 0 1 1 0 8 0 scxspl 192 7893 0 7893 13 12 1 7 0 8 1 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 424 657 0 604 6 0 6 6 0 8 0 futexpl 56 8364 0 8364 3 2 1 1 0 8 1 knotepl 112 115 0 96 1 0 1 1 0 8 0 kqueuepl 144 76 0 72 1 0 1 1 0 8 0 pipelkpl 48 127 0 117 1 0 1 1 0 8 0 pipepl 120 254 0 235 1 0 1 1 0 8 0 fdescpl 496 620 0 604 3 0 3 3 0 8 0 filepl 152 4604 0 4502 5 0 5 5 0 8 1 lockfpl 104 101 0 100 1 0 1 1 0 8 0 lockfspl 48 33 0 32 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 28 0 17 1 0 1 1 0 8 0 ucredpl 96 1141 0 1132 1 0 1 1 0 8 0 zombiepl 144 604 0 604 1 0 1 1 0 8 1 processpl 984 657 0 604 7 0 7 7 0 8 0 procpl 624 1676 0 1613 6 0 6 6 0 8 0 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 400 1107 0 1088 6 3 3 4 0 8 1 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 207 0 0 25 3 22 25 0 8 0 mtagpl 80 48 0 0 1 0 1 1 0 8 0 mbufpl 256 297 0 0 13 0 13 13 0 8 0 bufpl 280 4249 0 136 294 0 294 294 0 8 0 anonpl 16 76982 0 62354 85 24 61 69 0 124 0 amapchunkpl 152 4538 0 4403 28 21 7 20 0 158 0 amappl16 192 3101 0 2288 60 19 41 47 0 8 0 amappl15 184 342 0 338 1 0 1 1 0 8 0 amappl14 176 34 0 28 1 0 1 1 0 8 0 amappl13 168 30 0 27 1 0 1 1 0 8 0 amappl12 160 17 0 13 1 0 1 1 0 8 0 amappl11 152 59 0 44 1 0 1 1 0 8 0 amappl10 144 20 0 15 1 0 1 1 0 8 0 amappl9 136 436 0 434 1 0 1 1 0 8 0 amappl8 128 409 0 372 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 27 0 20 1 0 1 1 0 8 0 amappl5 104 516 0 500 1 0 1 1 0 8 0 amappl4 96 497 0 463 1 0 1 1 0 8 0 amappl3 88 124 0 118 1 0 1 1 0 8 0 amappl2 80 4358 0 4284 2 0 2 2 0 8 0 amappl1 72 23433 0 22997 23 12 11 18 0 8 0 amappl 80 1913 0 1867 2 0 2 2 0 84 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 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 628 0 609 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 628 0 609 1 0 1 1 0 8 0 vmmpekpl 168 9125 0 9092 2 0 2 2 0 8 0 vmmpepl 168 82889 0 80907 110 19 91 102 0 357 0 vmsppl 368 627 0 609 2 0 2 2 0 8 0 pdppl 4096 1264 0 1221 6 0 6 6 0 8 0 pvpl 32 235513 0 217648 207 58 149 168 0 265 0 pmappl 232 627 0 609 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 11 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff824b2ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0xc0019e0618, count: -3 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> trace memcpy() at memcpy+0x15 bpf_mtap(ffff800000a21800,fffffd806f348a00,2) at bpf_mtap+0x204 sys/net/bpf.c:1306 tun_dev_read(5d00,ffff80002200f368,10) at tun_dev_read+0x113 spec_read(ffff80002200f1b0) at spec_read+0xf1 sys/kern/spec_vnops.c:222 VOP_READ(fffffd806e5a91a8,ffff80002200f368,10,fffffd807f7bf720) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd80687b51e0,ffff80002200f368,0) at vn_read+0x124 sys/kern/vfs_vnops.c:375 dofilereadv(ffff80002277c028,f0,ffff80002200f368,0,ffff80002200f450) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80002277c028,ffff80002200f400,ffff80002200f450) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80002200f4d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002200f4d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96217f0a510, count: -10