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xwayland/xwm: add prop count assert in xsurface_set_net_wm_state
This helps mitigate buffer overflows.
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parent
cd4827b3b6
commit
13f35139d3
1 changed files with 3 additions and 3 deletions
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@ -294,10 +294,9 @@ static void xwm_surface_activate(struct wlr_xwm *xwm,
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static void xsurface_set_net_wm_state(struct wlr_xwayland_surface *xsurface) {
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struct wlr_xwm *xwm = xsurface->xwm;
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uint32_t property[5];
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int i;
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i = 0;
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uint32_t property[5];
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size_t i = 0;
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if (xsurface->modal) {
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property[i++] = xwm->atoms[NET_WM_STATE_MODAL];
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}
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@ -313,6 +312,7 @@ static void xsurface_set_net_wm_state(struct wlr_xwayland_surface *xsurface) {
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if (xsurface->minimized) {
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property[i++] = xwm->atoms[NET_WM_STATE_HIDDEN];
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}
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assert(i <= sizeof(property) / sizeof(property[0]));
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xcb_change_property(xwm->xcb_conn,
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XCB_PROP_MODE_REPLACE,
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