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af_unix: Only allow recv on connected seqpacket sockets.
[firefly-linux-kernel-4.4.55.git]
/
net
/
socket.c
diff --git
a/net/socket.c
b/net/socket.c
index 75655365b5fd2041d9bdf97d936275b1f74b217e..d449812d6208d337d0d927d47401ca62346632ea 100644
(file)
--- a/
net/socket.c
+++ b/
net/socket.c
@@
-1673,6
+1673,8
@@
SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
struct iovec iov;
int fput_needed;
struct iovec iov;
int fput_needed;
+ if (len > INT_MAX)
+ len = INT_MAX;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
@@
-1730,6
+1732,8
@@
SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
int err, err2;
int fput_needed;
int err, err2;
int fput_needed;
+ if (size > INT_MAX)
+ size = INT_MAX;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;