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-rw-r--r--net/can/raw.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/can/raw.c b/net/can/raw.c
index ead50c7c0d4..201cbfc6b9e 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -573,7 +573,8 @@ static int raw_getsockopt(struct socket *sock, int level, int optname,
int fsize = ro->count * sizeof(struct can_filter);
if (len > fsize)
len = fsize;
- err = copy_to_user(optval, ro->filter, len);
+ if (copy_to_user(optval, ro->filter, len))
+ err = -EFAULT;
} else
len = 0;
release_sock(sk);