linux-kernel - Re: [PATCH] jfs: fix log->bdev_handle null ptr deref in lbmStartIO

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Message-Id: <20231009-vielsagend-halbmarathon-2c0c448544db@brauner>
Date:   Mon,  9 Oct 2023 15:54:36 +0200
From:   Christian Brauner <brauner@...nel.org>
To:     jack@...e.cz,
        syzbot+23bc20037854bb335d59@...kaller.appspotmail.com,
        Lizhi Xu <lizhi.xu@...driver.com>
Cc:     Christian Brauner <brauner@...nel.org>, axboe@...nel.dk,
        dave.kleikamp@...cle.com, hare@...e.de, hch@....de,
        jfs-discussion@...ts.sourceforge.net, johannes.thumshirn@....com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        shaggy@...nel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH] jfs: fix log->bdev_handle null ptr deref in lbmStartIO

On Mon, 09 Oct 2023 17:45:57 +0800, Lizhi Xu wrote:
> When sbi->flag is JFS_NOINTEGRITY in lmLogOpen(), log->bdev_handle can't
> be inited, so it value will be NULL.
> Therefore, add the "log ->no_integrity=1" judgment in lbmStartIO() to avoid such
> problems.
> 
> 

Applied to the vfs.super branch of the vfs/vfs.git tree.
Patches in the vfs.super branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs.super

[1/1] jfs: fix log->bdev_handle null ptr deref in lbmStartIO
      https://git.kernel.org/vfs/vfs/c/dc869ef84f26