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 395F03624A1; Tue, 16 Dec 2025 12:08:52 +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=1765886932; cv=none; b=XDD59KgbI7TUDfSjvygA5H/qs/4SFA+wKEqOLxYXdEgUKCuaQ4oTxJln0Q6bMd69FesqGPQec5ALMUis1bRyq3gqEl6+ZQLwPyM9SNNGg1X6UfioR95sVmp1LpcWP762U6DTABNHjnrcGj8SlZHk4bE2bC2O5P3ifsppUebY7Zs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765886932; c=relaxed/simple; bh=sPoiQuDLKUdP7CaCxxKrIRbfGRqlJgLIWSNLlWpcd/g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sTswJyYF8sQSDhuYrx9l7hGbPo3y5+nRlv3ld+xuJFZhlJGq7t7Hj4lD0VBEIQNn4KzokuDqmWfJIqhVqurwZboPCbrvQ0ZHys6r5Nm5DsihOTVwfRPL458S2Q9ufWeY1zPBJsri54/+QWSoKitMAMjv7TQG+QplsqFRntjxA88= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JYsg+i4H; 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="JYsg+i4H" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5154C4CEF1; Tue, 16 Dec 2025 12:08:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765886932; bh=sPoiQuDLKUdP7CaCxxKrIRbfGRqlJgLIWSNLlWpcd/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JYsg+i4H2guBL6SzYibcTz/DyWO1fV6egi4ZbW6tlK4EJBvnDlOYNH1ABOtrda2Oi yXjwKGgiT7Fl4yDvn58UF8RNsclaC+IaPRTDlidx9K6RKXKCLjGPQ8iOj65ePsp37M F39P5dM5DKY/1aZ+x7LRF2JWmaRGyr8xPsyfQlGw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Li Qiang , Sasha Levin Subject: [PATCH 6.18 077/614] uio: uio_fsl_elbc_gpcm:: Add null pointer check to uio_fsl_elbc_gpcm_probe Date: Tue, 16 Dec 2025 12:07:24 +0100 Message-ID: <20251216111404.106758072@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111401.280873349@linuxfoundation.org> References: <20251216111401.280873349@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 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Li Qiang [ Upstream commit d48fb15e6ad142e0577428a8c5028136e10c7b3d ] devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: d57801c45f53e ("uio: uio_fsl_elbc_gpcm: use device-managed allocators") Signed-off-by: Li Qiang Link: https://patch.msgid.link/20251015064020.56589-1-liqiang01@kylinos.cn Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/uio/uio_fsl_elbc_gpcm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/uio/uio_fsl_elbc_gpcm.c b/drivers/uio/uio_fsl_elbc_gpcm.c index 81454c3e2484c..338dd2aaabc87 100644 --- a/drivers/uio/uio_fsl_elbc_gpcm.c +++ b/drivers/uio/uio_fsl_elbc_gpcm.c @@ -384,6 +384,11 @@ static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev) /* set all UIO data */ info->mem[0].name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn", node); + if (!info->mem[0].name) { + ret = -ENODEV; + goto out_err3; + } + info->mem[0].addr = res.start; info->mem[0].size = resource_size(&res); info->mem[0].memtype = UIO_MEM_PHYS; @@ -423,6 +428,8 @@ static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev) out_err2: if (priv->shutdown) priv->shutdown(info, true); + +out_err3: iounmap(info->mem[0].internal_addr); return ret; } -- 2.51.0