drbg_prepare_hrng
drbg->jent = crypto_alloc_rng
err = add_random_ready_callback
default:
drbg->random_ready.func = NULL -->set NULL, if fail
drbg_uninstantiate
if (drbg->random_ready.func) -->If NULL, will not free drbg->jent
crypto_free_rng(drbg->jent)
Need to free drbg->jent if add_random_ready_callback return fail.
Fixes: 97f2650e5040 ("crypto: drbg - always seeded with SP800-90B compliant noise source")
Signed-off-by: Zheng Bin <zhengbin13@xxxxxxxxxx>
---
crypto/drbg.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 37526eb8c5d5..a643ab7eac7a 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1524,6 +1524,8 @@ static int drbg_prepare_hrng(struct drbg_state *drbg)
/* fall through */
default:
+ crypto_free_rng(drbg->jent);
+ drbg->jent = NULL;
drbg->random_ready.func = NULL;
return err;
}
--
2.26.0.106.g9fadedd
