We need to decrement this refcounter on these error paths.
Fixes: f7d76e05d058 ("crypto: user - fix use_after_free of struct xxx_request")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
crypto/rng.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/crypto/rng.c b/crypto/rng.c
index 1e21231f71c9..1490d210f1a1 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -37,12 +37,16 @@ int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
crypto_stats_get(alg);
if (!seed && slen) {
buf = kmalloc(slen, GFP_KERNEL);
- if (!buf)
+ if (!buf) {
+ crypto_alg_put(alg);
return -ENOMEM;
+ }
err = get_random_bytes_wait(buf, slen);
- if (err)
+ if (err) {
+ crypto_alg_put(alg);
goto out;
+ }
seed = buf;
}
--
2.11.0
