diff --git a/CHANGES b/CHANGES
index 6c78e6486..a551be71b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,7 @@ Emulation fixes:
  - GB Serialize: Fix loading MBC1 states that affect bank 0 (fixes mgba.io/i/2402)
  - GBA I/O: Disable open bus behavior on invalid register 06A
  - GBA Video: Ignore horizontally off-screen sprite timing (fixes mgba.io/i/2391)
+ - GBA Video: Fix rare crash in modes 3-5
 Other fixes:
  - FFmpeg: Fix crash when encoding audio with some containers
  - FFmpeg: Fix GIF recording (fixes mgba.io/i/2393)
diff --git a/src/gba/renderers/software-bg.c b/src/gba/renderers/software-bg.c
index 57fc26491..1f4aba5a1 100644
--- a/src/gba/renderers/software-bg.c
+++ b/src/gba/renderers/software-bg.c
@@ -158,7 +158,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode3(struct GBAVideoSoftwareRenderer
 	BACKGROUND_BITMAP_INIT;
 
 	uint32_t color = renderer->normalPalette[0];
-	if (mosaicWait && localX >= 0 && localY >= 0) {
+	if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < GBA_VIDEO_HORIZONTAL_PIXELS && (localY >> 8) < GBA_VIDEO_VERTICAL_PIXELS) {
 		LOAD_16(color, ((localX >> 8) + (localY >> 8) * GBA_VIDEO_HORIZONTAL_PIXELS) << 1, renderer->d.vram);
 		color = mColorFrom555(color);
 	}
@@ -201,7 +201,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode4(struct GBAVideoSoftwareRenderer
 	if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
 		offset = 0xA000;
 	}
-	if (mosaicWait && localX >= 0 && localY >= 0) {
+	if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < GBA_VIDEO_HORIZONTAL_PIXELS && (localY >> 8) < GBA_VIDEO_VERTICAL_PIXELS) {
 		color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * GBA_VIDEO_HORIZONTAL_PIXELS];
 	}
 
@@ -242,7 +242,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode5(struct GBAVideoSoftwareRenderer
 	if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
 		offset = 0xA000;
 	}
-	if (mosaicWait && localX >= 0 && localY >= 0) {
+	if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < 160 && (localY >> 8) < 128) {
 		LOAD_16(color, offset + (localX >> 8) * 2 + (localY >> 8) * 320, renderer->d.vram);
 		color = mColorFrom555(color);
 	}