From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B78AC1F543E for ; Fri, 27 Dec 2024 17:02:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735318927; cv=none; b=obNrMKHEPFOQiQrZpzQ5OZLQOxPXIyT5CDcEZLEY0wh/o1CqzBrsNinlImnhu1x4d4VGY/Ka7QB/saDNqZsvPeePMrljHSBjr0xEthx1Z4wFSngZ7kWxhGz4xEZy/G/OgrIrJJ3BWnvqtYwt6mC8tV0HWqn8sb5+pIlJP7Rn35k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735318927; c=relaxed/simple; bh=jGckJfkiuHaeGuEYGndP/2EPe6+jDjmMgMeI7q6ftTw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=kzc0EWJWTsdUG0RjlBURoWCbaGkd8dTTOc6lxhUSEulm/+2DBiccqANOQ6Wid9wttyQe4uvb6TLjsK5bqR29FHNH8GH5RpG4uChjHORCcTjSwe4plqK3jHgj4upaGLCC8/aFhG5mQL38fvZImIwKUOwpeyE5cusGsUhPwl/KL4E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-8498a21afc2so558257139f.1 for ; Fri, 27 Dec 2024 09:02:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735318925; x=1735923725; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=RHBcMLL6VrlI/45xgNU4L+J2cpZToWY7MVt3mLhgzKA=; b=L9Z1g8/G+iBQ2FP70qw8DqVYxJ/q3IW6rUcxfwbrFVFdzatNh491ZjEWZzUQnKgtpE QaeswEblWWwvoinTVPFA3zhS6RioTMZeKWijdefXR5EJAQ2SyTQLuzXO7cCNUE2IHFqc sFYD6PKSxmkU487elPKNmXXLVEvfQDC1DO7YCEce850hJFT/wFs+SQxksSffjeNPxpSI hv0wFF/L9RvntSFJPsWOIDAOQ0eI4fMYlJbEWlNsw3iIaQAdcGTX9cG13sByn7VLzZEC 0jJ4txIrt2PX4JCTTE0sYtPhGTKkAoOWP5/whOKbtPUObLpEuv2uL8eqBCi2HC8wxqfB sgkQ== X-Forwarded-Encrypted: i=1; AJvYcCVaaurmqJMucj2L4zTlaF2PfnpwfjA0tQJC9K1xKHiPMdoZ/DKEQu96jMGaIUoN3imuO20XJyNJnt02cvQ=@vger.kernel.org X-Gm-Message-State: AOJu0YxnvoJ4HsjT90EZybuMy6g8KCkRQ64Jqqx/nAURHXPV4Nkffh56 M3gOSmSqQ8MFcWQyhO4n4o1rqLHiXII5s7Q6mghlzxr5LppEvOW6dGTWob0YmzURR2tH7GDU1oI eNZOSTgJMX+jRdi29eL3f1PKxbzo6/hz+a0jQ5Ut6AudtBuGK854eh94= X-Google-Smtp-Source: AGHT+IEf1y3XO/FhkpPBruCUjkO7UArr/pt0NtpHzHxYxgsJuMjHqH2ygpy+AomFqjm30/ZYVNa3qmWSCfSruGREoIQlGZCdr8q4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:310c:b0:3a7:8cdd:c0d2 with SMTP id e9e14a558f8ab-3c2cc083da3mr216163125ab.0.1735318924918; 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" 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