uvm_fault(0xffffff003f12bc60, 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(0xffffff003f12bc60, 0x6000118, 0, 1) -> e _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff00351f5900) at _bpf_mtap+0x68 end trace frame: 0xffff800014ad6d80, count: 0 ddb> trace _bpf_mtap(ffff800000074340,1,ffff800000074340,ffffff00351f5900) at _bpf_mtap+0x68 bpf_mtap_ether(ffff800014ad6e28,84,ffff800000074340) at bpf_mtap_ether+0xeb ifiq_input(ffff800000171050,ffff800000171290,ffffff00351f5500) at ifiq_input+0x105 vio_rxeof(ffff800000171050) at vio_rxeof+0x220 vio_rx_intr(ffffffff) at vio_rx_intr+0x23 virtio_check_vqs(ffff80000001c300) at virtio_check_vqs+0x166 intr_handler(0,ffff80000024b980) at intr_handler+0x3f Xintr_ioapic_edge19_untramp(0,d164f57f122,0,0,d187caf92e0,0) at Xintr_ioapic_edge19_untramp+0x19f end of kernel end trace frame: 0x7f7ffffd7ca0, count: -8 ddb> show registers rdi 0xffff800000074340 rsi 0xffffff00351f5900 rbp 0xffff800014ad6cf0 rbx 0x6000100 __kernel_end_phys+0x4000100 rdx 0x1 rcx 0 rax 0x42 r8 0x2 r9 0 r10 0 r11 0xffffffff81064860 _bus_dmamap_unload r12 0xffff800000074340 r13 0x42 r14 0x1 r15 0 rip 0xffffffff8155fd78 _bpf_mtap+0x68 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800014ad6c80 ss 0 _bpf_mtap+0x68: movl 0x18(%rbx),%r13d ddb> show proc PROC (syz-executor1) pid=169956 stat=onproc flags process=0 proc=0 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffc008,0xffff8000ffffd2d8 process=0xffff800014a15fd8 user=0xffff800014ad1000, vmspace=0xffffff003f12bc60 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=1 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *96871 169956 77300 0 7 0 syz-executor1 96871 17481 77300 0 3 0x4000000 biowait syz-executor1 30784 147415 0 0 3 0x14200 bored sosplice 77300 38868 81121 0 3 0x82 nanosleep syz-executor1 34276 484164 81121 0 3 0x2 biowait syz-executor0 81121 152786 75106 0 3 0x82 thrsleep syz-fuzzer 81121 256339 75106 0 3 0x4000082 nanosleep syz-fuzzer 81121 366704 75106 0 3 0x4000082 thrsleep syz-fuzzer 81121 431319 75106 0 3 0x4000082 thrsleep syz-fuzzer 81121 485762 75106 0 3 0x4000082 thrsleep syz-fuzzer 81121 325020 75106 0 3 0x4000082 thrsleep syz-fuzzer 81121 275599 75106 0 3 0x4000082 kqread syz-fuzzer 75106 69053 55294 0 3 0x10008a pause ksh 55294 102639 11391 0 3 0x92 select sshd 4821 169744 1 0 3 0x100083 ttyin getty 11391 375280 1 0 3 0x80 select sshd 865 128733 64848 73 2 0x100090 syslogd 64848 192951 1 0 3 0x100082 netio syslogd 14419 321073 1 77 3 0x100090 poll dhclient 22499 77932 1 0 3 0x80 poll dhclient 84082 143005 0 0 2 0x14200 zerothread 60243 199021 0 0 3 0x14200 aiodoned aiodoned 10506 243580 0 0 3 0x14200 syncer update 30379 86330 0 0 3 0x14200 cleaner cleaner 76889 262238 0 0 3 0x14200 reaper reaper 30885 509440 0 0 3 0x14200 pgdaemon pagedaemon 15838 275021 0 0 3 0x14200 bored crynlk 76825 173585 0 0 3 0x14200 bored crypto 86035 33423 0 0 3 0x40014200 acpi0 acpi0 38445 173900 0 0 3 0x14200 bored softnet 22707 465206 0 0 3 0x14200 bored systqmp 83111 273881 0 0 3 0x14200 bored systq 94017 41323 0 0 3 0x40014200 bored softclock 44190 426556 0 0 3 0x40014200 idle0 1 153206 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper