From 4e16a5b68bbec9351a524e369176a3e62c7e72f5 Mon Sep 17 00:00:00 2001
From: Ian Forbes <ian.forbes@broadcom.com>
Date: Mon, 24 Nov 2025 10:12:25 -0600
Subject: [PATCH] svga: Check if Stencil buffer is NULL

Fixes a nullptr dereference on older HW versions.

Fixes: f29d9398242 ("svga: rework framebuffer state")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38623>
---
 src/gallium/drivers/svga/svga_state_framebuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/svga/svga_state_framebuffer.c b/src/gallium/drivers/svga/svga_state_framebuffer.c
index 75e172629a8..e5ee4935d3b 100644
--- a/src/gallium/drivers/svga/svga_state_framebuffer.c
+++ b/src/gallium/drivers/svga/svga_state_framebuffer.c
@@ -84,7 +84,7 @@ emit_fb_vgpu9(struct svga_context *svga)
       if (svga_surface_needs_propagation(hwfb->zsbuf))
          svga_propagate_surface(svga, hwfb->zsbuf, true);
 
-      if (currfb->zsbuf->base.texture &&
+      if (currfb->zsbuf && currfb->zsbuf->base.texture &&
           util_format_is_depth_and_stencil(currfb->zsbuf->base.format)) {
          ret = SVGA3D_SetRenderTarget(svga->swc, SVGA3D_RT_STENCIL,
                                       currfb->zsbuf);