syzbot


KASAN: use-after-free Write in kernfs_path_from_node_locked
Status: upstream: reported C repro on 2020/11/30 08:40
Reported-by: syzbot+19e6dd9943972fa1c58a@syzkaller.appspotmail.com
First crash: 59d, last: 49d

Cause bisection: introduced by (bisect log) :
commit 0f818c4bc1f3dc0d6d0ea916e0ab30cf5e75f4c0
Author: Axel Rasmussen <axelrasmussen@google.com>
Date: Tue Nov 24 05:37:42 2020 +0000

  mm: mmap_lock: add tracepoints around lock acquisition

Crash: BUG: unable to handle kernel NULL pointer dereference in neigh_periodic_work (log)
Repro: C syz .config

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-linux-next-kasan-gce-root 2020/11/30 00:35 linux-next 6174f052 a0092f9d .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/12/06 20:30 linux-next 0eedceaf c521566d .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/12/06 11:42 linux-next 0eedceaf f12ba0c5 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/12/06 11:15 linux-next 0eedceaf f12ba0c5 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/12/06 10:38 linux-next 0eedceaf f12ba0c5 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/11/30 00:13 linux-next 6174f052 a0092f9d .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/11/26 10:59 linux-next 6147c83f 2f1cec62 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/11/26 10:50 linux-next 6147c83f 2f1cec62 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/11/26 08:38 linux-next 6147c83f 2f1cec62 .config log report info gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org