From: Michael Schupikov michael@schupikov.de
[ 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 --- crypto/testmgr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 3664c26f4838e..13cb2ea99d6a5 100644 --- 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,