mcookie: correct wrong memset argument
Fixes #10216 Building mcookie generates a warning about possible wrong arguments to memset: mcookie.c:207:26: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */ ctx is a pointer to a structure, so the code should use the size of the structure and not the size of the pointer when it tries to clear the structure, similar to how it got fixed upstream back in 2009: https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/commit/lib/md5.c?id=6596057175c6ed342dc20e85eae8a42eb29b629f Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
parent
6f1c11f79a
commit
40f4191f2a
|
@ -204,7 +204,7 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
|
|||
MD5Transform(ctx->buf, (uint32 *) ctx->in);
|
||||
byteReverse((unsigned char *) ctx->buf, 4);
|
||||
memcpy(digest, ctx->buf, 16);
|
||||
memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
|
||||
memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
|
||||
}
|
||||
|
||||
/* The four core functions - F1 is optimized somewhat */
|
||||
|
|
Loading…
Reference in a new issue