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Mon, 18 Nov 2024 09:41:04 -0800 (PST) Date: Mon, 18 Nov 2024 09:41:03 -0800 In-Reply-To: <949458.1731950611@warthog.procyon.org.uk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <673b7c2f.050a0220.87769.0053.GAE@google.com> Subject: Re: [syzbot] [mm?] [v9fs?] BUG: stack guard page was hit in sys_open From: syzbot To: akpm@linux-foundation.org, asmadeus@codewreck.org, dhowells@redhat.com, ericvh@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux_oss@crudebyte.com, lucho@ionkov.net, syzkaller-bugs@googlegroups.com, v9fs@lists.linux.dev Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam10 X-Stat-Signature: 8zgyi5kijts4ns96kpohxqydokcng8zw X-Rspamd-Queue-Id: BF407180002 X-Rspam-User: X-HE-Tag: 1731951658-944417 X-HE-Meta: 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 9VnOSs/0 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 TtZ7Wrzp 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: Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+885c03ad650731743489@syzkaller.appspotmail.com Tested-by: syzbot+885c03ad650731743489@syzkaller.appspotmail.com Tested on: commit: 2aece382 netfs: Report on NULL folioq in netfs_writeba.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git console output: https://syzkaller.appspot.com/x/log.txt?x=12714930580000 kernel config: https://syzkaller.appspot.com/x/.config?x=55f8591b98dd132 dashboard link: https://syzkaller.appspot.com/bug?extid=885c03ad650731743489 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.