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Tue, 17 Jun 2025 22:07:04 -0700 (PDT) Date: Tue, 17 Jun 2025 22:07:04 -0700 In-Reply-To: <68512333.a70a0220.395abc.0205.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68524978.050a0220.2608ac.002a.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING: bad unlock balance in move_pgt_entry From: syzbot To: Jason@zx2c4.com, Liam.Howlett@oracle.com, akpm@linux-foundation.org, david@redhat.com, harry.yoo@oracle.com, jannh@google.com, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, pfalcato@suse.de, riel@surriel.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam11 X-Rspam-User: X-Rspamd-Queue-Id: 6FB3040006 X-Stat-Signature: 5q1c5g5ygyre96gx8j9j651qat11ngme X-HE-Tag: 1750223225-899965 X-HE-Meta: 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 KpVZrfJn 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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: syzbot has bisected this issue to: commit aaf5c23bf6a474f11f48f03bd6a9b551f4e7d45a Author: Lorenzo Stoakes Date: Mon Jun 9 13:26:35 2025 +0000 mm/mremap: introduce more mergeable mremap via MREMAP_RELOCATE_ANON bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11f92370580000 start commit: 050f8ad7b58d Add linux-next specific files for 20250616 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=13f92370580000 console output: https://syzkaller.appspot.com/x/log.txt?x=15f92370580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2efc7740224b93a dashboard link: https://syzkaller.appspot.com/bug?extid=52343d77314d6c0447fe syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11389e82580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16824370580000 Reported-by: syzbot+52343d77314d6c0447fe@syzkaller.appspotmail.com Fixes: aaf5c23bf6a4 ("mm/mremap: introduce more mergeable mremap via MREMAP_RELOCATE_ANON") For information about bisection process see: https://goo.gl/tpsmEJ#bisection