syzbot


[upstream] BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter
Status: upstream: reported on 2019/02/21 14:52
Reported-by: syzbot+ca95b2b7aef9e7cbd6ab@syzkaller.appspotmail.com
Fix commit: ac5ceccc x86/unwind: Add hardcoded ORC entry for NULL f4f34e1b x86/unwind: Handle NULL pointer calls better in frame unwinder
Patched on: [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], missing on: [ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce]
First crash: 173d, last: 17d

Sample crash report:

All crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2019/01/29 17:39 upstream 4aa9fc2a aa432daf .config log report akpm@linux-foundation.org, amir73il@gmail.com, darrick.wong@oracle.com, david@fromorbit.com, hannes@cmpxchg.org, hughd@google.com, jrdr.linux@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org
ci-upstream-kasan-gce-smack-root 2019/03/01 21:06 upstream 7d762d69 68d9e495 .config log report akpm@linux-foundation.org, amir73il@gmail.com, darrick.wong@oracle.com, david@fromorbit.com, hannes@cmpxchg.org, hughd@google.com, jrdr.linux@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org
ci-upstream-kasan-gce-smack-root 2019/01/16 07:22 upstream 7939f8be b47fa78d .config log report akpm@linux-foundation.org, amir73il@gmail.com, darrick.wong@oracle.com, david@fromorbit.com, hannes@cmpxchg.org, hughd@google.com, jrdr.linux@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, willy@infradead.org
ci-upstream-kasan-gce-selinux-root 2018/10/16 06:54 upstream f0a7d188 8cd30605 .config log report ak@linux.intel.com, akpm@linux-foundation.org, arnd@arndb.de, dhowells@redhat.com, jack@suse.cz, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mawilcox@microsoft.com, mgorman@techsingularity.net
ci-upstream-linux-next-kasan-gce-root 2018/09/26 05:30 linux-next 8b7a6ebd b7e11289 .config log report akpm@linux-foundation.org, hannes@cmpxchg.org, jack@suse.cz, jrdr.linux@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mawilcox@microsoft.com, mgorman@techsingularity.net, sfr@canb.auug.org.au