uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ip_pcbopts+0x19: movq 0(%r14),%rdi ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e ip_pcbopts(ffffff006e70cd88,ffffff0076755400) at ip_pcbopts+0x19 end trace frame: 0xffff800021184bc0, count: 0 ddb> trace ip_pcbopts(ffffff006e70cd88,ffffff0076755400) at ip_pcbopts+0x19 sosetopt(ffffff00614d82d8,ffff8000210c39d8,ffffff0076755400,ffffff006e70cd88) at sosetopt+0xbf sys_setsockopt(ffff800021184ce0,ffff8000210c39d8,ffff8000210a5660) at sys_setsockopt+0x1aa syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffe4,0,5,c7661f1c010) at Xsyscall+0x128 end of kernel end trace frame: 0xc7906e29e00, count: -5 ddb> show registers rdi 0xd0 rsi 0xffffffff81798609 ip_pcbopts+0x19 rbp 0xffff800021184b70 rbx 0xffffffff813befd0 rip_ctloutput rdx 0xffff800000acb000 rcx 0x5e rax 0xffff800000acb000 r8 0xffffff0076755400 r9 0 r10 0x3772e5283c0106a8 r11 0xffffffff813befd0 rip_ctloutput r12 0x1 r13 0 r14 0xd0 r15 0xffffff0076755400 rip 0xffffffff81798609 ip_pcbopts+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021184b40 ss 0x10 ip_pcbopts+0x19: movq 0(%r14),%rdi ddb> show proc PROC (syz-executor1) pid=172029 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000210c32d0,0xffffffff81e8ea18 process=0xffff8000210a5660 user=0xffff80002117f000, vmspace=0xffffff007f12b948 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 86972 493248 25912 0 2 0 syz-executor1 *86972 172029 25912 0 7 0x4000000 syz-executor1 61176 331250 51853 0 2 0x482 syz-executor0 25912 169973 51853 0 2 0x482 syz-executor1 66964 323089 1 0 3 0x100083 ttyin getty 14649 28153 0 0 3 0x14200 bored sosplice 51853 285467 24686 0 3 0x82 thrsleep syz-fuzzer 51853 461980 24686 0 3 0x4000082 nanosleep syz-fuzzer 51853 269281 24686 0 3 0x4000082 thrsleep syz-fuzzer 51853 84881 24686 0 3 0x4000082 kqread syz-fuzzer 51853 344327 24686 0 3 0x4000082 thrsleep syz-fuzzer 51853 227703 24686 0 3 0x4000082 thrsleep syz-fuzzer 51853 259197 24686 0 3 0x4000082 thrsleep syz-fuzzer 51853 200042 24686 0 3 0x4000082 thrsleep syz-fuzzer 24686 504470 9914 0 3 0x10008a pause ksh 9914 406187 33240 0 3 0x92 select sshd 33240 26801 1 0 3 0x80 select sshd 83889 159519 64026 73 2 0x100090 syslogd 64026 212232 1 0 3 0x100082 netio syslogd 19004 145543 1 77 3 0x100090 poll dhclient 35476 88075 1 0 3 0x80 poll dhclient 74052 73918 0 0 2 0x14200 zerothread 87179 429542 0 0 3 0x14200 aiodoned aiodoned 68206 202268 0 0 3 0x14200 syncer update 40919 409649 0 0 3 0x14200 cleaner cleaner 46048 436768 0 0 3 0x14200 reaper reaper 16589 264518 0 0 3 0x14200 pgdaemon pagedaemon 3422 387293 0 0 3 0x14200 bored crynlk 7410 374751 0 0 3 0x14200 bored crypto 86779 506543 0 0 3 0x40014200 acpi0 acpi0 32351 41247 0 0 3 0x14200 bored softnet 62416 355448 0 0 3 0x14200 bored systqmp 92465 300371 0 0 3 0x14200 bored systq 82483 266538 0 0 3 0x40014200 bored softclock 22217 213610 0 0 3 0x40014200 idle0 1 392615 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper