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xfrm: make aead_len() return unsigned int 

Key lengths can't be negative.

Comparison with nla_len() is left signed just in case negative value
can sneak in there.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Alexey Dobriyan 2017-09-21 23:45:43 +03:00 committed by Steffen Klassert
parent 39e50d9637
commit 373b8eeb0c
2 changed files with 2 additions and 2 deletions
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2
include/net/xfrm.h
View File

@ -1764,7 +1764,7 @@ static inline int xfrm_acquire_is_on(struct net *net)
}
#endif
static inline int aead_len(struct xfrm_algo_aead *alg)
static inline unsigned int aead_len(struct xfrm_algo_aead *alg)
{
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}

2
net/xfrm/xfrm_user.c
View File

@ -84,7 +84,7 @@ static int verify_aead(struct nlattr **attrs)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < aead_len(algp))
if (nla_len(rt) < (int)aead_len(algp))
return -EINVAL;
algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';