lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[NET]: Ensure device name passed to SO_BINDTODEVICE is NULL terminated.

Browse Source 
Found by Solar Designer.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-03-23 22:47:40 -08:00
committed by David S. Miller
parent a1a8feed17
commit f67ed26f2b
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
net/core/sock.c
View File

@@ -404,8 +404,9 @@ set_rcvbuf:
if (!valbool) { if (!valbool) {
sk->sk_bound_dev_if = 0; sk->sk_bound_dev_if = 0;
} else { } else {
if (optlen > IFNAMSIZ) if (optlen > IFNAMSIZ - 1)
optlen = IFNAMSIZ; optlen = IFNAMSIZ - 1;
memset(devname, 0, sizeof(devname));
if (copy_from_user(devname, optval, optlen)) { if (copy_from_user(devname, optval, optlen)) {
ret = -EFAULT; ret = -EFAULT;
break; break;