From 4d95e29b87217ac12de97bf4031603c36055b6ac Mon Sep 17 00:00:00 2001 From: Ulrich Sibiller Date: Mon, 4 Jan 2021 19:50:31 +0100 Subject: Window.c: check for malloc failure PVS finding: "V522 There might be dereferencing of a potential null pointer 'props'" --- nx-X11/programs/Xserver/hw/nxagent/Window.c | 35 ++++++++++++++++++----------- 1 file changed, 22 insertions(+), 13 deletions(-) (limited to 'nx-X11') diff --git a/nx-X11/programs/Xserver/hw/nxagent/Window.c b/nx-X11/programs/Xserver/hw/nxagent/Window.c index 367c15841..811b5b565 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/Window.c +++ b/nx-X11/programs/Xserver/hw/nxagent/Window.c @@ -3090,27 +3090,36 @@ static void nxagentReconnectWindow(void * param0, XID param1, void * data_buffer (void*)pWin, pWin -> drawable.id, nxagentWindow(pWin)); #endif + /* FIXME: use XAllocSizeHints() */ #ifdef _XSERVER64 data64 = (unsigned char *) malloc(sizeof(XSizeHints) + 4); + if (data64) + { + for (int i = 0; i < 4; i++) + { + *(data64 + i) = *(data + i); + } - for (int i = 0; i < 4; i++) - { - *(data64 + i) = *(data + i); - } - - *(((int *) data64) + 1) = 0; + *(((int *) data64) + 1) = 0; - for (int i = 8; i < sizeof(XSizeHints) + 4; i++) - { - *(data64 + i) = *(data + i - 4); - } + for (int i = 8; i < sizeof(XSizeHints) + 4; i++) + { + *(data64 + i) = *(data + i - 4); + } - XSizeHints *props = (XSizeHints *) data64; + XSizeHints *props = (XSizeHints *) data64; #else - XSizeHints *props = (XSizeHints *) data; + XSizeHints *props = (XSizeHints *) data; #endif /* _XSERVER64 */ - hints = *props; + hints = *props; + } + else + { + #ifdef WARNING + fprintf(stderr, "%s: Failed to alloc memory for XSizeHints\n", __func__); + #endif + } } else { -- cgit v1.2.3