AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-03-01 19:43:58 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drivers/net/macvtap: fix error check

Browse Source 
'len' is unsigned of type size_t and can't be negative.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Kaiser 2011-03-04 13:49:41 +00:00 committed by David S. Miller
parent b3ca9b02b0
commit ce3c869283
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/macvtap.c
View File

@ -528,8 +528,9 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q,
vnet_hdr_len = q->vnet_hdr_sz; vnet_hdr_len = q->vnet_hdr_sz;
err = -EINVAL; err = -EINVAL;
if ((len -= vnet_hdr_len) < 0) if (len < vnet_hdr_len)
goto err; goto err;
len -= vnet_hdr_len;
err = memcpy_fromiovecend((void *)&vnet_hdr, iv, 0, err = memcpy_fromiovecend((void *)&vnet_hdr, iv, 0,
sizeof(vnet_hdr)); sizeof(vnet_hdr));