crypto_kpp_maxsize() returns minimum length for output buffer
or error code if key hasn't been set. Check for error before
allocating memory.
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
crypto/testmgr.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 6f5f3ed..4f8029c 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2013,6 +2013,11 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
goto free_req;
out_len_max = crypto_kpp_maxsize(tfm);
+ if (out_len_max < 0) {
+ err = out_len_max;
+ goto free_req;
+ }
+
output_buf = kzalloc(out_len_max, GFP_KERNEL);
if (!output_buf) {
err = -ENOMEM;
--
2.7.4
