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Wed, 29 May 2024 08:43:03 -0700 (PDT) Date: Wed, 29 May 2024 08:43:03 -0700 In-Reply-To: <2afuizvfwythsdbwfiz7hdcpi73znr354bcuoy2hjux6et4u5p@mustf2czcn2x> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001e3fec0619999bbd@google.com> Subject: Re: [syzbot] [mm?] UBSAN: shift-out-of-bounds in try_to_shrink_lruvec From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, shakeel.butt@linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5569A80012 X-Stat-Signature: ofuznxz1u9t6r6qf4pssbwhtx75rii3y X-HE-Tag: 1716997384-673031 X-HE-Meta: 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 l+OplyHV 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 Cdqd8H0u X-Bogosity: Ham, tests=bogofilter, spamicity=0.004113, 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-and-tested-by: syzbot+17416257cb95200cba44@syzkaller.appspotmail.com Tested on: commit: 9d99040b Add linux-next specific files for 20240529 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1530a9d2980000 kernel config: https://syzkaller.appspot.com/x/.config?x=735e953fee00ec19 dashboard link: https://syzkaller.appspot.com/bug?extid=17416257cb95200cba44 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=14a1650c980000 Note: testing is done by a robot and is best-effort only.