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| author | David S. Miller <davem@davemloft.net> | 2009-09-30 16:12:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-30 16:12:20 -0700 |
| commit | b7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch) | |
| tree | 5fe78d599fc345ca0bcd4b083b79095a54b2921b /net/netfilter | |
| parent | eb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff) | |
| download | linux-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.bz2 | |
net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.
Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_sockopt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c index 8ab829f86574..f042ae521557 100644 --- a/net/netfilter/nf_sockopt.c +++ b/net/netfilter/nf_sockopt.c @@ -113,7 +113,7 @@ static int nf_sockopt(struct sock *sk, u_int8_t pf, int val, } int nf_setsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt, - int len) + unsigned int len) { return nf_sockopt(sk, pf, val, opt, &len, 0); } @@ -154,7 +154,7 @@ static int compat_nf_sockopt(struct sock *sk, u_int8_t pf, int val, } int compat_nf_setsockopt(struct sock *sk, u_int8_t pf, - int val, char __user *opt, int len) + int val, char __user *opt, unsigned int len) { return compat_nf_sockopt(sk, pf, val, opt, &len, 0); } |