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[XFRM]: Prevent off-by-one access to xfrm_dispatch

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Makes the type > XFRM_MSG_MAX check behave correctly to
protect access to xfrm_dispatch.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2005-05-03 14:26:01 -07:00 • committed by David S. Miller
parent e4553eddae
commit 526bdb80a2
1 changed files with 2 additions and 1 deletions
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3
include/linux/xfrm.h
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@ -140,8 +140,9 @@ enum {
XFRM_MSG_FLUSHPOLICY, XFRM_MSG_FLUSHPOLICY,
#define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY #define XFRM_MSG_FLUSHPOLICY XFRM_MSG_FLUSHPOLICY
XFRM_MSG_MAX __XFRM_MSG_MAX
}; };
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
struct xfrm_user_tmpl { struct xfrm_user_tmpl {
struct xfrm_id id; struct xfrm_id id;