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Tue, 08 Jul 2025 18:54:03 -0700 (PDT) Date: Tue, 08 Jul 2025 18:54:03 -0700 In-Reply-To: <686d5adb.050a0220.1ffab7.0019.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <686dcbbb.050a0220.1ffab7.002a.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING: lock held when returning to user space in lock_next_vma From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, andrii@kernel.org, anna.luese@v-bien.de, 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 Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: rodwidbdn7ye5fsk43kbq6pcige4fwtp X-Rspamd-Queue-Id: E573D140006 X-HE-Tag: 1752026044-816799 X-HE-Meta: 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 oqS83mxb 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 OBB4sAhz BUIjWN2nkbeC5OoJZ8Z1hjkhwX+pWGw0gWDLrvoFEzBo1kstmLQMW2Tb0aPBtNt6qk0aWKC6EmQ= 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 6772c457a86536f3496bf5b3716f34a5ac125783 Author: Suren Baghdasaryan Date: Tue Jun 24 19:33:59 2025 +0000 fs/proc/task_mmu:: execute PROCMAP_QUERY ioctl under per-vma locks bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=158fca8c580000 start commit: 26ffb3d6f02c Add linux-next specific files for 20250704 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=178fca8c580000 console output: https://syzkaller.appspot.com/x/log.txt?x=138fca8c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1e4f88512ae53408 dashboard link: https://syzkaller.appspot.com/bug?extid=80011ad33eec39e6ce42 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1124abd4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1099df70580000 Reported-by: syzbot+80011ad33eec39e6ce42@syzkaller.appspotmail.com Fixes: 6772c457a865 ("fs/proc/task_mmu:: execute PROCMAP_QUERY ioctl under per-vma locks") For information about bisection process see: https://goo.gl/tpsmEJ#bisection