From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3D3B53502A8; Wed, 30 Sep 2026 19:04:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790795041; cv=none; b=DqO+4fypHTdbHImCh1MzjFZ7JJpJhM/QsIFvyZ+sG3sQGWWxwiNrLjcju+495DKevUbzpkjdRoMcw8vFQy34ClCW1H0hI0SfUy0WXhIASWEw8Tl5i3+tfqS3juIg6In+ChzdfVjPucW8u6PqF5/4ufB32uMFNpdeAVfaO04W1H8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790795041; c=relaxed/simple; bh=xaxUUxxOovd4aLn6LSsvM/0g0CqifF0gqoGWiJfdLZ8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gmBQ6cU572znsLqo3vI2ZGCFQKV9hbZ49cexer+msbq8/0DwhRJSVz9bhm4Cz3LH79ToJi257HZGbjf8B9bc2t5SknUxTUSzHd/paxpHl3I3B5pCzZ2eKDg0LOHoo33uBG+Qu9cB7sjYdAeWJrvcgdRL1AzuiorNzAH6sP1BYVM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AfRneyGU; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="AfRneyGU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 983611F000FF; Wed, 30 Sep 2026 19:03:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790795040; bh=o4N7b/PXFQRUUukXvQaAoKJR4pCUT9NG9YMvTC1tQbs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=AfRneyGU1Xhu7e8SI/hKv+I8XmkmBb4IHtc0vG/I4UOCYFRJktCypstzfff0MPOtv Zuf9xwTCSCQFc1+W2uNU9CnoLdGRNKi35VxsOm24eydB6fu2ZSjNlfjUWa2a6lwvQn rPPfd1xcRdEh48gSJ0u0RtQV4faKSNzSdIMT6ZD4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Dmitry Osipenko , Sasha Levin Subject: [PATCH 6.6 0377/1193] drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create() Date: Wed, 30 Sep 2026 17:17:41 +0200 Message-ID: <20260930152442.554161122@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152434.301151190@linuxfoundation.org> References: <20260930152434.301151190@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit 94579f24e2b526a04eb41050af0ba018c6f528e7 ] Smatch complains that returning a NULL here will lead to a NULL pointer dereference in drm_mode_addfb2(). Return an error pointer instead. Fixes: dc5698e80cf7 ("Add virtio gpu driver.") Signed-off-by: Dan Carpenter Signed-off-by: Dmitry Osipenko Link: https://patch.msgid.link/an1tWfHIHwtXd9SO@stanley.mountain Signed-off-by: Sasha Levin --- drivers/gpu/drm/virtio/virtgpu_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c index ad924a8502e90..d5cc5e89dbc1e 100644 --- a/drivers/gpu/drm/virtio/virtgpu_display.c +++ b/drivers/gpu/drm/virtio/virtgpu_display.c @@ -320,7 +320,7 @@ virtio_gpu_user_framebuffer_create(struct drm_device *dev, if (ret) { kfree(virtio_gpu_fb); drm_gem_object_put(obj); - return NULL; + return ERR_PTR(ret); } return &virtio_gpu_fb->base; -- 2.53.0