From 9e58f195620d723a2a0b609aa1c59d4938551835 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Tue, 20 Aug 2024 17:11:12 +0400 Subject: [PATCH 25/38] vnc: fix crash when no console attached MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Marc-André Lureau RH-MergeRequest: 279: vnc: fix crash when no console attached RH-Jira: RHEL-50529 RH-Acked-by: Paolo Bonzini RH-Acked-by: Miroslav Rezanina RH-Commit: [1/1] 0ea2135d95786752fe50c00271be997144adb4bc (marcandre.lureau-rh/qemu-kvm-centos) JIRA: https://issues.redhat.com/browse/RHEL-50529 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: Marc-André Lureau --- ui/vnc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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); -- 2.39.3