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[82.31.203.200]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4562e819c01sm24635795e9.19.2025.07.16.08.42.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Jul 2025 08:42:24 -0700 (PDT) Message-ID: <0591ddb7-d279-4b13-bf2f-ffb913e82720@redhat.com> Date: Wed, 16 Jul 2025 16:42:23 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [gfs2?] UBSAN: shift-out-of-bounds in gfs2_dir_read (2) Content-Language: en-US To: syzbot References: <68754d09.a70a0220.5f69f.0001.GAE@google.com> Cc: agruenba@redhat.com, gfs2@lists.linux.dev, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com From: Andrew Price In-Reply-To: <68754d09.a70a0220.5f69f.0001.GAE@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 14/07/2025 19:31, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: 347e9f5043c8 Linux 6.16-rc6 > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=11afb18c580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f62a2ef17395702a > dashboard link: https://syzkaller.appspot.com/bug?extid=4708579bb230a0582a57 > compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172470f0580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d0fd82580000 #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git for-next