syzbot


KASAN: use-after-free Read in ceph_mdsc_destroy
Status: upstream: reported on 2020/07/23 06:27
Reported-by: syzbot+b57f46d8d6ea51960b8c@syzkaller.appspotmail.com
Fix commit: ceph: fix use-after-free for fsc->mdsc
Patched on: [ci-upstream-linux-next-kasan-gce-root], missing on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-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-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb]
First crash: 23d, last: 3d16h

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/08/08 02:44 upstream 5631c5e0 ff51e522 .config log report ceph-devel@vger.kernel.org, idryomov@gmail.com, jlayton@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-root 2020/07/31 16:27 upstream d8b9faec d895b3be .config log report ceph-devel@vger.kernel.org, idryomov@gmail.com, jlayton@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2020/07/19 12:39 upstream f932d58a 9c812472 .config log report ceph-devel@vger.kernel.org, idryomov@gmail.com, jlayton@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/07/26 12:02 linux-next 26027945 51265195 .config log report ceph-devel@vger.kernel.org, idryomov@gmail.com, jlayton@kernel.org, linux-kernel@vger.kernel.org