uvm_fault(0xfffffd807f00d108, 0x8, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xfffffd807f00d108, 0x8, 0, 1) -> e
VOP_ACCESS(4d6a341856ac3348,d,ffff80002100bc38,2ee5b00df58) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189
end trace frame: 0xffff8000210e7430, count: 0
ddb{1}> trace
VOP_ACCESS(4d6a341856ac3348,d,ffff80002100bc38,2ee5b00df58) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189
sys_unveil(c276bb18effd7af3,10,ffff80002100bc38) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925
syscall(f5b104860c8eb91) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline]
syscall(f5b104860c8eb91) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583
Xsyscall(6,0,8,0,2,2eb6c225010) at Xsyscall+0x128
end of kernel
end trace frame: 0x2ee5b00dfe0, count: -4
ddb{1}> show registers
rdi 0xffffffff813744ca VOP_ACCESS+0x3a
rsi 0x8e
rbp 0xffff8000210e6f10
rbx 0x2f
rdx 0x8f
rcx 0xffff800002b44000
rax 0xffff800002b44000
r8 0x40
r9 0xfffffd807f7c7840
r10 0xb02ece3cbe774c40
r11 0xa5ae7cf7ce0578fa
r12 0x100
r13 0
r14 0xffff80002100bc38
r15 0xfffffd807f7c7840
rip 0xffffffff813744da VOP_ACCESS+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000210e6ec0
ss 0x10
VOP_ACCESS+0x4a: movq 0x8(%r13),%rax
ddb{1}> show proc
PROC (syz-executor1) pid=460565 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
pri=76, usrpri=76, nice=20
forw=0xffffffffffffffff, list=0xffff80002100b788,0xffff80002100b2e8
process=0xffff800020fe5a50 user=0xffff8000210e2000, vmspace=0xfffffd807f00d108
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
25063 233139 57801 60929 2 0x10 syz-executor1
*25063 460565 57801 60929 7 0x4000010 syz-executor1
31450 486196 3210 0 7 0 syz-executor0
31450 8571 3210 0 3 0x4000080 fsleep syz-executor0
31450 60138 3210 0 3 0x4000080 ttyout syz-executor0
31450 63078 3210 0 3 0x4000080 ttyin syz-executor0
52386 154801 1 0 3 0x100083 ttyin getty
52149 246522 0 0 3 0x14200 bored sosplice
57801 19075 29520 0 3 0x82 nanosleep syz-executor1
3210 338477 29520 0 3 0x82 nanosleep syz-executor0
29520 497619 33845 0 3 0x82 thrsleep syz-fuzzer
29520 293770 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 270702 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 335210 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 316041 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 334467 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 30761 33845 0 3 0x4000082 kqread syz-fuzzer
29520 252267 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 480392 33845 0 3 0x4000082 thrsleep syz-fuzzer
29520 194045 33845 0 3 0x4000082 thrsleep syz-fuzzer
33845 286918 87001 0 3 0x10008a pause ksh
87001 55387 36000 0 3 0x92 select sshd
36000 261049 1 0 3 0x80 select sshd
64373 221264 8530 73 2 0x100090 syslogd
8530 351101 1 0 3 0x100082 netio syslogd
16378 122285 1 77 3 0x100090 poll dhclient
90173 208763 1 0 3 0x80 poll dhclient
6362 31197 0 0 2 0x14200 zerothread
77204 197440 0 0 3 0x14200 aiodoned aiodoned
21923 304634 0 0 3 0x14200 syncer update
65905 506706 0 0 3 0x14200 cleaner cleaner
62289 408558 0 0 3 0x14200 reaper reaper
89429 387357 0 0 3 0x14200 pgdaemon pagedaemon
51573 481313 0 0 3 0x14200 bored crynlk
85983 154789 0 0 3 0x14200 bored crypto
47254 265159 0 0 3 0x40014200 acpi0 acpi0
90697 145967 0 0 3 0x40014200 idle1
28354 42852 0 0 3 0x14200 bored softnet
80700 294887 0 0 3 0x14200 bored systqmp
38043 481492 0 0 3 0x14200 bored systq
16172 127004 0 0 3 0x40014200 bored softclock
54348 309217 0 0 3 0x40014200 idle0
1 373324 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper