crypto: testmgr - fix sizeof() on COMP_BUF_SIZE

[ Upstream commit 22a8118d329334833cd30f2ceb36d28e8cae8a4f ]

After allocation, output and decomp_output both point to memory chunks of
size COMP_BUF_SIZE. Then, only the first bytes are zeroed out using
sizeof(COMP_BUF_SIZE) as parameter to memset(), because
sizeof(COMP_BUF_SIZE) provides the size of the constant and not the size of
allocated memory.

Instead, the whole allocated memory is meant to be zeroed out. Use
COMP_BUF_SIZE as parameter to memset() directly in order to accomplish
this.

Fixes: 336073840a872 ("crypto: testmgr - Allow different compression results")

Signed-off-by: Michael Schupikov <michael@schupikov.de>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 3664c26..13cb2ea 100644 (file)
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1400,8 +1400,8 @@ static int test_comp(struct crypto_comp *tfm,
                int ilen;
                unsigned int dlen = COMP_BUF_SIZE;
 
-               memset(output, 0, sizeof(COMP_BUF_SIZE));
-               memset(decomp_output, 0, sizeof(COMP_BUF_SIZE));
+               memset(output, 0, COMP_BUF_SIZE);
+               memset(decomp_output, 0, COMP_BUF_SIZE);
 
                ilen = ctemplate[i].inlen;
                ret = crypto_comp_compress(tfm, ctemplate[i].input,
@@ -1445,7 +1445,7 @@ static int test_comp(struct crypto_comp *tfm,
                int ilen;
                unsigned int dlen = COMP_BUF_SIZE;
 
-               memset(decomp_output, 0, sizeof(COMP_BUF_SIZE));
+               memset(decomp_output, 0, COMP_BUF_SIZE);
 
                ilen = dtemplate[i].inlen;
                ret = crypto_comp_decompress(tfm, dtemplate[i].input,