WARNING: ODEBUG bug in get_signal
Status: upstream: reported syz repro on 2020/08/27 07:58
First crash: 389d, last: 381d

Cause bisection: introduced by (bisect log) :
commit a9ed4a6560b8562b7e2e2bed9527e88001f7b682
Author: Marc Zyngier <>
Date: Wed Aug 19 16:12:17 2020 +0000

  epoll: Keep a reference on files added to the check list

Crash: WARNING in corrupted (log)
Repro: syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit 4b04e0decd2518e54e3f371abf3d883b3198663d
Author: Sumanth Korikkar <>
Date: Mon Aug 17 07:27:54 2020 +0000

  perf test: Fix basic bpf filtering test

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: ODEBUG bug in get_signal 1 379d 379d 0/1 auto-closed as invalid on 2021/01/03 14:38
linux-4.19 WARNING: ODEBUG bug in get_signal syz done 3 379d 388d 1/1 fixed on 2020/10/07 06:25

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/08/27 10:56 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-root 2020/08/27 09:16 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-smack-root 2020/08/27 08:10 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-386 2020/08/27 05:40 upstream 15bc20c6af4c 318430cb .config log report syz
ci-upstream-net-kasan-gce 2020/09/03 18:49 net-next 22b330b622e3 abf9ba4f .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/09/01 08:19 linux-next b36c969764ab d5a3ae1f .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/08/27 04:51 linux-next f37be72473a0 318430cb .config log report syz
ci-upstream-net-this-kasan-gce 2020/09/03 21:25 net 8b4a11c67da5 abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/08/26 21:41 net-next ea416e277f09 318430cb .config log report