login: uvm_fault(0xfffffd803f015e70, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f015e70, 0x8, 0, 1) -> e VOP_ACCESS(908cd4dc8541c107,d,ffff80001496dc30,ffff80001495add0) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff80001495ace0, count: 0 ddb> trace VOP_ACCESS(908cd4dc8541c107,d,ffff80001496dc30,ffff80001495add0) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(53ddb3f89635c758,10,ffff80001496dc30) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(59e3d498b77ea3ad) at syscall+0x528 Xsyscall(6,0,8,0,2,8ead884c010) at Xsyscall+0x128 end of kernel end trace frame: 0x8ed28882110, count: -4 ddb> show registers rdi 0xffffffff81add1fa VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff80001495a7c0 rbx 0x2f rdx 0x85 rcx 0xffff800000939000 rax 0xffff800000939000 r8 0x40 r9 0xfffffd803f7c77e0 r10 0x6f8f69cb88edef9f r11 0x59b3eb38834bae1e r12 0x100 r13 0 r14 0xffff80001496dc30 r15 0xfffffd803f7c77e0 rip 0xffffffff81add20a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001495a770 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor1) pid=226575 stat=onproc flags process=10 proc=4000000 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff80001496d078,0xffffffff82206ba8 process=0xffff8000149b2d40 user=0xffff800014955000, vmspace=0xfffffd803f015e70 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 74273 208090 23333 60929 2 0x10 syz-executor1 *74273 226575 23333 60929 7 0x4000010 syz-executor1 44267 321539 1 0 3 0x100083 ttyin getty 85350 179142 0 0 3 0x14200 bored sosplice 31102 165452 77341 0 2 0x2 syz-executor0 23333 401481 77341 0 3 0x82 nanosleep syz-executor1 77341 216099 88296 0 3 0x82 thrsleep syz-fuzzer 77341 299723 88296 0 3 0x4000082 thrsleep syz-fuzzer 77341 40346 88296 0 3 0x4000082 thrsleep syz-fuzzer 77341 409281 88296 0 3 0x4000082 kqread syz-fuzzer 77341 262227 88296 0 3 0x4000082 thrsleep syz-fuzzer 77341 464377 88296 0 3 0x4000082 thrsleep syz-fuzzer 77341 121020 88296 0 3 0x4000082 thrsleep syz-fuzzer 88296 382124 39322 0 3 0x10008a pause ksh 39322 199076 74233 0 3 0x92 select sshd 74233 297986 1 0 3 0x80 select sshd 76985 521695 49169 73 2 0x100090 syslogd 49169 265285 1 0 3 0x100082 netio syslogd 96470 258820 1 77 3 0x100090 poll dhclient 52004 375386 1 0 3 0x80 poll dhclient 52471 506063 0 0 2 0x14200 zerothread 27636 399864 0 0 3 0x14200 aiodoned aiodoned 81488 452925 0 0 3 0x14200 syncer update 8710 173876 0 0 3 0x14200 cleaner cleaner 53345 500809 0 0 3 0x14200 reaper reaper 35484 79013 0 0 3 0x14200 pgdaemon pagedaemon 4650 433890 0 0 3 0x14200 bored crynlk 64793 142427 0 0 3 0x14200 bored crypto 19997 436918 0 0 3 0x40014200 acpi0 acpi0 51096 215069 0 0 3 0x14200 bored softnet 25761 160314 0 0 3 0x14200 bored systqmp 75064 108128 0 0 3 0x14200 bored systq 22650 153538 0 0 3 0x40014200 bored softclock 44233 139364 0 0 3 0x40014200 idle0 1 16482 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper