Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

isdn: avoid copying too long drvid

Browse source 
"cfg->drvid" comes from the user so there is a possibility they
didn't NUL terminate it properly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2011-11-24 02:42:09 +00:00 committed by David S. Miller
parent 746ae30f82
commit 5dc5503f5a
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/isdn/i4l/isdn_net.c
View file

@ -2756,6 +2756,9 @@ isdn_net_setcfg(isdn_net_ioctl_cfg * cfg)
char *c,
*e;
if (strnlen(cfg->drvid, sizeof(cfg->drvid)) ==
sizeof(cfg->drvid))
return -EINVAL;
drvidx = -1;
chidx = -1;
strcpy(drvid, cfg->drvid);