syzbot


KASAN: use-after-free Write in fsnotify_detach_connector_from_object
Status: upstream: reported C repro on 2020/06/12 09:24
Reported-by: syzbot+7d2debdcdb3cb93c1e5e@syzkaller.appspotmail.com
Fix commit: ef1548ad proc: Use new_inode not new_inode_pseudo
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 26d, last: 18d

Cause bisection: introduced by (bisect log):

commit 76313c70c52f930af4afd21684509ca52297ea71
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Wed Feb 19 16:37:15 2020 +0000

  uml: Create a private mount of proc for mconsole

Crash: general protection fault in batadv_iv_ogm_schedule_buff (log)
Repro: C syz .config

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2020/06/08 10:56 upstream 7ae77150 7751efd0 .config log report syz C amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2020/06/08 09:50 upstream 7ae77150 7751efd0 .config log report syz C amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2020/06/16 21:09 upstream 7ae77150 559fbe2d .config log report amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce 2020/06/08 09:19 upstream 7ae77150 7751efd0 .config log report amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org