| From | Greg Kroah-Hartman <> | Subject | [ 30/34] net: sctp: sctp_auth_key_put: use kzfree instead of kfree | Date | Mon, 29 Apr 2013 12:02:37 -0700 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: Daniel Borkmann <dborkman@redhat.com>
[ Upstream commit 586c31f3bf04c290dc0a0de7fc91d20aa9a5ee53 ]
For sensitive data like keying material, it is common practice to zero out keys before returning the memory back to the allocator. Thus, use kzfree instead of kfree.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/sctp/auth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sctp/auth.c +++ b/net/sctp/auth.c @@ -71,7 +71,7 @@ void sctp_auth_key_put(struct sctp_auth_ return; if (atomic_dec_and_test(&key->refcnt)) { - kfree(key); + kzfree(key); SCTP_DBG_OBJCNT_DEC(keys); } }
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