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author | David S. Miller <davem@davemloft.net> | 2009-09-30 23:12:20 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2009-09-30 23:12:20 (GMT) |
commit | b7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch) | |
tree | 5fe78d599fc345ca0bcd4b083b79095a54b2921b /net/packet/af_packet.c | |
parent | eb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff) | |
download | linux-fsl-qoriq-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.xz |
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/packet/af_packet.c')
-rw-r--r-- | net/packet/af_packet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index d3d52c6..1238949 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1701,7 +1701,7 @@ static void packet_flush_mclist(struct sock *sk) } static int -packet_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen) +packet_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); |