linux-ext4 - Re: [f2fs-dev] [PATCH v2 0/6] fs: Fix directory corruption when moving directories

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] [day] [month] [year] [list]

Date:   Thu, 06 Jul 2023 00:18:14 +0000
From:   patchwork-bot+f2fs@...nel.org
To:     Jan Kara <jack@...e.cz>
Cc:     viro@...IV.linux.org.uk, brauner@...nel.org, tytso@....edu,
        miklos@...redi.hu, djwong@...nel.org,
        linux-f2fs-devel@...ts.sourceforge.net, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, jaegeuk@...nel.org,
        linux-ext4@...r.kernel.org
Subject: Re: [f2fs-dev] [PATCH v2 0/6] fs: Fix directory corruption when moving
 directories

Hello:

This series was applied to jaegeuk/f2fs.git (dev)
by Christian Brauner <brauner@...nel.org>:

On Thu,  1 Jun 2023 12:58:20 +0200 you wrote:
> Hello,
> 
> this patch set fixes a problem with cross directory renames originally reported
> in [1]. To quickly sum it up some filesystems (so far we know at least about
> ext4, udf, f2fs, ocfs2, likely also reiserfs, gfs2 and others) need to lock the
> directory when it is being renamed into another directory. This is because we
> need to update the parent pointer in the directory in that case and if that
> races with other operation on the directory (in particular a conversion from
> one directory format into another), bad things can happen.
> 
> [...]

Here is the summary with links:
  - [f2fs-dev,v2,1/6] ext4: Remove ext4 locking of moved directory
    https://git.kernel.org/jaegeuk/f2fs/c/3658840cd363
  - [f2fs-dev,v2,2/6] Revert "udf: Protect rename against modification of moved directory"
    https://git.kernel.org/jaegeuk/f2fs/c/7517ce5dc4d6
  - [f2fs-dev,v2,3/6] Revert "f2fs: fix potential corruption when moving a directory"
    https://git.kernel.org/jaegeuk/f2fs/c/cde3c9d7e2a3
  - [f2fs-dev,v2,4/6] fs: Establish locking order for unrelated directories
    (no matching commit)
  - [f2fs-dev,v2,5/6] fs: Lock moved directories
    https://git.kernel.org/jaegeuk/f2fs/c/28eceeda130f
  - [f2fs-dev,v2,6/6] fs: Restrict lock_two_nondirectories() to non-directory inodes
    (no matching commit)

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html