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 7B5A2266B76; Mon, 7 Apr 2025 18:14:34 +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=1744049674; cv=none; b=nYfWssAfK3HJxzvQVUzNgycV0P9z5N4HqF59MYifXF6uUzXAiIRjsKcHkLRQ9PL4lsrTG7BFtW7u1sOBR37bSOvlRGqkO9Slhfbf4Zb5EYl9WGvUJnsAuC9KRWxqoU5+MS5g2dlst7IBVho407VcaviOpV8hGsb8uSgTtxPG40E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744049674; c=relaxed/simple; bh=QBJ+dUeJc1CSohXQzdN/Y/YCiwyNb/H1CHJQS7EhYcg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nW73IMTdv/OF7MjB+M2dZ0XR7u+vNE1plvxPuTHFDyjIyQXmFIFHK/dtE/NLwUrDZqLZ2JRw1JGgfkLdAU3zCa3PJItCmKI6W3KEsYHJc60Jmphi4Y2UTf0aQextFh6hMv0VzzcGvNP3sl5e+utTXI/TC04fD8KlWbR1TjKltlE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OSKPNH2g; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OSKPNH2g" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6228C4CEDD; Mon, 7 Apr 2025 18:14:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744049674; bh=QBJ+dUeJc1CSohXQzdN/Y/YCiwyNb/H1CHJQS7EhYcg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OSKPNH2gxVGvOyjRE0Eeu+aCELI7SADmGIMCg/rIT0kx7rRcw8RTXEOuU0AEWqCY+ CxYG9DqW/kCtPtLqXi6QyGlQyIB06GsHp1CdGEab4bUeyq3Ft2lA/t0wNd2zqRFC0A 4dcXjuTJEhBipEzQ2M3QKZy/hlqTJFso4kRMd/8UNLrzqeC4XfT0FtQ4HuvP+xMxK3 39+LsehjzryPi5JqwwBf1UK2DEaaI8eZPeKDSKv5LvHJ6DpidiXI1YkFUkhyZpBc+G yGtSu2/f60OncCFk1uLSZNMtCUG6mJM2Hos3E9C1e8XZ7kvV59CRg9bYbWxGPk5Na2 +coyq7nWLMk7w== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chenyuan Yang , Greg Kroah-Hartman , Sasha Levin , joel@jms.id.au, andrew@codeconstruct.com.au, richardcochran@gmail.com, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 6.6 08/15] usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev() Date: Mon, 7 Apr 2025 14:14:08 -0400 Message-Id: <20250407181417.3183475-8-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250407181417.3183475-1-sashal@kernel.org> References: <20250407181417.3183475-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.86 Content-Transfer-Encoding: 8bit From: Chenyuan Yang [ Upstream commit 8c75f3e6a433d92084ad4e78b029ae680865420f ] The variable d->name, returned by devm_kasprintf(), could be NULL. A pointer check is added to prevent potential NULL pointer dereference. This is similar to the fix in commit 3027e7b15b02 ("ice: Fix some null pointer dereference issues in ice_ptp.c"). This issue is found by our static analysis tool Signed-off-by: Chenyuan Yang Link: https://lore.kernel.org/r/20250311012705.1233829-1-chenyuan0y@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/aspeed-vhub/dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/udc/aspeed-vhub/dev.c b/drivers/usb/gadget/udc/aspeed-vhub/dev.c index 573109ca5b799..a09f72772e6e9 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/dev.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/dev.c @@ -548,6 +548,9 @@ int ast_vhub_init_dev(struct ast_vhub *vhub, unsigned int idx) d->vhub = vhub; d->index = idx; d->name = devm_kasprintf(parent, GFP_KERNEL, "port%d", idx+1); + if (!d->name) + return -ENOMEM; + d->regs = vhub->regs + 0x100 + 0x10 * idx; ast_vhub_init_ep0(vhub, &d->ep0, d); -- 2.39.5