uvm_fault(0xfffffd807f00c528, 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(0xfffffd807f00c528, 0x8, 0, 1) -> e VOP_ACCESS(b1a6f87f076e50bd,d,ffff800020fe2720,cf1feb0b178) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210b5dd0, count: 0 ddb{1}> trace VOP_ACCESS(b1a6f87f076e50bd,d,ffff800020fe2720,cf1feb0b178) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(221e797678e867d4,10,ffff800020fe2720) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:924 syscall(a968dea900f65cb3) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(a968dea900f65cb3) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,cef556ac010) at Xsyscall+0x128 end of kernel end trace frame: 0xcf1feb0b200, count: -4 ddb{1}> show registers rdi 0xffffffff81e79a0a VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff8000210b58b0 rbx 0x2f rdx 0x8f rcx 0xffff800001343000 rax 0xffff800001343000 r8 0x40 r9 0xfffffd807f7c78a0 r10 0xcedec07b2db4461b r11 0xba8f64301613b553 r12 0x100 r13 0 r14 0xffff800020fe2720 r15 0xfffffd807f7c78a0 rip 0xffffffff81e79a1a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210b5860 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{1}> show proc PROC (syz-executor0) pid=43912 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe2978,0xffffffff82236368 process=0xffff80002101ba58 user=0xffff8000210b0000, vmspace=0xfffffd807f00c528 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44622 344367 25623 60929 7 0x10 syz-executor0 *44622 43912 25623 60929 7 0x4000010 syz-executor0 25623 501665 58791 0 3 0x82 nanosleep syz-executor0 28019 178265 58791 0 3 0x2 biowait syz-executor1 20051 371292 1 0 3 0x100083 ttyin getty 95505 453032 0 0 3 0x14200 bored sosplice 58791 84944 25250 0 3 0x82 thrsleep syz-fuzzer 58791 70295 25250 0 3 0x4000082 nanosleep syz-fuzzer 58791 1910 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 239642 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 502931 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 124775 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 66163 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 4288 25250 0 3 0x4000082 thrsleep syz-fuzzer 58791 391526 25250 0 3 0x4000082 kqread syz-fuzzer 58791 126396 25250 0 3 0x4000082 thrsleep syz-fuzzer 25250 433106 9255 0 3 0x10008a pause ksh 9255 497175 93062 0 3 0x92 select sshd 93062 350553 1 0 3 0x80 select sshd 16430 26281 27188 73 2 0x100090 syslogd 27188 452740 1 0 3 0x100082 netio syslogd 58768 456749 1 77 3 0x100090 poll dhclient 92215 286978 1 0 3 0x80 poll dhclient 31895 431735 0 0 3 0x14200 pgzero zerothread 64828 207656 0 0 3 0x14200 aiodoned aiodoned 80932 419189 0 0 3 0x14200 syncer update 69212 44931 0 0 3 0x14200 cleaner cleaner 91714 374566 0 0 3 0x14200 reaper reaper 85217 309683 0 0 3 0x14200 pgdaemon pagedaemon 67736 165313 0 0 3 0x14200 bored crynlk 25946 481000 0 0 3 0x14200 bored crypto 23390 137464 0 0 3 0x40014200 acpi0 acpi0 56911 70830 0 0 3 0x40014200 idle1 25391 20367 0 0 3 0x14200 bored softnet 40527 395243 0 0 3 0x14200 bored systqmp 83107 371390 0 0 3 0x14200 bored systq 39160 375540 0 0 3 0x40014200 bored softclock 29941 410341 0 0 3 0x40014200 idle0 1 344057 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper