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Wed, 31 Jan 2024 17:18:45 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id pDt2F/WAumXQFwAAn2gu4w (envelope-from ); Wed, 31 Jan 2024 17:18:45 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 0ED1DA0809; Wed, 31 Jan 2024 18:18:45 +0100 (CET) Date: Wed, 31 Jan 2024 18:18:45 +0100 From: Jan Kara To: syzbot Cc: axboe@kernel.dk, brauner@kernel.org, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [reiserfs?] BUG: unable to handle kernel NULL pointer dereference in reiserfs_find_entry Message-ID: <20240131171845.okzidcm6gylcy4gw@quack3> References: <00000000000073b6d905eb48de3f@google.com> <000000000000e3d3f9061040b2ff@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000e3d3f9061040b2ff@google.com> Authentication-Results: smtp-out1.suse.de; none X-Spamd-Result: default: False [-0.10 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-3.00)[100.00%]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; URI_HIDDEN_PATH(1.00)[https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453]; TAGGED_RCPT(0.00)[4654552e088ed458b10d]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; RCPT_COUNT_SEVEN(0.00)[8]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.cz:email,syzkaller.appspot.com:url,suse.com:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[]; SUBJECT_HAS_QUESTION(0.00)[] X-Spam-Level: X-Spam-Flag: NO X-Spam-Score: -0.10 On Wed 31-01-24 08:52:05, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit 6f861765464f43a71462d52026fbddfc858239a5 > Author: Jan Kara > Date: Wed Nov 1 17:43:10 2023 +0000 > > fs: Block writes to mounted block devices > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e6fb5be80000 > start commit: 51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453 > dashboard link: https://syzkaller.appspot.com/bug?extid=4654552e088ed458b10d > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1177c895280000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f4b2a5280000 > > If the result looks correct, please mark the issue as fixed by replying with: Makes sense: #syz fix: fs: Block writes to mounted block devices Honza -- Jan Kara SUSE Labs, CR