From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Subject: Re: [syzbot] [reiserfs?] KASAN: null-ptr-deref Read in fix_nodes Date: Sat, 23 Sep 2023 17:02:23 -0700 Message-ID: <00000000000061c35a06060f8eb3@google.com> References: <0000000000007fcc9c05f909f7f3@google.com> Mime-Version: 1.0 Return-path: In-Reply-To: <0000000000007fcc9c05f909f7f3@google.com> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org, rkovhaev@gmail.com, syzkaller-bugs@googlegroups.com syzbot has bisected this issue to: commit d24396c5290ba8ab04ba505176874c4e04a2d53c Author: Rustam Kovhaev Date: Sun Nov 1 14:09:58 2020 +0000 reiserfs: add check for an invalid ih_entry_count bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15244cfa680000 start commit: b6dad5178cea Merge tag 'nios2_fix_v6.4' of git://git.kerne.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=17244cfa680000 console output: https://syzkaller.appspot.com/x/log.txt?x=13244cfa680000 kernel config: https://syzkaller.appspot.com/x/.config?x=ac246111fb601aec dashboard link: https://syzkaller.appspot.com/bug?extid=5184326923f180b9d11a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10bbc887280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15c9558b280000 Reported-by: syzbot+5184326923f180b9d11a@syzkaller.appspotmail.com Fixes: d24396c5290b ("reiserfs: add check for an invalid ih_entry_count") For information about bisection process see: https://goo.gl/tpsmEJ#bisection