Staging: batman-adv: ensure that eth_type_trans gets linear memory

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eth_type_trans tries to pull data with the length of the ethernet header
from the skb. We only ensured that enough data for the first ethernet
header and the batman header is available in non-paged memory of the skb
and not for the ethernet after the batman header.

eth_type_trans would fail sometimes with drivers which don't ensure that
all there data is perfectly linearised.

Reported-by: Rafal Lesniak <lesniak@eresi-project.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Marek Lindner 2010-11-22 00:55:40 +01:00 • committed by Greg Kroah-Hartman

parent 4f26559156

commit 2f1646788f

1 changed files with 10 additions and 4 deletions

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drivers/staging/batman-adv/soft-interface.c

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