4.14-stable review patch. If anyone has any objections, please let me know.
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From: Gaurav Jain gaurav.jain@nxp.com
[ Upstream commit e30685204711a6be40dec2622606950ccd37dafe ]
error: Unchecked return value (CHECKED_RETURN) check_return: Calling sg_miter_next without checking return value
fix: added check if(!sg_miter_next)
Fixes: 8a2a0dd35f2e ("crypto: caam - strip input zeros from RSA input buffer") Signed-off-by: Gaurav Jain gaurav.jain@nxp.com Signed-off-by: Meenakshi Aggarwal meenakshi.aggarwal@nxp.com Reviewed-by: Gaurav Jain gaurav.jain@nxp.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/caam/caampkc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c index 6f3f81bb880b5..01f9053db287b 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -194,7 +194,9 @@ static int caam_rsa_count_leading_zeros(struct scatterlist *sgl, if (len && *buff) break;
- sg_miter_next(&miter); + if (!sg_miter_next(&miter)) + break; + buff = miter.addr; len = miter.length;