Re: [PATCH] sh: Replace all non-returning strlcpy with strscpy
Kees Cook <[email protected]>
| Newsgroups | gmane.linux.ports.sh.devel,gmane.linux.kernel |
|---|---|
| Message-ID | <202305301621.BD4A8EA78F@keescook> |
On Tue, May 30, 2023 at 04:30:41PM +0000, Azeem Shaikh wrote: > strlcpy() reads the entire source buffer first. > This read may exceed the destination size limit. > This is both inefficient and can lead to linear read > overflows if a source string is not NUL-terminated [1]. > In an effort to remove strlcpy() completely [2], replace > strlcpy() here with strscpy(). > No return values were used, so direct replacement is safe. > > [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy > [2] https://github.com/KSPP/linux/issues/89 > > Signed-off-by: Azeem Shaikh <[email protected]> Reviewed-by: Kees Cook <[email protected]> -- Kees Cook