linux-kernel - Re: [PATCH] ocfs2: remove unreasonable unlock

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240820134430.278418-1-lizhi.xu@windriver.com>
Date: Tue, 20 Aug 2024 21:44:30 +0800
From: Lizhi Xu <lizhi.xu@...driver.com>
To: <heming.zhao@...e.com>
CC: <jlbec@...lplan.org>, <joseph.qi@...ux.alibaba.com>,
        <linux-kernel@...r.kernel.org>, <lizhi.xu@...driver.com>,
        <mark@...heh.com>, <ocfs2-devel@...ts.linux.dev>,
        <syzbot+ab134185af9ef88dfed5@...kaller.appspotmail.com>,
        <syzkaller-bugs@...glegroups.com>
Subject: Re: [PATCH] ocfs2: remove unreasonable unlock

On Tue, 20 Aug 2024 19:32:03 +0800, Heming wrote:
> > In the for-loop after the 'read_failure' label, the condition
> > '(bh == NULL) && flags includes OCFS2_BH_READAHEAD' is missing.
> > When this contidion is true, this for-loop will call ocfs2_set_buffer
> > _uptodate(ci, bh), which then triggers a NULL pointer access error.
> >
> > Changes from V2:
> > * Make the code more concise
> >
> > Reported-and-suggested-by: Heming Zhao <heming.zhao@...e.com>
> > Signed-off-by: Lizhi Xu <lizhi.xu@...driver.com>
> > Reviewed-by: Heming Zhao <heming.zhao@...e.com>
> 
> I didn't give you my "Reviewed-by" tag for this patch, and you
> can add my tag only after I send it to you.
> (take easy, you can get my "Reviewed-by" tag now.)
> Please remember this rule for next time.
Got it.
> 
> Another issue with this mail is that the change log should be
> placed before the file list, not in the commit message section.
Thanks. Its like following:
Signed-off-by: Lizhi Xu <lizhi.xu@...driver.com>
---
V2 -> V3: Make the code more concise

 fs/ocfs2/buffer_head_io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

BR,
Lizhi