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Commit 0c4cacce authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "msm: kgsl: Fix overflow in sharedmem cache range operation function"

parents cd0604f8 70496cbb

drivers/gpu/msm/kgsl_sharedmem.c

+3 −4
Original line number Diff line number Diff line
@@ -574,12 +574,11 @@ int kgsl_cache_range_op(struct kgsl_memdesc *memdesc, uint64_t offset, 
	void *addr = (memdesc->hostptr) ?

		memdesc->hostptr : (void *) memdesc->useraddr;



	/* Make sure that size is non-zero */

	if (!size)

	if (size == 0 || size > UINT_MAX)

		return -EINVAL;



	/* Make sure that the offset + size isn't bigger than we can handle */

	if ((offset + size) > ULONG_MAX)

	/* Make sure that the offset + size does not overflow */

	if ((offset + size < offset) || (offset + size < size))

		return -ERANGE;



	/* Make sure the offset + size do not overflow the address */