From patchwork Sun Jul 2 18:04:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 1802451 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QvH6V2HyXz242S for ; Mon, 3 Jul 2023 04:05:54 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qG1Rs-0000bW-Rs; Sun, 02 Jul 2023 14:05:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qG1RX-0000a6-Hi; Sun, 02 Jul 2023 14:05:03 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qG1RT-00053a-Rs; Sun, 02 Jul 2023 14:05:02 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 5D7CA10DEA; Sun, 2 Jul 2023 21:04:53 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 93BA4111FE; Sun, 2 Jul 2023 21:04:51 +0300 (MSK) Received: (nullmailer pid 2122353 invoked by uid 1000); Sun, 02 Jul 2023 18:04:51 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org, qemu-stable@nongnu.org Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Michael Tokarev Subject: [Stable-8.0.3 55/65] ui: return NULL when getting cursor without a console Date: Sun, 2 Jul 2023 21:04:28 +0300 Message-Id: <20230702180439.2122316-1-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau VNC may try to get the current cursor even when there are no consoles and crashes. Simple reproducer is qemu with -nodefaults. Fixes: (again) https://gitlab.com/qemu-project/qemu/-/issues/1548 Fixes: commit 385ac97f8 ("ui: keep current cursor with QemuConsole") Signed-off-by: Marc-André Lureau Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20230428154807.2143652-1-marcandre.lureau@redhat.com> (cherry picked from commit 333e7599a0d723801235f675719008ce43db93e3) Signed-off-by: Michael Tokarev diff --git a/ui/console.c b/ui/console.c index e173731e20..7461446e71 100644 --- a/ui/console.c +++ b/ui/console.c @@ -2306,7 +2306,7 @@ QEMUCursor *qemu_console_get_cursor(QemuConsole *con) if (con == NULL) { con = active_console; } - return con->cursor; + return con ? con->cursor : NULL; } bool qemu_console_is_visible(QemuConsole *con)