tree 23276228ebc99aa9b1321194015b6a22a337c632
parent 014be2c8eac3381e202f684c1f35ae184a8b152b
author Eric Dumazet <edumazet@google.com> 1368766393 +0000
committer David S. Miller <davem@davemloft.net> 1368906945 -0700

ipv6: fix possible crashes in ip6_cork_release()

commit 0178b695fd6b4 ("ipv6: Copy cork options in ip6_append_data")
added some code duplication and bad error recovery, leading to potential
crash in ip6_cork_release() as kfree() could be called with garbage.

use kzalloc() to make sure this wont happen.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Neal Cardwell <ncardwell@google.com>