linux-kernel - Re: [PATCH 0/5] Backport to 4.9- ext4: protect journal inode's blocks using block

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Message-ID: <A37B50A5-C978-47A6-9861-048AEA9788EE@vmware.com>
Date:   Wed, 29 Apr 2020 20:39:45 +0000
From:   Ashwin H <ashwinh@...are.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "tytso@....edu" <tytso@....edu>,
        "adilger.kernel@...ger.ca" <adilger.kernel@...ger.ca>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...nel.org" <stable@...nel.org>,
        Srivatsa Bhat <srivatsab@...are.com>,
        "srivatsa@...il.mit.edu" <srivatsa@...il.mit.edu>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        Steven Rostedt <srostedt@...are.com>,
        "ashwin.hiranniah@...il.com" <ashwin.hiranniah@...il.com>
Subject: Re: [PATCH 0/5] Backport to 4.9- ext4: protect journal inode's blocks
 using block_validity

I have sent patches for 4.14 tree

Thanks,
Ashwin

On 29/04/20, 6:29 PM, "Greg KH" <gregkh@...uxfoundation.org> wrote:

    On Thu, Apr 30, 2020 at 12:51:34AM +0530, ashwin-h wrote:
    > [PATCH 1/5] ext4: avoid declaring fs inconsistent due to invalid file
    > handles
    > This patch is backported as functionality in this commit is used by
    > Patch 2 in this patchset.
    > 
    > [PATCH 2/5] ext4: protect journal inode's blocks using block_validity
    > Backport to 4.9
    > 
    > [PATCH 3/5] ext4: don't perform block validity checks on the journal
    > [PATCH 4/5] ext4: fix block validity checks for journal inodes using
    > [PATCH 5/5] ext4: unsigned int compared against zero
    > Fixes issues found in Patch 2 in this patchset.
    > 
    > These patches addresses CVE-2019-19319
    
    I can't take patches for 4.9 that are not also in 4.14, for the obvious
    reason that you never want to upgrade to a newer kernel and get
    regressions.
    
    So can you provide a backported series for the 4.14 tree too?  Then I
    can take these.
    
    thanks,
    
    greg k-h