syzbot


KASAN: use-after-free Read in blkdev_direct_IO
Status: fixed on 2020/06/30 18:57
Reported-by: syzbot+0a0e5f37746013dc7476@syzkaller.appspotmail.com
Fix commit: 0eb6ddfb block: Fix __blkdev_direct_IO() for bio fragments
First crash: 347d, last: 338d

Cause bisection: introduced by (bisect log):

commit b9a1e627405d68d475a3c1f35e685ccfb5bbe668
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Thu Jul 4 00:21:13 2019 +0000

  hsr: implement dellink to clean up resources

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

Fix bisection: failed (bisect log)

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce 2019/08/02 16:44 upstream 1e78030e 835dffe7 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/08/07 12:14 upstream 33920f1e cdde7486 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/08/02 22:12 upstream 755f1fed 6affd8e8 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/08/02 12:57 upstream 1e78030e 835dffe7 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/08/01 17:42 upstream 1e78030e 835dffe7 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/07/31 00:39 upstream 629f8205 7c7ded69 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce 2019/07/29 17:12 upstream 609488bc f67095ee .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/07/29 10:04 upstream 609488bc c85e1c5b .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk