uvm_fault(0xfffffd807f00d318, 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(0xfffffd807f00d318, 0x8, 0, 1) -> e VOP_ACCESS(b2a4603111668ab5,d,ffff800020fe2018,7de656c8978) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800021103ba0, count: 0 ddb{1}> trace VOP_ACCESS(b2a4603111668ab5,d,ffff800020fe2018,7de656c8978) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(b12bef07b28c6828,10,ffff800020fe2018) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(e1faed5d1e36c64c) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(e1faed5d1e36c64c) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,7dbef74d010) at Xsyscall+0x128 end of kernel end trace frame: 0x7de656c8a00, count: -4 ddb{1}> show registers rdi 0xffffffff813744ca VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff800021103680 rbx 0x2f rdx 0x8f rcx 0xffff800000b43000 rax 0xffff800000b43000 r8 0x40 r9 0xfffffd807f7c7780 r10 0x6838d11d63c8c3e8 r11 0x4943b32b8f36ea30 r12 0x100 r13 0 r14 0xffff800020fe2018 r15 0xfffffd807f7c7780 rip 0xffffffff813744da VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021103630 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{1}> show proc PROC (syz-executor1) pid=324746 stat=onproc flags process=10 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe2978,0xffffffff822529f8 process=0xffff80002101ba58 user=0xffff8000210fe000, vmspace=0xfffffd807f00d318 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94839 19348 5602 60929 7 0x10 syz-executor1 *94839 324746 5602 60929 7 0x4000010 syz-executor1 85233 221122 22107 0 3 0x80 nanosleep syz-executor0 85233 93672 22107 0 3 0x4000080 ttyin syz-executor0 85233 337361 22107 0 3 0x4000080 fsleep syz-executor0 22107 98506 65968 0 3 0x82 nanosleep syz-executor0 5602 329537 65968 0 3 0x82 nanosleep syz-executor1 24336 157840 1 0 3 0x100083 ttyin getty 45195 466646 0 0 3 0x14200 bored sosplice 65968 286906 75081 0 3 0x82 thrsleep syz-fuzzer 65968 238709 75081 0 3 0x4000082 nanosleep syz-fuzzer 65968 445401 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 169434 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 472405 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 324934 75081 0 3 0x4000082 kqread syz-fuzzer 65968 339180 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 192466 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 92011 75081 0 3 0x4000082 thrsleep syz-fuzzer 65968 154210 75081 0 3 0x4000082 thrsleep syz-fuzzer 75081 234956 83142 0 3 0x10008a pause ksh 83142 29716 10218 0 3 0x92 select sshd 10218 490778 1 0 3 0x80 select sshd 71620 328381 39026 73 2 0x100090 syslogd 39026 285347 1 0 3 0x100082 netio syslogd 48953 386925 1 77 3 0x100090 poll dhclient 23702 462978 1 0 3 0x80 poll dhclient 2833 349681 0 0 3 0x14200 pgzero zerothread 12765 87657 0 0 3 0x14200 aiodoned aiodoned 94916 222136 0 0 3 0x14200 syncer update 33190 432529 0 0 3 0x14200 cleaner cleaner 17427 71427 0 0 3 0x14200 reaper reaper 4557 170540 0 0 3 0x14200 pgdaemon pagedaemon 57903 435496 0 0 3 0x14200 bored crynlk 33988 122840 0 0 3 0x14200 bored crypto 31446 518429 0 0 3 0x40014200 acpi0 acpi0 18945 295561 0 0 3 0x40014200 idle1 95261 201187 0 0 3 0x14200 bored softnet 76335 222124 0 0 3 0x14200 bored systqmp 48159 366689 0 0 3 0x14200 bored systq 2422 166727 0 0 3 0x40014200 bored softclock 30476 345856 0 0 3 0x40014200 idle0 1 180022 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper