shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 20:07:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

net: Only NET_ADMIN is allowed to fully control TUN interfaces.

Browse Source 
Signed-off-by: Chia-chi Yeh <chiachi@android.com>
This commit is contained in:
Chia-chi Yeh
2011-07-15 15:32:57 -07:00
committed by Colin Cross
parent 40ad8e5a3c
commit c001b9448b
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/tun.c
View File

@@ -1889,6 +1889,12 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
unsigned int ifindex;
int ret;
#ifdef CONFIG_ANDROID_PARANOID_NETWORK
if (cmd != TUNGETIFF && !capable(CAP_NET_ADMIN)) {
return -EPERM;
}
#endif
if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
if (copy_from_user(&ifr, argp, ifreq_len))
return -EFAULT;