This is a note to let you know that I've just added the patch titled
crypto: caam - fix unchecked return value error
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-caam-fix-unchecked-return-value-error.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d828b9f57c708b619d74801ba0c2c5fa5ea5c2d2
Author: Gaurav Jain <gaurav.jain@xxxxxxx>
Date: Tue Aug 8 12:55:25 2023 +0200
crypto: caam - fix unchecked return value error
[ 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@xxxxxxx>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@xxxxxxx>
Reviewed-by: Gaurav Jain <gaurav.jain@xxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 8867275767101..51b48b57266a6 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -223,7 +223,9 @@ 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;
