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[SRU,N,2/3] drm/amdgpu: convert some variable sized arrays to [] style

Message ID 20240828085426.3071048-3-juerg.haefliger@canonical.com
State New
Headers show
Series UBSAN: array-index-out-of-bounds in /build/linux-Z1RxaK/linux-6.8.0/drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/processpptables.c:1249:61 (LP: #2078041) | expand

Commit Message

Juerg Haefliger Aug. 28, 2024, 8:54 a.m. UTC 
From: Alex Deucher <alexander.deucher@amd.com>

BugLink: https://bugs.launchpad.net/bugs/2078041

Replace [1] with [].  Silences UBSAN warnings.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3107
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 4953be13bebb3e6c9dffcfe0714de553155cac90)
Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
---
 drivers/gpu/drm/amd/include/pptable.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/amd/include/pptable.h b/drivers/gpu/drm/amd/include/pptable.h
index 5077c2ce4469..2e8e6c9875f6 100644
--- a/drivers/gpu/drm/amd/include/pptable.h
+++ b/drivers/gpu/drm/amd/include/pptable.h
@@ -491,7 +491,7 @@  typedef struct _ClockInfoArray{
     //sizeof(ATOM_PPLIB_CLOCK_INFO)
     UCHAR ucEntrySize;
     
-    UCHAR clockInfo[1];
+    UCHAR clockInfo[];
 }ClockInfoArray;
 
 typedef struct _NonClockInfoArray{
@@ -501,7 +501,7 @@  typedef struct _NonClockInfoArray{
     //sizeof(ATOM_PPLIB_NONCLOCK_INFO)
     UCHAR ucEntrySize;
     
-    ATOM_PPLIB_NONCLOCK_INFO nonClockInfo[1];
+    ATOM_PPLIB_NONCLOCK_INFO nonClockInfo[];
 }NonClockInfoArray;
 
 typedef struct _ATOM_PPLIB_Clock_Voltage_Dependency_Record