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Mon, 17 Aug 2026 12:59:02 -0700 (PDT) Date: Mon, 17 Aug 2026 12:59:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a836806.f7a79266.2f965f.002a.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING in ep_write_iter From: syzbot To: akpm@linux-foundation.org, apopple@nvidia.com, byungchul@sk.com, david@kernel.org, gourry@gourry.net, gregkh@linuxfoundation.org, joshua.hahnjy@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, matthew.brost@intel.com, rakie.kim@sk.com, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com, ying.huang@linux.alibaba.com, ziy@nvidia.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 2FB28100004 X-Stat-Signature: 1n119bekuwf1p41ezbkai7dwf7peo3rn X-HE-Tag: 1786996743-913786 X-HE-Meta: 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 Nv6mZszo 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 u6v55K3y TBNdSR7++bfC7+xyJbApzy521QKLrt8WVGNumbLTgywULEOjFiCS5g== 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+805630f1453e490427fa@syzkaller.appspotmail.com Tested-by: syzbot+805630f1453e490427fa@syzkaller.appspotmail.com Tested on: commit: 8d3ae592 Linux 7.2 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17008679580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1d67342c314f228d dashboard link: https://syzkaller.appspot.com/bug?extid=805630f1453e490427fa compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=15a7d69e580000 Note: testing is done by a robot and is best-effort only.