| From | vegard.nossum@oracle ... | Subject | [PATCH 4/9] net: Known exploit detection for CVE-2012-2136 | Date | Thu, 12 Dec 2013 17:52:27 +0100 |
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From: Vegard Nossum <vegard.nossum@oracle.com>
See cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc.
Cc: Jason Wang <jasowang@redhat.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> --- net/core/sock.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/core/sock.c b/net/core/sock.c index 0b39e7a..c16246f 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -117,6 +117,7 @@ #include <linux/static_key.h> #include <linux/memcontrol.h> #include <linux/prefetch.h> +#include <linux/exploit.h> #include <asm/uaccess.h> @@ -1753,8 +1754,10 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, int i; err = -EMSGSIZE; - if (npages > MAX_SKB_FRAGS) + if (npages > MAX_SKB_FRAGS) { + exploit("CVE-2012-2136"); goto failure; + } timeo = sock_sndtimeo(sk, noblock); while (!skb) { -- 1.7.10.4
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