From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 943EF2F3C04; Fri, 10 Oct 2025 13:18:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760102293; cv=none; b=fayvIURt24XsiVSB3QE651MwwecwALb3qTfFz2EIsip7oeivzxsc5wiUZ+4qs/8hpAkngMUpNNaqYeCZD62cn0xwGjFRqdvEhZObFSNhpUFKk3Ph8bIpSdjIhJufDYRAxZXUuaPzOv3WK6Ku1fpehC0fZyPxJcNepIfBfKeFTiM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760102293; c=relaxed/simple; bh=WlZV3hOjuoFtyFcDhu6LeejVQzLj8+8S29wtpS0hnCE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hmuKB4GCFFNnbpDqmWIEWgyoiosYO9Y9qk4xskQRqu9zyzMhZ1uCbnlGmHbkax4lIuyyI9Pj/Hxs6KeD+/IVDBJMHZ+c0jVO+67gssC1BbuWRbkVRW/55KDFkx05xDgyd5m2V1wHwty7tzeBNhX10TE/bZuK9Wt3KBI7x//BEc4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ogFAKDW5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ogFAKDW5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1CE86C4CEF1; Fri, 10 Oct 2025 13:18:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760102293; bh=WlZV3hOjuoFtyFcDhu6LeejVQzLj8+8S29wtpS0hnCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ogFAKDW52Oo+nQEsqvpdrWYCi68gKzXOyGyw5kEPREJxGLk/qIax/nV/ysSDR9D06 sYTluoarmHwkmzAM1goUfLWKuds40pUAGQdJPcSMGifAhr1zqlSqXgx78OjuFJdWLN iFqVuYr7grroXHTB3KHuBlmNbbCJH/25oG19ksE0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yiqi Sun , Herbert Xu Subject: [PATCH 6.17 22/26] crypto: rng - Ensure set_ent is always present Date: Fri, 10 Oct 2025 15:16:17 +0200 Message-ID: <20251010131332.013571812@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251010131331.204964167@linuxfoundation.org> References: <20251010131331.204964167@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Herbert Xu commit c0d36727bf39bb16ef0a67ed608e279535ebf0da upstream. Ensure that set_ent is always set since only drbg provides it. Fixes: 77ebdabe8de7 ("crypto: af_alg - add extra parameters for DRBG interface") Reported-by: Yiqi Sun Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- crypto/rng.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/crypto/rng.c +++ b/crypto/rng.c @@ -168,6 +168,11 @@ out: EXPORT_SYMBOL_GPL(crypto_del_default_rng); #endif +static void rng_default_set_ent(struct crypto_rng *tfm, const u8 *data, + unsigned int len) +{ +} + int crypto_register_rng(struct rng_alg *alg) { struct crypto_alg *base = &alg->base; @@ -179,6 +184,9 @@ int crypto_register_rng(struct rng_alg * base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; base->cra_flags |= CRYPTO_ALG_TYPE_RNG; + if (!alg->set_ent) + alg->set_ent = rng_default_set_ent; + return crypto_register_alg(base); } EXPORT_SYMBOL_GPL(crypto_register_rng);