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 7BB94255221; Mon, 7 Apr 2025 18:15:32 +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=1744049732; cv=none; b=HOpXiKTR6FxcSVGMc8ZElApJ5LmXP1N0cULhC5m2L8ZfXVnVuSjBflk0eNYs/eIck1gzuS6MaAXdhmgmPbbp4TMbpWCF1JLgIiKec69/onEx2Z834k7GuHGkxhHrfKhqW6AkLYodjIbOnYxUA7e65RlJ/uOuwONtXKXDFspWebs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744049732; c=relaxed/simple; bh=9lnZvdYWucsD43LgxrIBgPkhCQuCm3u66wDOkTVnmIw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=lBQxHWDvTAp7khoRc/af/285VVAxExb3npCMvsO1b/ZUN+Fp3YBygOVfdPM/nRrIDkQa5pMSmOEj3WYzuaT+u0JRHWvbNIRPRD5OTApSQXGPm9/1D9tsFSgv8LdWiiS/bH3+rAG2pQehP9S4+yx4a0qlB23oAQvcZ9/gMS+2qvQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=thAmL8VY; 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="thAmL8VY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B67B0C4CEEA; Mon, 7 Apr 2025 18:15:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744049732; bh=9lnZvdYWucsD43LgxrIBgPkhCQuCm3u66wDOkTVnmIw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=thAmL8VY6DYY8a3gSfFzvB4C7s8tzb1EZ8zpMLNfNFsoW4tTdaGwP7THjwWtVKzfd DmdabyBEfi1gHz8VYgvkPgpGWRJ77cDqskzcLGstl9hzTHV8vykSX2kzUmnD+KEZke dBuxjWdeVluOLkWK4Trm2p3wuZznFGYIqMlAmrfJBoH3kc56FwvI5IvOji6F+Rt4vM pcGR7Aic+MeRvqhUAVzak1cc2W+THHhw8AtqxG0QPCiCccPeYobfhVuo9df/qbtWQU UeSyXle5pH0Ulpq09a0BPVJFTnsIq0jIHcChn/lkr8JesvQAgszyN3TaoqEp65OYoo F74+fCPU7UBMw== 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 5.15 7/8] usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev() Date: Mon, 7 Apr 2025 14:15:13 -0400 Message-Id: <20250407181516.3183864-7-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250407181516.3183864-1-sashal@kernel.org> References: <20250407181516.3183864-1-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 5.15.179 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 d918e8b2af3c2..c5f7123837751 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/dev.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/dev.c @@ -538,6 +538,9 @@ 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