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crypto: rng - Free default RNG on module exit

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[ Upstream commit 606ba888b9 ]

When the rng module is removed the default RNG will be leaked.
Call crypto_del_default_rng to free it if possible.

Fixes: 7cecadb7cc ("crypto: rng - Do not free default RNG when it becomes unused")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Herbert Xu
2026-07-24 16:16:10 +02:00
committed by Greg Kroah-Hartman
parent fb4d57b833
commit 2ba2373151
1 changed files with 11 additions and 0 deletions
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crypto/rng.c
+11
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@@ -226,5 +226,16 @@ void crypto_unregister_rngs(struct rng_alg *algs, int count)
}
EXPORT_SYMBOL_GPL(crypto_unregister_rngs);
static void __exit rng_exit(void)
{
int err;
err = crypto_del_default_rng();
if (err)
pr_err("Failed delete default RNG: %d\n", err);
}
module_exit(rng_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Random Number Generator");