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render/egl: prevent use-after-free when destroying current surface
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1 changed files with 7 additions and 0 deletions
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@ -646,5 +646,12 @@ bool wlr_egl_destroy_surface(struct wlr_egl *egl, EGLSurface surface) {
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if (!surface) {
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return true;
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}
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if (eglGetCurrentContext() == egl->context &&
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eglGetCurrentSurface(EGL_DRAW) == surface) {
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// Reset the current EGL surface in case it's the one we're destroying,
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// otherwise the next wlr_egl_make_current call will result in a
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// use-after-free.
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wlr_egl_make_current(egl, NULL, NULL);
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}
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return eglDestroySurface(egl->display, surface);
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}
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