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x86/mce/dev-mcelog: use strscpy() to instead of strncpy()

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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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/202212031419324523731@zte.com.cn
This commit is contained in:
Xu Panda
2022-12-03 14:19:32 +08:00
committed by Ingo Molnar
parent bd4edba265
commit 7ddf0050a2
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/cpu/mce/dev-mcelog.c
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@@ -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)