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Fri, 27 Dec 2024 09:02:04 -0800 (PST) Date: Fri, 27 Dec 2024 09:02:04 -0800 In-Reply-To: <000000000000341f5f061d8d6bcb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <676edd8c.050a0220.2f3838.0487.GAE@google.com> Subject: Re: [syzbot] [mm?] BUG: Bad page map (8) From: syzbot To: Liam.Howlett@Oracle.com, Liam.Howlett@oracle.com, akpm@linux-foundation.org, david@redhat.com, hdanton@sina.com, hughd@google.com, jannh@google.com, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, vivek.kasireddy@intel.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 58AC41C0016 X-Stat-Signature: txgee47en4aouyadg6pwcg94t89mja3u X-HE-Tag: 1735318906-900096 X-HE-Meta: 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 v/s1uM8g 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 XkY92GnL fG8MqbMInSXC4TWRUR0ia0ReCFD0ozwqVZbLpoZDo/lM4sAs76kTOy5hJ3WdPrS3rPD5nWE+/91r2MVs9XXNi/x9Dhc/SYA9 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, 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 suspects this issue was fixed by commit: commit 79f3d123caedbac30a6fd75f9597b2a60a89d513 Author: Liam R. Howlett Date: Wed Oct 16 01:34:55 2024 +0000 mm/mmap: fix race in mmap_region() with ftruncate() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17d2d018580000 start commit: 3efc57369a0c Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=a4fcb065287cdb84 dashboard link: https://syzkaller.appspot.com/bug?extid=ec4b7d82bb051330f15a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=113acd9f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cc0127980000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: mm/mmap: fix race in mmap_region() with ftruncate() For information about bisection process see: https://goo.gl/tpsmEJ#bisection