Messages in this thread Patch in this message |  | | Date | Sat, 3 Dec 2022 14:19:32 +0800 (CST) | From | <> | Subject | [PATCH linux-next] x86/mce/dev-mcelog: use strscpy() to instead of strncpy() |
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From: Xu Panda <xu.panda@zte.com.cn>
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn> Signed-off-by: Yang Yang <yang.yang29@zte.com> --- arch/x86/kernel/cpu/mce/dev-mcelog.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c index 100fbeebdc72..a05ac0716ecf 100644 --- a/arch/x86/kernel/cpu/mce/dev-mcelog.c +++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c @@ -105,8 +105,7 @@ static ssize_t set_trigger(struct device *s, struct device_attribute *attr, { char *p;
- strncpy(mce_helper, buf, sizeof(mce_helper)); - mce_helper[sizeof(mce_helper)-1] = 0; + strscpy(mce_helper, buf, sizeof(mce_helper)); p = strchr(mce_helper, '\n');
if (p) -- 2.15.2
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