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lib: update single-char callers of strtobool()

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Some callers of strtobool() were passing a pointer to unterminated
strings.  In preparation of adding multi-character processing to
kstrtobool(), update the callers to not pass single-character pointers,
and switch to using the new kstrtobool_from_user() helper where
possible.

Signed-off-by: Kees Cook <[email protected]>
Cc: Amitkumar Karwar <[email protected]>
Cc: Nishant Sarmukadam <[email protected]>
Cc: Kalle Valo <[email protected]>
Cc: Steve French <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Kees Cook 2016-03-17 14:22:54 -07:00 • committed by Linus Torvalds
commit 1404297ebf
5 changed files with 24 additions and 54 deletions
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10
drivers/net/wireless/marvell/mwifiex/debugfs.c
View file

@ -880,14 +880,12 @@ mwifiex_reset_write(struct file *file,
{
struct mwifiex_private *priv = file->private_data;
struct mwifiex_adapter *adapter = priv->adapter;
char cmd;
bool result;
int rc;
if (copy_from_user(&cmd, ubuf, sizeof(cmd)))
return -EFAULT;
if (strtobool(&cmd, &result))
return -EINVAL;
rc = kstrtobool_from_user(ubuf, count, &result);
if (rc)
return rc;
if (!result)
return -EINVAL;