macsec: dynamically allocate space for sglist

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[ Upstream commit 5294b83086 ]

We call skb_cow_data, which is good anyway to ensure we can actually
modify the skb as such (another error from prior). Now that we have the
number of fragments required, we can safely allocate exactly that amount
of memory.

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jason A. Donenfeld 2017-04-25 19:08:18 +02:00 • committed by Greg Kroah-Hartman

parent 22d6b013ff

commit 3b0129d411

1 changed files with 22 additions and 7 deletions

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drivers/net/macsec.c

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