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Wed, 7 Feb 2024 17:02:44 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id kr7FILS3w2XUWQAAD6G6ig (envelope-from ); Wed, 07 Feb 2024 17:02:44 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 1A843A0809; Wed, 7 Feb 2024 18:02:44 +0100 (CET) Date: Wed, 7 Feb 2024 18:02:44 +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?] KASAN: use-after-free Read in set_de_name_and_namelen Message-ID: <20240207170244.unipov7cbfbrupnb@quack3> References: <000000000000a5f23f05ee4865cf@google.com> <000000000000027e150610c8b964@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: <000000000000027e150610c8b964@google.com> Authentication-Results: smtp-out1.suse.de; none X-Spamd-Result: default: False [2.89 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-0.01)[45.88%]; 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=8d01b6e3197974dd]; TAGGED_RCPT(0.00)[3969ffae9388a369bab8]; 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.com:email,suse.cz: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-Score: 2.89 X-Spam-Flag: NO On Wed 07-02-24 03:09:03, 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=14fffd6c180000 > start commit: c3eb11fbb826 Merge tag 'pci-v6.1-fixes-3' of git://git.ker.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=8d01b6e3197974dd > dashboard link: https://syzkaller.appspot.com/bug?extid=3969ffae9388a369bab8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1615d7e5880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15f20981880000 > > 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