openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

wil6210: increase cmd buffer size to avoid sscanf buffer overflow 

cppcheck detected a buffer overflow:

[drivers/net/wireless/ath/wil6210/debugfs.c:634]: (error) Width 8
  given in format string (no. 1) is larger than destination buffer
  'cmd[8]', use %7s to prevent overflowing it.

For the current %8s sscanf we require cmd to be 9 chars long
so increase it by 1 byte to prevent the sscan overflow (rather
than reduce the %8s specifier to %7s as cppcheck recommends).

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Colin Ian King 2015-03-01 17:48:33 +00:00 committed by Kalle Valo
parent 6e6dd08dd3
commit 2a19f7765b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/wil6210/debugfs.c
View File

@ -626,7 +626,7 @@ static ssize_t wil_write_back(struct file *file, const char __user *buf,
struct wil6210_priv *wil = file->private_data;
int rc;
char *kbuf = kmalloc(len + 1, GFP_KERNEL);
char cmd[8];
char cmd[9];
int p1, p2, p3;
if (!kbuf)