Re: [PATCH V3 1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init

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Am 19.04.23 um 14:20 schrieb hackyzh002:
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@xxxxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx> for the series.

---
  drivers/gpu/drm/radeon/radeon_cs.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

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;




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