linux-kernel - Re: [syzbot] [erofs?] [mm?] BUG: unable to handle kernel NULL pointer dereference in filemap_read

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Message-ID: <66e9296c.050a0220.252d9a.0005.GAE@google.com>
Date: Tue, 17 Sep 2024 00:02:04 -0700
From: syzbot <syzbot+001306cd9c92ce0df23f@...kaller.appspotmail.com>
To: hsiangkao@...ux.alibaba.com, linux-erofs@...ts.ozlabs.org, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	syzkaller-bugs@...glegroups.com, xiang@...nel.org
Subject: Re: [syzbot] [erofs?] [mm?] BUG: unable to handle kernel NULL pointer
 dereference in filemap_read_folio (3)

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+001306cd9c92ce0df23f@...kaller.appspotmail.com
Tested-by: syzbot+001306cd9c92ce0df23f@...kaller.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.