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

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

Theodore Tso (tytso@xxxxxxx) changed:

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--- Comment #4 from Theodore Tso (tytso@xxxxxxx) ---
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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