Move 0 length buffer to end of structure to stop overwriting
fallback request data. This doesn't cause a bug itself as the
buffer is never used alongside the fallback but should be
changed.
Signed-off-by: Will Thomas <will.thomas@xxxxxxxxxx>
Reviewed-by: James Hartley <james.hartley@xxxxxxxxxx>
---
drivers/crypto/img-hash.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index a5f270b..7fa6aa4 100644
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -102,8 +102,10 @@ struct img_hash_request_ctx {
unsigned long op;
size_t bufcnt;
- u8 buffer[0] __aligned(sizeof(u32));
struct ahash_request fallback_req;
+
+ /* Zero length buffer must remain last member of struct */
+ u8 buffer[0] __aligned(sizeof(u32));
};
struct img_hash_ctx {
--
2.1.4
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