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-rw-r--r--net/socket.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c
index bbedbfcb42c2..245330ca0015 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1702,6 +1702,8 @@ SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
if (len > INT_MAX)
len = INT_MAX;
+ if (unlikely(!access_ok(VERIFY_READ, buff, len)))
+ return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
@@ -1760,6 +1762,8 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
if (size > INT_MAX)
size = INT_MAX;
+ if (unlikely(!access_ok(VERIFY_WRITE, ubuf, size)))
+ return -EFAULT;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;

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