drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga

For pptable structs that use flexible array sizes, use flexible arrays.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2036742
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
index 57bca1e81d3a7dcc232fc589b4351e93f93e5268..9fcad69a9f34461f9cb3f5b4d1c5b88130b50c41 100644 (file)
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
@@ -164,7 +164,7 @@ typedef struct _ATOM_Tonga_State {
 typedef struct _ATOM_Tonga_State_Array {
        UCHAR ucRevId;
        UCHAR ucNumEntries;             /* Number of entries. */
-       ATOM_Tonga_State entries[1];    /* Dynamically allocate entries. */
+       ATOM_Tonga_State entries[];     /* Dynamically allocate entries. */
 } ATOM_Tonga_State_Array;
 
 typedef struct _ATOM_Tonga_MCLK_Dependency_Record {
@@ -210,7 +210,7 @@ typedef struct _ATOM_Polaris_SCLK_Dependency_Record {
 typedef struct _ATOM_Polaris_SCLK_Dependency_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                     /* Number of entries. */
-       ATOM_Polaris_SCLK_Dependency_Record entries[1];                          /* Dynamically allocate entries. */
+       ATOM_Polaris_SCLK_Dependency_Record entries[];                           /* Dynamically allocate entries. */
 } ATOM_Polaris_SCLK_Dependency_Table;
 
 typedef struct _ATOM_Tonga_PCIE_Record {
@@ -222,7 +222,7 @@ typedef struct _ATOM_Tonga_PCIE_Record {
 typedef struct _ATOM_Tonga_PCIE_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                                             /* Number of entries. */
-       ATOM_Tonga_PCIE_Record entries[1];                                                      /* Dynamically allocate entries. */
+       ATOM_Tonga_PCIE_Record entries[];                                                       /* Dynamically allocate entries. */
 } ATOM_Tonga_PCIE_Table;
 
 typedef struct _ATOM_Polaris10_PCIE_Record {
@@ -235,7 +235,7 @@ typedef struct _ATOM_Polaris10_PCIE_Record {
 typedef struct _ATOM_Polaris10_PCIE_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                         /* Number of entries. */
-       ATOM_Polaris10_PCIE_Record entries[1];                      /* Dynamically allocate entries. */
+       ATOM_Polaris10_PCIE_Record entries[];                      /* Dynamically allocate entries. */
 } ATOM_Polaris10_PCIE_Table;
 
 
@@ -252,7 +252,7 @@ typedef struct _ATOM_Tonga_MM_Dependency_Record {
 typedef struct _ATOM_Tonga_MM_Dependency_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                                             /* Number of entries. */
-       ATOM_Tonga_MM_Dependency_Record entries[1];                        /* Dynamically allocate entries. */
+       ATOM_Tonga_MM_Dependency_Record entries[];                         /* Dynamically allocate entries. */
 } ATOM_Tonga_MM_Dependency_Table;
 
 typedef struct _ATOM_Tonga_Voltage_Lookup_Record {
@@ -265,7 +265,7 @@ typedef struct _ATOM_Tonga_Voltage_Lookup_Record {
 typedef struct _ATOM_Tonga_Voltage_Lookup_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                                             /* Number of entries. */
-       ATOM_Tonga_Voltage_Lookup_Record entries[1];                            /* Dynamically allocate entries. */
+       ATOM_Tonga_Voltage_Lookup_Record entries[];                             /* Dynamically allocate entries. */
 } ATOM_Tonga_Voltage_Lookup_Table;
 
 typedef struct _ATOM_Tonga_Fan_Table {