diff options
| author | hackyzh002 <hackyzh002@gmail.com> | 2023-04-19 20:20:58 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-21 08:50:21 -0400 |
| commit | f828b681d0cd566f86351c0b913e6cb6ed8c7b9c (patch) | |
| tree | 77b8f06dfe8d10fb98770b9583ee9209e4495c85 /drivers/gpu/drm/radeon/radeon_cs.c | |
| parent | 4f63b7a59926eb7fb50091e796170a10a8ef4091 (diff) | |
drm/radeon: Fix integer overflow in radeon_cs_parser_init
The type of size is unsigned, if size is 0x40000000, there will be an
integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: hackyzh002 <hackyzh002@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 46a27ebf4588..a6700d7278bf 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -270,7 +270,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) { struct drm_radeon_cs *cs = data; uint64_t *chunk_array_ptr; - unsigned size, i; + u64 size; + unsigned i; u32 ring = RADEON_CS_RING_GFX; s32 priority = 0; |