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authorMark Brown <broonie@linaro.org>2013-09-15 13:43:21 +0100
committerMark Brown <broonie@linaro.org>2013-09-15 13:43:21 +0100
commit4ed4d44eb2192604716226a6f0edad02ab76101f (patch)
tree74c2a4041e46b906d89c5880b9cdeb5d768827c4 /drivers/net/tun.c
parentcb03293a043ab9bda850fe143062bd304a9e2376 (diff)
parent410dbb746130bc052bb3c7a337a86252874adbdf (diff)
downloadvexpress-lsk-lsk-13.09.tar.gz
Merge tag 'v3.10.12' into linux-linaro-lsklsk-13.09
This is the 3.10.12 stable release
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 2491eb28a8d..7b54f4f052d 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1076,8 +1076,9 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
u32 rxhash;
if (!(tun->flags & TUN_NO_PI)) {
- if ((len -= sizeof(pi)) > total_len)
+ if (len < sizeof(pi))
return -EINVAL;
+ len -= sizeof(pi);
if (memcpy_fromiovecend((void *)&pi, iv, 0, sizeof(pi)))
return -EFAULT;
@@ -1085,8 +1086,9 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
}
if (tun->flags & TUN_VNET_HDR) {
- if ((len -= tun->vnet_hdr_sz) > total_len)
+ if (len < tun->vnet_hdr_sz)
return -EINVAL;
+ len -= tun->vnet_hdr_sz;
if (memcpy_fromiovecend((void *)&gso, iv, offset, sizeof(gso)))
return -EFAULT;