| Message ID | 20230419122058.3420-1-hackyzh002@gmail.com |
|---|---|
| State | Accepted |
| Commit | f828b681d0cd566f86351c0b913e6cb6ed8c7b9c |
| Headers | show |
| Series | [V3,1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init | expand |
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 46a27ebf4..a6700d727 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;
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 Signed-off-by: hackyzh002 <hackyzh002@gmail.com> --- drivers/gpu/drm/radeon/radeon_cs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)