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Diffstat (limited to 'net/ipv6/raw.c')
-rw-r--r--net/ipv6/raw.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 60f1e4f5be5a..c51d5ce3711c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1020,6 +1020,9 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
struct raw6_sock *rp = raw6_sk(sk);
int val;
+ if (optlen < sizeof(val))
+ return -EINVAL;
+
if (copy_from_sockptr(&val, optval, sizeof(val)))
return -EFAULT;