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 03478330B11; Fri, 17 Oct 2025 15:45:48 +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=1760715948; cv=none; b=LaqlNKtV1nVG70ae/ehnIAl7QtIIWhG7S6y0yH0VPnFVMOVcvmoQFBpz6oxA/H8iwqe/0SRgb4jHVUs9ho3akXcQKCyXi1VF7+3QBZYLqyld51Sf1EKN9pGRCZ2PouMED4MmkmfL48Q73XknCLEv0l4ZJR8sp4HBsavEh8CEKuY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760715948; c=relaxed/simple; bh=XMRetHSpKS/R1jWK1QRQZRzQOufJb4COPQ4mIMbcV/I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k/7EjB5YC3+V2cyBz5PI9Y3TFhMOE/zaOW9qKOELssZBkzSGlTUfoPWl0TSjf6nZFjA+5LhPinJwP59pBhH4OhPXa79FXOv8MnReCVWy/EmI2AMlsC25izrnVJhzJ7HUgu8R52NotKJPUEZ2TW5RbPCbs0T5lfM3cxVaC69mlSM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AoF0VEZy; 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="AoF0VEZy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79E50C4CEE7; Fri, 17 Oct 2025 15:45:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760715947; bh=XMRetHSpKS/R1jWK1QRQZRzQOufJb4COPQ4mIMbcV/I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AoF0VEZy4fnpMA3fpLmd6bwba1v0YRNamj/SWSp5Ob9APH48ev27GdNca3COY4Mh/ w6Q3snq2g/fzvlAgpKGCNeXZ0m2LFPxFNf8L3YXZ9wZXJwE7FdnlEFeVZ0roz+rSIr VNU5Uaq0ykFslNgaJ1fmzqvGcblqI1lpra5rVjVY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yiqi Sun , Herbert Xu Subject: [PATCH 5.15 020/276] crypto: rng - Ensure set_ent is always present Date: Fri, 17 Oct 2025 16:51:53 +0200 Message-ID: <20251017145143.138615380@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251017145142.382145055@linuxfoundation.org> References: <20251017145142.382145055@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-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 @@ -174,6 +174,11 @@ 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; @@ -185,6 +190,9 @@ 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);