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Mon, 11 Mar 2024 09:25:11 +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 fGBgOffN7mW/AwAAD6G6ig (envelope-from ); Mon, 11 Mar 2024 09:25:11 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 7D95EA0807; Mon, 11 Mar 2024 10:25:07 +0100 (CET) Date: Mon, 11 Mar 2024 10:25:07 +0100 From: Jan Kara To: syzbot Cc: akpm@linux-foundation.org, axboe@kernel.dk, brauner@kernel.org, eadavis@qq.com, hch@lst.de, jack@suse.com, jack@suse.cz, linkinjeon@gmail.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Subject: Re: [syzbot] [udf?] KASAN: slab-use-after-free Read in udf_free_blocks Message-ID: <20240311092507.eyzqyrr6lkbqszvb@quack3> References: <000000000000d40c3c05fdc05cd1@google.com> <0000000000004ff6580612af035e@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000004ff6580612af035e@google.com> X-Stat-Signature: g79o6otz51hhaprq717141qgka5ih7cf X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: C8E0D80021 X-Rspam-User: X-HE-Tag: 1710149113-822237 X-HE-Meta: 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 fyMm4phl 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat 02-03-24 07:19:04, 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=11030516180000 > start commit: f8dba31b0a82 Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' .. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=3c980bfe8b399968 > dashboard link: https://syzkaller.appspot.com/bug?extid=0b7937459742a0a4cffd > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10bcb6b5280000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12fbcfd1280000 > > If the result looks correct, please mark the issue as fixed by replying with: Looks good. #syz fix: fs: Block writes to mounted block devices Honza -- Jan Kara SUSE Labs, CR