diff options
| author | Dan Carpenter <error27@gmail.com> | 2010-09-10 01:56:16 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-13 12:44:10 -0700 |
| commit | 339db11b219f36cf7da61b390992d95bb6b7ba2e (patch) | |
| tree | 38faf26336bb97d53dddf918d360914f709e2254 /net/llc | |
| parent | a505b3b30fc69904f858822a2aa95990a4bf7958 (diff) | |
| download | linux-339db11b219f36cf7da61b390992d95bb6b7ba2e.tar.gz linux-339db11b219f36cf7da61b390992d95bb6b7ba2e.tar.bz2 linux-339db11b219f36cf7da61b390992d95bb6b7ba2e.zip | |
net/llc: make opt unsigned in llc_ui_setsockopt()
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".
CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/llc')
| -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 023ba820236f..582612998211 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))) |