uvm_fault(0xfffffd807f00cc60, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> ddb{0}> set $lines = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00cc60, 0x8, 0, 1) -> e VOP_ACCESS(ba8adda53d0ce933,d,ffff800020fe3080,cadd79db338) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210e9720, count: 0 ddb{0}> trace VOP_ACCESS(ba8adda53d0ce933,d,ffff800020fe3080,cadd79db338) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(fd3655ebc8caf3c4,10,ffff800020fe3080) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:924 syscall(94a69196801907c4) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(94a69196801907c4) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,cab82a3f010) at Xsyscall+0x128 end of kernel end trace frame: 0xcadd79db3c0, count: -4 ddb{0}> show registers rdi 0xffffffff81e79a0a VOP_ACCESS+0x3a rsi 0x8f rbp 0xffff8000210e9200 rbx 0x2f rdx 0x90 rcx 0xffff800006145000 rax 0xffff800006145000 r8 0x40 r9 0xfffffd807f7c7ae0 r10 0x4a565b865d45e8f8 r11 0x2e20a4295c570983 r12 0x100 r13 0 r14 0xffff800020fe3080 r15 0xfffffd807f7c7ae0 rip 0xffffffff81e79a1a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210e91b0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> show proc PROC (syz-executor1) pid=473632 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe3788,0xffffffff82236368 process=0xffff800020fe5a50 user=0xffff8000210e4000, vmspace=0xfffffd807f00cc60 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52551 210255 39044 60929 2 0x10 syz-executor1 *52551 473632 39044 60929 7 0x4000010 syz-executor1 39044 320493 43105 0 3 0x82 nanosleep syz-executor1 52545 221020 43105 0 7 0x2 syz-executor0 96248 170602 1 0 3 0x100083 ttyin getty 15084 149293 0 0 3 0x14200 bored sosplice 43105 31045 61839 0 3 0x82 thrsleep syz-fuzzer 43105 327449 61839 0 3 0x4000082 nanosleep syz-fuzzer 43105 313498 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 379851 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 89112 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 127976 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 311385 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 503537 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 289788 61839 0 3 0x4000082 kqread syz-fuzzer 43105 387526 61839 0 3 0x4000082 thrsleep syz-fuzzer 43105 503856 61839 0 3 0x4000082 thrsleep syz-fuzzer 61839 523453 97338 0 3 0x10008a pause ksh 97338 474429 32362 0 3 0x92 select sshd 32362 378509 1 0 3 0x80 select sshd 55574 336903 89281 73 2 0x100090 syslogd 89281 10320 1 0 3 0x100082 netio syslogd 77307 82968 1 77 3 0x100090 poll dhclient 7945 182940 1 0 3 0x80 poll dhclient 21863 105943 0 0 3 0x14200 pgzero zerothread 24219 139399 0 0 3 0x14200 aiodoned aiodoned 25126 184182 0 0 3 0x14200 syncer update 10444 476464 0 0 3 0x14200 cleaner cleaner 51863 71740 0 0 3 0x14200 reaper reaper 84030 187258 0 0 3 0x14200 pgdaemon pagedaemon 24450 374702 0 0 3 0x14200 bored crynlk 67592 58704 0 0 3 0x14200 bored crypto 20145 495060 0 0 3 0x40014200 acpi0 acpi0 32548 36682 0 0 3 0x40014200 idle1 69132 365338 0 0 3 0x14200 bored softnet 77214 230935 0 0 3 0x14200 bored systqmp 34588 507157 0 0 3 0x14200 bored systq 34418 350756 0 0 3 0x40014200 bored softclock 29944 409490 0 0 3 0x40014200 idle0 1 358933 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper