uvm_fault(0xffffff007f12a630, 0x6000118, 0, 1) -> e kernel: page fault trap, code=0 Stopped at _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12a630, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074440,1,ffff800000074440,ffffff0077ae7200) at _bpf_mtap+0x68 end trace frame: 0xffff800021168728, count: 0 ddb> trace _bpf_mtap(ffff800000074440,1,ffff800000074440,ffffff0077ae7200) at _bpf_mtap+0x68 bpf_mtap_ether(ffff8000211687d0,84,ffff800000074440) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff0077ae7200) at ifiq_input+0x105 vio_rxeof(ffff800000171050) at vio_rxeof+0x220 vio_rx_intr(ffff800000171050) at vio_rx_intr+0x23 intr_handler(0,ffff80000024bd00) at intr_handler+0x3f Xintr_ioapic_edge19_untramp(0,ffffffff81914210,0,18041969,0,a) at Xintr_ioapic_edge19_untramp+0x19f Xspllower(1fc0,ffff800002381000,0,dbeeddeaaf652cc9,ffffffff814e3731,10000) at Xspllower+0xc free(ffff800021168c40,ffff800002381000,0) at free+0x173 ufs_readdir(ffffffff81e3ce58) at ufs_readdir+0x33d VOP_READDIR(ffffff006e47d800,ffff8000210c3780,ffff800021168ce0,10000) at VOP_READDIR+0x65 sys_getdents(ffff800021168d80,ffff8000210c3780,ffff8000210a5660) at sys_getdents+0x173 syscall(0) at syscall+0x3e4 Xsyscall(6,63,7f7ffffeb350,63,0,6b934bbdb00) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeae70, count: -14 ddb> show registers rdi 0xffff800000074440 rsi 0xffffff0077ae7200 rbp 0xffff800021168698 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0x1 r10 0xffff800021168938 r11 0xffffffff817b8b80 bpf_mbuf_ldb r12 0xffff800000074440 r13 0x42 r14 0x1 r15 0 rip 0xffffffff817b7a08 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021168628 ss 0x10 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (syz-executor0) pid=428528 stat=onproc flags process=2 proc=0 pri=72, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff8000210c3528,0xffff8000ffffce28 process=0xffff8000210a5660 user=0xffff800021163000, vmspace=0xffffff007f12a630 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 17815 260021 1 0 3 0x100083 ttyin getty 78284 443534 0 0 3 0x14200 bored sosplice *19731 428528 14233 0 7 0x2 syz-executor0 63660 309617 14233 0 3 0x82 nanosleep syz-executor1 14233 107487 10888 0 3 0x82 thrsleep syz-fuzzer 14233 35350 10888 0 3 0x4000082 nanosleep syz-fuzzer 14233 343786 10888 0 3 0x4000082 thrsleep syz-fuzzer 14233 171273 10888 0 3 0x4000082 thrsleep syz-fuzzer 14233 2269 10888 0 3 0x4000082 thrsleep syz-fuzzer 14233 76127 10888 0 3 0x4000082 thrsleep syz-fuzzer 14233 196850 10888 0 3 0x4000082 kqread syz-fuzzer 10888 376605 39137 0 3 0x10008a pause ksh 39137 46387 81007 0 3 0x92 select sshd 81007 105937 1 0 3 0x80 select sshd 91036 206962 84922 73 2 0x100090 syslogd 84922 159945 1 0 3 0x100082 netio syslogd 81430 259481 1 77 3 0x100090 poll dhclient 59017 165176 1 0 3 0x80 poll dhclient 72978 49575 0 0 3 0x14200 pgzero zerothread 44250 385274 0 0 3 0x14200 aiodoned aiodoned 90250 116363 0 0 3 0x14200 syncer update 33956 259736 0 0 3 0x14200 cleaner cleaner 18291 446261 0 0 3 0x14200 reaper reaper 91730 480882 0 0 3 0x14200 pgdaemon pagedaemon 71104 236296 0 0 3 0x14200 bored crynlk 74842 186523 0 0 3 0x14200 bored crypto 3623 423939 0 0 3 0x40014200 acpi0 acpi0 59727 45108 0 0 3 0x14200 bored softnet 42272 417753 0 0 3 0x14200 bored systqmp 25155 129470 0 0 3 0x14200 bored systq 55738 473633 0 0 3 0x40014200 bored softclock 84238 286540 0 0 3 0x40014200 idle0 1 368689 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper