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| author | Dan Carpenter <error27@gmail.com> | 2010-09-10 01:56:16 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-26 17:18:19 -0700 |
| commit | 5b11eef8e3d3e3b2ce9aae50f6ab4fd8451cfc5b (patch) | |
| tree | 985782c7a2052f4564249b79879c833f9eb31288 /net | |
| parent | 9db783be92c6c07d4ff6238d01022368a29e0d82 (diff) | |
| download | kernel-crypto-5b11eef8e3d3e3b2ce9aae50f6ab4fd8451cfc5b.tar.gz kernel-crypto-5b11eef8e3d3e3b2ce9aae50f6ab4fd8451cfc5b.tar.xz kernel-crypto-5b11eef8e3d3e3b2ce9aae50f6ab4fd8451cfc5b.zip | |
net/llc: make opt unsigned in llc_ui_setsockopt()
commit 339db11b219f36cf7da61b390992d95bb6b7ba2e upstream.
The members of struct llc_sock are unsigned so if we pass a negative
value for "opt" it can cause a sign bug. Also it can cause an integer
overflow when we multiply "opt * HZ".
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/llc/af_llc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 023ba820236..58261299821 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -1024,7 +1024,8 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; struct llc_sock *llc = llc_sk(sk); - int rc = -EINVAL, opt; + unsigned int opt; + int rc = -EINVAL; lock_sock(sk); if (unlikely(level != SOL_LLC || optlen != sizeof(int))) |