[CVE-2011-1576] core: Fix memory leak/corruption on VLAN GRO_DROP

Stefan Bader stefan.bader at canonical.com
Mon Sep 19 14:00:05 UTC 2011

introduced by (2.6.30):
	gro: Move common completion code into helpers

fixed upstream by (2.6.37):
	vlan: Centralize handling of hardware acceleration.

The upstream fix avoids the problem by re-arranging some helper functions.
This minimal fix was picked from the RedHat source package. It matches the
way that the vlan code handled the cases before the merge.

Natty and Oneiric have the upstream fix. Hardy does not even handle GRO.
So only fixes for Lucid and Maverick are required. The two versions for
lucid/fsl-imx51 and the rest only differ by a bit of sourrounding code.

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