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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/ipv6/udp.c | |
| parent | eb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff) | |
| download | kernel-common-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.gz kernel-common-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.bz2 kernel-common-b7058842c940ad2c08dd829b21e5c92ebe3b8758.zip | |
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/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index b265b7047d3e..3a60f12b34ed 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1044,7 +1044,7 @@ void udpv6_destroy_sock(struct sock *sk) * Socket option code for UDP */ int udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen) + char __user *optval, unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, optval, optlen, @@ -1054,7 +1054,7 @@ int udpv6_setsockopt(struct sock *sk, int level, int optname, #ifdef CONFIG_COMPAT int compat_udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen) + char __user *optval, unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, optval, optlen, |