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kernel: protection fault trap, code=NUM (9)

Status: upstream: reported on 2025/11/28 00:38
Reported-by: syzbot+b316677cd826c26c7b79@syzkaller.appspotmail.com
First crash: 79d, last: 3d08h
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd kernel: protection fault trap, code=NUM (3) -1 1 1426d 1426d 0/3 closed as invalid on 2022/03/22 11:48
openbsd kernel: protection fault trap, code=NUM (5) -1 2 1267d 1267d 0/3 closed as dup on 2022/08/29 15:02
openbsd kernel: protection fault trap, code=NUM (7) -1 6 488d 538d 0/3 auto-obsoleted due to no activity on 2025/01/13 22:53
openbsd kernel: protection fault trap, code=NUM (2) -1 C 16 1508d 1531d 0/3 closed as invalid on 2021/12/31 06:19
openbsd kernel: protection fault trap, code=NUM -1 1 1612d 1612d 0/3 closed as invalid on 2021/09/18 05:58
openbsd kernel: protection fault trap, code=NUM (8) -1 8 261d 373d 0/3 auto-obsoleted due to no activity on 2025/08/28 09:10
openbsd kernel: protection fault trap, code=NUM (4) -1 1 1389d 1389d 0/3 closed as invalid on 2022/04/28 06:52
openbsd kernel: protection fault trap, code=NUM (6) -1 42 646d 1193d 0/3 auto-obsoleted due to no activity on 2024/08/08 04:33

Sample crash report:
kernel: protection fault trap, code=0

Stopped at      witness_checkorder+0xb5:        movl    0x20(%r14),%r15d

ddb{0}> serialport: Connected to syzkaller.us-central1-b.ci-openbsd-multicore-5 port 1 (session ID: 748245da1c97eef6264ff7a6b8c503b59da0bff46da16afdd8905c7e2d9a78e0, active connections: 1).

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/12 15:36 openbsd 012cf974ca6d 018ebef2 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore kernel: protection fault trap, code=NUM
2026/01/13 07:01 openbsd a9df5e8d0934 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore kernel: protection fault trap, code=NUM
2025/11/28 00:38 openbsd 7de01a79e4ba e8331348 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid kernel: protection fault trap, code=NUM
* Struck through repros no longer work on HEAD.