syzbot


KASAN: use-after-free Read in smk_write_relabel_self
Status: fixed on 2020/09/16 22:51
Reported-by: syzbot+e6416dabb497a650da40@syzkaller.appspotmail.com
Fix commit: beb4ee67 Smack: fix use-after-free in smk_write_relabel_self()
First crash: 111d, last: 111d

Cause bisection: the bug happens on the oldest tested release
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2020/06/04 22:28 upstream acf25aa6 6720fdef .config log report syz C casey@schaufler-ca.com, jmorris@namei.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com
ci-upstream-kasan-gce-smack-root 2020/06/04 21:54 upstream acf25aa6 6720fdef .config log report casey@schaufler-ca.com, jmorris@namei.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com