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 09C862EBDCC; Tue, 17 Jun 2025 15:40:07 +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=1750174808; cv=none; b=rnbecIYHcZ3dvagVcebK7JuEaWKdNDmu2YvDsDgQe05/kfTEu69lMG/rYa6eqYlbS/xKl4zRtpYsZZmWShmfRUwdP5FKGhKVmnnQw+pU0ghhGDjQ2zEW6UQvSoJbccm8tiw6PokT241WIBIM+EexLeVqesaKYL8K96mYJnVOteE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750174808; c=relaxed/simple; bh=gn1nI8nXDPCppWdDXW6Klavs0mgG17SrCDlZBPSg4XM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fy/MtlyHLK0XDlTpb6DbbCfw7d81y9op5vjBmZS3atgDPuULYZ0Gg01ga01uPXILrs9ObbCcDoZF7SZXily7qesJliAXZatTlRcFMcYG5fvqq7edfdO5p32dXISuSJ0DOkVspiTqFCLP3nYoi6bc22WSPotUpaFoFdi78pseWDQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=d+5k1Wqg; 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="d+5k1Wqg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B4B2C4CEE3; Tue, 17 Jun 2025 15:40:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750174807; bh=gn1nI8nXDPCppWdDXW6Klavs0mgG17SrCDlZBPSg4XM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=d+5k1WqgiXjZ4dLd/kzyoosueJ9zJkH9fMJF7RYjvs68D4BbUria2I+eOP0XNofz2 evdnedGLKJ42bPLG+G4/QvhJGKZpyXNgFJ9Y6TQpwJOduTMn6dZ0shWc5rWcZoWRON hW8pQrf83qOOKyeE9g6sakkDTSQQgF9a9GxqgPTI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Henry Martin , Dave Stevenson , Stefan Wahren , Stephen Boyd , Sasha Levin Subject: [PATCH 6.6 115/356] clk: bcm: rpi: Add NULL check in raspberrypi_clk_register() Date: Tue, 17 Jun 2025 17:23:50 +0200 Message-ID: <20250617152342.856652545@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152338.212798615@linuxfoundation.org> References: <20250617152338.212798615@linuxfoundation.org> User-Agent: quilt/0.68 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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Henry Martin [ Upstream commit 73c46d9a93d071ca69858dea3f569111b03e549e ] devm_kasprintf() returns NULL when memory allocation fails. Currently, raspberrypi_clk_register() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue. Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks") Signed-off-by: Henry Martin Reviewed-by: Dave Stevenson Link: https://lore.kernel.org/r/20250402020513.42628-1-bsdhenrymartin@gmail.com Reviewed-by: Stefan Wahren Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/bcm/clk-raspberrypi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 4d411408e4afe..cc4ca336ac13a 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -271,6 +271,8 @@ static struct clk_hw *raspberrypi_clk_register(struct raspberrypi_clk *rpi, init.name = devm_kasprintf(rpi->dev, GFP_KERNEL, "fw-clk-%s", rpi_firmware_clk_names[id]); + if (!init.name) + return ERR_PTR(-ENOMEM); init.ops = &raspberrypi_firmware_clk_ops; init.flags = CLK_GET_RATE_NOCACHE; -- 2.39.5