From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 67B8F20E702 for ; Sun, 2 Nov 2025 05:39:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762061944; cv=none; b=K0AZa+Vftb7y1rJVW52p+SYmj4dyQkv2Aw8+Nt6L6/Xd4HQqW5WxR2XzOmygDfUEUvu9d+xFKquV7dJ01lsfjwOckEUJ5rPKwllaG4p4QxujaSJy8uizj38+b78xC2MZZEH9Gtdt9fZU0GHHcRqHYzfWmGfSdPkOhVr1D3E7+Hs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762061944; c=relaxed/simple; bh=WImCX7SvTyP9WE4YKYQAr5TtP5ayByld5OhLfhadDPQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=DyMVfhPu8ZWqUxhvXZR3dauiCytZYobNdzQFe1JSGsGr/q6oCkJptQw/PI2bWbfPt9sqCUAqfKlAv58ul0AyspRPDeziajhgisrg9ILfGHaHhbSFeeqoXJDRLDUutcDErNgiX0w8QLThY+Xo6eZcGaFDs/tsaoZbFzMNdgEaEy4= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-433218d02e4so39580025ab.2 for ; Sat, 01 Nov 2025 22:39:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762061942; x=1762666742; 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=I5gofQLv9ATheBLZFs5eVxjk1NYdTx1xDPMzfJ3PQe4=; b=a9D+5OKbO4a26qgNxtqjJ0glJR8U3jacJd83yEzSuzHd88pLvyUy0uIgOT73fcCj3x XM6B0soY+0aClDzQt+HBPBX+SAc2i2VveTZtr2JPbbdpwg1t3h2heZ1Tie4JReC9BUVG bZKlvYzXuNzK4M6wTbym8WdJkJQOv8MFI7Fih7R+iv8khotknX0wklAweomScBYXQ94y gWFsYfW10B7QiMhPiDNOa+hvrgjPlymJa6o3mOHofZXbFZN36g05Ei7/9W0c5td9NcDc CCi5rgCgmOCqe1qxOT+1lqmI6cg3gpVZ/kv/hnzclkb3AhkGTodWlnmB4EOUfGRuNuCX 86+A== X-Forwarded-Encrypted: i=1; AJvYcCW+57yHV+KLETyiCYLcM87sGHLC1Vzpiw0ymnMLPm+/L2A/aBnsuoWJT4MbKMbUgxoJ2uDGQLlUWNsN2k4=@vger.kernel.org X-Gm-Message-State: AOJu0YzSCFkwKHLlI28Uym/SQEI6gxANFuVniUDPNQPBr/Be77WEvXGC /ikWVAtCMY0JnTl/VzSEaNf7eka/FVP5/4ifvzuNMvtdLyn9T4MUVMQSnxJ5QGfAXEIyrKvof7v qJv0Omdi1Ac6Xhs6jO/B94sJ1YQcSjXs7HJN5JAkJnjBmIb6WQpJJch97RaE= X-Google-Smtp-Source: AGHT+IHCp5x9Csze7ts1+FeJTWPJ23oGo3DuAx7NFNbgLSzgUoEWPJQbXpSqgSY8kC3XvptviGA3Mx7pJPxr111i/n4AQSQen7Gh Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:4c18:b0:433:2389:e0ad with SMTP id e9e14a558f8ab-4332389e21fmr37683605ab.8.1762061942596; Sat, 01 Nov 2025 22:39:02 -0700 (PDT) Date: Sat, 01 Nov 2025 22:39:02 -0700 In-Reply-To: <68cc0578.050a0220.28a605.0006.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6906ee76.050a0220.29fc44.0016.GAE@google.com> Subject: Re: [syzbot] [iomap?] kernel BUG in folio_end_read (2) From: syzbot To: brauner@kernel.org, chao@kernel.org, djwong@kernel.org, jaegeuk@kernel.org, joannelkoong@gmail.com, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 51311f045375984dabdf8cc523e80d39a4c3dd5a Author: Joanne Koong Date: Fri Sep 26 00:26:02 2025 +0000 iomap: track pending read bytes more optimally bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=103a0012580000 start commit: 98bd8b16ae57 Add linux-next specific files for 20251031 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=123a0012580000 console output: https://syzkaller.appspot.com/x/log.txt?x=143a0012580000 kernel config: https://syzkaller.appspot.com/x/.config?x=63d09725c93bcc1c dashboard link: https://syzkaller.appspot.com/bug?extid=3686758660f980b402dc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=176fc342580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10403f34580000 Reported-by: syzbot+3686758660f980b402dc@syzkaller.appspotmail.com Fixes: 51311f045375 ("iomap: track pending read bytes more optimally") For information about bisection process see: https://goo.gl/tpsmEJ#bisection