From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 E74FA4C66 for ; Tue, 17 Sep 2024 07:02:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726556526; cv=none; b=ZfPagVEZWfe3N3JwGkloRhEuvXEJkgjMBiom+n7HwpBlTb9q1ZTJCX+Q4zqNrsujytsKPt1NURN/g4RbJ1ugFxRIpXxt9fHyARR+rhFhw4TYRiX1M/CoA+suP+Dp+gCnfTkW/YyMvrKcgS/MkXTLh5fxC/G9wgFWPRU8Cz9/NC4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726556526; c=relaxed/simple; bh=jiybRIMyi8xGvF1bSjHqzTbAmdYr5V3NPK3GciYGaXM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=uwLemTq1t+q28aKzRkqlJ24LnbxtrsTJG83yox9GMt1ARmXU7J0hNQ8+GfqbKRfdAaK9B4tNl4/rhy8XbIMLk4dxA1/DoVJyk9xJLjoWcpmusOhxa4yiLvlxAUa3Q9VgxYrl4uigQb+7vFcFtyyBGRYT3R9OUnqF4pSSO7aMvOI= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3a04c2472f6so78847445ab.0 for ; Tue, 17 Sep 2024 00:02:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726556524; x=1727161324; 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=0HSv32HeGpYbI3uL9CkUI9gRqEnD6C5ndl4yRdjzD7Q=; b=CrfBzvFK80CmJ1ozkHAt9+BlJ2pI/dLfPEpy0EWyFkcUSwafYZKkoHjNDqyDjSwFnS qTxoftyXK7yZFpY0dOa8R7JGiRqATvWIGcz1Xw7cJyPE0kZVuMomo9Z5nKBxUMm+CJlw iJ7OADV1e9zWoQkcwQDNqT3B9E50i4312uEGfS1zqzXjO5M6YLBu4c2+GmICgCKKVYta RdTLi27d8+7oMwE/BmAZh5ldup8Tlzf/Gm0CsTXpF4W7UlDuE1C1obvmX5u3nleHBMxK fAArx8U68gF3nIqaUcgPaERuwpVdmX0id9Saqfq2u/XlGmdM2uLUbe+rm/mAASSva8Ze kLLw== X-Forwarded-Encrypted: i=1; AJvYcCU5Xnupp8B/o7YOw2bu+h3swrInpoUW05SupjjD/G8T8w8GnE2g1dF9WMnzrSjum9ZFA9FUiBICgQvjVoA=@vger.kernel.org X-Gm-Message-State: AOJu0YxYz0GDaZHsV6VD9COFX6SL1Wok2d3g1ojU/3r3/JS/bmK0UXNu +DUOjaKZAHaeqy8qQJjE7aYrZSS27iW10DM7NbCAV6FAPX6UBNS1uGugxs+5ovBaZ2Tz3HW92ae AVbR58+aO4UVcnXaOdc0nE5s4nXPS7oKJ4xcJzhfPYcm517xklNjawEE= X-Google-Smtp-Source: AGHT+IGw8MIimOumCcBH/mbb+XShL8ROcJkfpG6tiQ4cOqJf4vE+Ssk3Q/tTlw6EZZn4NTFoq+T7ItW8chy/Sbh4o0NPuCpCuNcj 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:b4c:b0:3a0:4c4e:2e53 with SMTP id e9e14a558f8ab-3a08b6f86c2mr132203285ab.5.1726556524044; Tue, 17 Sep 2024 00:02:04 -0700 (PDT) Date: Tue, 17 Sep 2024 00:02:04 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66e9296c.050a0220.252d9a.0005.GAE@google.com> Subject: Re: [syzbot] [erofs?] [mm?] BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (3) From: syzbot To: hsiangkao@linux.alibaba.com, linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, xiang@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+001306cd9c92ce0df23f@syzkaller.appspotmail.com Tested-by: syzbot+001306cd9c92ce0df23f@syzkaller.appspotmail.com Tested on: commit: 2830df2e erofs: ensure regular inodes for file-backed .. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test console output: https://syzkaller.appspot.com/x/log.txt?x=11b168a9980000 kernel config: https://syzkaller.appspot.com/x/.config?x=a43f85ec3262ab75 dashboard link: https://syzkaller.appspot.com/bug?extid=001306cd9c92ce0df23f compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.