linux-ext4 - [Bug 199347] buffer overflow in ext4_xattr_set_entry() when mounting and operating a crafted ext4 image

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Message-ID: <bug-199347-13602-0M2c3lMxzz@https.bugzilla.kernel.org/>
Date:   Wed, 23 May 2018 17:02:05 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...nel.org
Subject: [Bug 199347] buffer overflow in ext4_xattr_set_entry() when mounting
 and operating a crafted ext4 image

https://bugzilla.kernel.org/show_bug.cgi?id=199347

Theodore Tso (tytso@....edu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tytso@....edu

--- Comment #4 from Theodore Tso (tytso@....edu) ---
Created attachment 276147
  --> https://bugzilla.kernel.org/attachment.cgi?id=276147&action=edit
ext4: correctly handle a zero-length xattr with a  non-zero e_value_offs

This patch should address the problem.

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