login: uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e ip_ctloutput(ffffff0068eb0718,ffff8000210c0720,ffffff006e708d88,ffff800021174ad8,ffffff0069793200) at ip_ctloutput+0x784 end trace frame: 0xffff800021174a80, count: 0 ddb> trace ip_ctloutput(ffffff0068eb0718,ffff8000210c0720,ffffff006e708d88,ffff800021174ad8,ffffff0069793200) at ip_ctloutput+0x784 sys_getsockopt(ffff800021174b60,ffff8000210c0720,ffff800021060620) at sys_getsockopt+0x13c syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffff66,0,5,235b9786010) at Xsyscall+0x128 end of kernel end trace frame: 0x237d78d7640, count: -4 ddb> show registers rdi 0 rsi 0xffffffff811b34f4 ip_ctloutput+0x784 rbp 0xffff800021174a20 rbx 0 rdx 0xffff800000acb000 rcx 0x5c rax 0xffff800000acb000 r8 0xffffff0069793200 r9 0 r10 0xc38e05c84beadf2b r11 0xffffffff8170d810 rip_ctloutput r12 0x1 r13 0 r14 0 r15 0xffffff0069793200 rip 0xffffffff811b34f4 ip_ctloutput+0x784 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000211749f0 ss 0x10 ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> show proc PROC (syz-executor1) pid=169759 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff8000210c12d8,0xffffffff81eafaa0 process=0xffff800021060620 user=0xffff80002116f000, vmspace=0xffffff007f12b948 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 71037 419908 26956 0 2 0 syz-executor1 *71037 169759 26956 0 7 0x4000000 syz-executor1 65152 214795 1 0 3 0x100083 ttyin getty 94928 143503 0 0 3 0x14200 bored sosplice 93833 485597 34480 0 3 0x82 nanosleep syz-executor0 26956 89686 34480 0 3 0x82 nanosleep syz-executor1 34480 124628 34659 0 3 0x82 thrsleep syz-fuzzer 34480 186089 34659 0 3 0x4000082 thrsleep syz-fuzzer 34480 329189 34659 0 3 0x4000082 thrsleep syz-fuzzer 34480 40123 34659 0 3 0x4000082 kqread syz-fuzzer 34480 371742 34659 0 3 0x4000082 thrsleep syz-fuzzer 34480 45982 34659 0 3 0x4000082 thrsleep syz-fuzzer 34480 87229 34659 0 3 0x4000082 thrsleep syz-fuzzer 34659 39919 95211 0 3 0x10008a pause ksh 95211 513404 6718 0 3 0x92 select sshd 6718 396791 1 0 3 0x80 select sshd 98992 287364 61333 73 2 0x100090 syslogd 61333 474120 1 0 3 0x100082 netio syslogd 71665 462858 1 77 3 0x100090 poll dhclient 67796 476150 1 0 3 0x80 poll dhclient 76036 133693 0 0 2 0x14200 zerothread 24385 10305 0 0 3 0x14200 aiodoned aiodoned 64798 488577 0 0 3 0x14200 syncer update 89252 408945 0 0 3 0x14200 cleaner cleaner 70295 290461 0 0 3 0x14200 reaper reaper 54564 194275 0 0 3 0x14200 pgdaemon pagedaemon 71720 247054 0 0 3 0x14200 bored crynlk 35577 23976 0 0 3 0x14200 bored crypto 65793 356967 0 0 3 0x40014200 acpi0 acpi0 31803 12687 0 0 3 0x14200 bored softnet 64135 444693 0 0 3 0x14200 bored systqmp 97976 343641 0 0 3 0x14200 bored systq 92414 455605 0 0 3 0x40014200 bored softclock 98455 157475 0 0 3 0x40014200 idle0 1 303922 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper