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Mon, 24 Nov 2025 20:55:04 -0800 (PST) Date: Mon, 24 Nov 2025 20:55:04 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <692536a8.a70a0220.d98e3.009d.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING: refcount bug in __vma_enter_locked From: syzbot To: akpm@linux-foundation.org, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, shakeel.butt@linux.dev, surenb@google.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, willy@infradead.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: E91AF100002 X-Stat-Signature: hpxbsmos4xigzui198zkbcq978zpao9h X-Rspam-User: X-HE-Tag: 1764046504-753161 X-HE-Meta: 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 1oXqbNgE 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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: Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+5b19bad23ac7f44bf8b8@syzkaller.appspotmail.com Tested-by: syzbot+5b19bad23ac7f44bf8b8@syzkaller.appspotmail.com Tested on: commit: 422f3140 Add linux-next specific files for 20251124 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=167eae92580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d488adfa0c950abc dashboard link: https://syzkaller.appspot.com/bug?extid=5b19bad23ac7f44bf8b8 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=126d457c580000 Note: testing is done by a robot and is best-effort only.