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Segmentation fault in parent rng cleanup

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CLA: trivial
When `cleanup_entropy()` is called to cleanup parent by calling
provided `OSSL_FUNC_rand_clear_seed_fn` method, incorrect random
context is passed to the method. So accessing that context creates
a segmentation fault. Parent context should be passed rather than
DRBG's own context.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20454)
This commit is contained in:
afshinpir 2023-03-08 16:42:00 +13:00 committed by Pauli
parent a3207163ef
commit 6d45fd47f4
1 changed files with 1 additions and 1 deletions
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2
providers/implementations/rands/drbg.c
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@ -255,7 +255,7 @@ static void cleanup_entropy(PROV_DRBG *drbg, unsigned char *out, size_t outlen)
} else if (drbg->parent_clear_seed != NULL) {
if (!ossl_drbg_lock_parent(drbg))
return;
drbg->parent_clear_seed(drbg, out, outlen);
drbg->parent_clear_seed(drbg->parent, out, outlen);
ossl_drbg_unlock_parent(drbg);
}
}