From patchwork Mon Oct 7 19:16:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 13825217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CF14FCFB454 for ; Mon, 7 Oct 2024 19:23:27 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sxtH2-00015u-1d; Mon, 07 Oct 2024 15:20:04 -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 1sxtGi-0007s1-Pg; Mon, 07 Oct 2024 15:19:46 -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 1sxtGg-0004UJ-3P; Mon, 07 Oct 2024 15:19:44 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 354AA9625D; Mon, 7 Oct 2024 22:16:50 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 0FA2114F73D; Mon, 7 Oct 2024 22:16:57 +0300 (MSK) Received: (nullmailer pid 2592799 invoked by uid 1000); Mon, 07 Oct 2024 19:16:54 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Akihiko Odaki , Michael Tokarev Subject: [Stable-9.1.1 32/32] vnc: fix crash when no console attached Date: Mon, 7 Oct 2024 22:16:49 +0300 Message-Id: <20241007191654.2592616-32-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Marc-André Lureau Since commit e99441a3793b5 ("ui/curses: Do not use console_select()") qemu_text_console_put_keysym() no longer checks for NULL console argument, which leads to a later crash: Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault. 0x00005555559ee186 in qemu_text_console_handle_keysym (s=0x0, keysym=31) at ../ui/console-vc.c:332 332 } else if (s->echo && (keysym == '\r' || keysym == '\n')) { (gdb) bt #0 0x00005555559ee186 in qemu_text_console_handle_keysym (s=0x0, keysym=31) at ../ui/console-vc.c:332 #1 0x00005555559e18e5 in qemu_text_console_put_keysym (s=, keysym=) at ../ui/console.c:303 #2 0x00005555559f2e88 in do_key_event (vs=vs@entry=0x5555579045c0, down=down@entry=1, keycode=keycode@entry=60, sym=sym@entry=65471) at ../ui/vnc.c:2034 #3 0x00005555559f845c in ext_key_event (vs=0x5555579045c0, down=1, sym=65471, keycode=) at ../ui/vnc.c:2070 #4 protocol_client_msg (vs=0x5555579045c0, data=, len=) at ../ui/vnc.c:2514 #5 0x00005555559f515c in vnc_client_read (vs=0x5555579045c0) at ../ui/vnc.c:1607 Fixes: e99441a3793b5 ("ui/curses: Do not use console_select()") Fixes: https://issues.redhat.com/browse/RHEL-50529 Cc: qemu-stable@nongnu.org Signed-off-by: Marc-André Lureau Reviewed-by: Akihiko Odaki Reviewed-by: Michael Tokarev Signed-off-by: Michael Tokarev (cherry picked from commit 0e60fc80938d9ce84274a36ddfaaa640bdef2be8) Signed-off-by: Michael Tokarev diff --git a/ui/vnc.c b/ui/vnc.c index dae5d51210..5057ec8680 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -1935,7 +1935,7 @@ static void do_key_event(VncState *vs, int down, int keycode, int sym) } qkbd_state_key_event(vs->vd->kbd, qcode, down); - if (!qemu_console_is_graphic(vs->vd->dcl.con)) { + if (QEMU_IS_TEXT_CONSOLE(vs->vd->dcl.con)) { QemuTextConsole *con = QEMU_TEXT_CONSOLE(vs->vd->dcl.con); bool numlock = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_NUMLOCK); bool control = qkbd_state_modifier_get(vs->vd->kbd, QKBD_MOD_CTRL);