i2o: fix overflow of copy_to_user()
If (len > reslen) we must not call copy_to_user() since kernel buffer is smaller than we want to copy. Similar code in this file is correct, so this bug was a typo. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Родитель
32fa45498f
Коммит
d929dc2bfd
|
@ -115,7 +115,7 @@ static int i2o_cfg_gethrt(unsigned long arg)
|
|||
put_user(len, kcmd.reslen);
|
||||
if (len > reslen)
|
||||
ret = -ENOBUFS;
|
||||
if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
|
||||
else if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
|
||||
ret = -EFAULT;
|
||||
|
||||
return ret;
|
||||
|
|
Загрузка…
Ссылка в новой задаче