nvidia-390xx-kmod-0092-fix_index_0_is_out_of_range_kernel_6.8_traces.patch

From 2c7072fb5543e2be99f22682f6b561ece81dfdd6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20Vi=C3=A9ville?= <nicolas.vieville@uphf.fr>
Date: Thu, 3 Oct 2024 14:35:02 +0200
Subject: [PATCH] Fix for 'index 0 is out of range for type 'uvm_gpu_chunk_t
 *[*]' and uvm_page_directory_t *[*]' kernel 6.8.x traces. Suggested by: 
 https://forums.developer.nvidia.com/t/\ 
 ubsan-array-index-out-of-bounds-complaints-in-newer-kernels/271705/5 Thanks
 to Bruce Jerrick  https://bugzilla.rpmfusion.org/show_bug.cgi?id=7069
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Signed-off-by: Nicolas Viéville <nicolas.vieville@uphf.fr>
---
 kernel/nvidia-uvm/uvm8_mmu.h     | 2 +-
 kernel/nvidia-uvm/uvm8_pmm_gpu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/nvidia-uvm/uvm8_mmu.h b/kernel/nvidia-uvm/uvm8_mmu.h
index cddd43f..cf50c95 100644
--- a/kernel/nvidia-uvm/uvm8_mmu.h
+++ b/kernel/nvidia-uvm/uvm8_mmu.h
@@ -76,7 +76,7 @@ struct uvm_page_directory_struct
 
     // pointers to child directories on the host.
     // this array is variable length, so it needs to be last to allow it to take up extra space
-    uvm_page_directory_t *entries[0];
+    uvm_page_directory_t *entries[];
 };
 
 struct uvm_mmu_mode_hal_struct
diff --git a/kernel/nvidia-uvm/uvm8_pmm_gpu.c b/kernel/nvidia-uvm/uvm8_pmm_gpu.c
index 602a286..6f0857e 100644
--- a/kernel/nvidia-uvm/uvm8_pmm_gpu.c
+++ b/kernel/nvidia-uvm/uvm8_pmm_gpu.c
@@ -209,7 +209,7 @@ struct uvm_pmm_gpu_chunk_suballoc_struct
     // Array of all child subchunks
     // TODO: Bug 1765461: Can the array be inlined? It could save the parent
     //       pointer.
-    uvm_gpu_chunk_t *subchunks[0];
+    uvm_gpu_chunk_t *subchunks[];
 };
 
 typedef enum
-- 
2.46.2