diff options
| -rw-r--r-- | net/socket.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c index e4c7f90..53882f7 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1683,6 +1683,8 @@ 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; @@ -1742,6 +1744,8 @@ 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; |