diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 61c4e71e399855db74ec9094654b66212f4b1eca..ecada5eadfe3553b79ef1fd144d3e7a7abd01607 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -30,7 +30,6 @@
 #include "amdgpu_eeprom.h"
 
 #define FRU_EEPROM_MADDR        0x60000
-#define I2C_PRODUCT_INFO_OFFSET 0xC0
 
 static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
 {
@@ -77,9 +76,10 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
 }
 
 static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
-				  unsigned char *buf)
+				  unsigned char *buf, size_t buf_size)
 {
-	int ret, size;
+	int ret;
+	u8 size;
 
 	ret = amdgpu_eeprom_read(adev->pm.fru_eeprom_i2c_bus, addrptr, buf, 1);
 	if (ret < 1) {
@@ -90,9 +90,11 @@ static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
 	/* The size returned by the i2c requires subtraction of 0xC0 since the
 	 * size apparently always reports as 0xC0+actual size.
 	 */
-	size = buf[0] - I2C_PRODUCT_INFO_OFFSET;
+	size = buf[0] & 0x3F;
+	size = min_t(size_t, size, buf_size);
 
-	ret = amdgpu_eeprom_read(adev->pm.fru_eeprom_i2c_bus, addrptr + 1, buf, size);
+	ret = amdgpu_eeprom_read(adev->pm.fru_eeprom_i2c_bus, addrptr + 1,
+				 buf, size);
 	if (ret < 1) {
 		DRM_WARN("FRU: Failed to get data field");
 		return ret;
@@ -129,7 +131,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 	 * and the language field, so just start from 0xb, manufacturer size
 	 */
 	addrptr = FRU_EEPROM_MADDR + 0xb;
-	size = amdgpu_fru_read_eeprom(adev, addrptr, buf);
+	size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
 	if (size < 1) {
 		DRM_ERROR("Failed to read FRU Manufacturer, ret:%d", size);
 		return -EINVAL;
@@ -139,7 +141,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 	 * size field being 1 byte. This pattern continues below.
 	 */
 	addrptr += size + 1;
-	size = amdgpu_fru_read_eeprom(adev, addrptr, buf);
+	size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
 	if (size < 1) {
 		DRM_ERROR("Failed to read FRU product name, ret:%d", size);
 		return -EINVAL;
@@ -155,7 +157,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 	adev->product_name[len] = '\0';
 
 	addrptr += size + 1;
-	size = amdgpu_fru_read_eeprom(adev, addrptr, buf);
+	size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
 	if (size < 1) {
 		DRM_ERROR("Failed to read FRU product number, ret:%d", size);
 		return -EINVAL;
@@ -173,7 +175,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 	adev->product_number[len] = '\0';
 
 	addrptr += size + 1;
-	size = amdgpu_fru_read_eeprom(adev, addrptr, buf);
+	size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
 
 	if (size < 1) {
 		DRM_ERROR("Failed to read FRU product version, ret:%d", size);
@@ -181,7 +183,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 	}
 
 	addrptr += size + 1;
-	size = amdgpu_fru_read_eeprom(adev, addrptr, buf);
+	size = amdgpu_fru_read_eeprom(adev, addrptr, buf, sizeof(buf));
 
 	if (size < 1) {
 		DRM_ERROR("Failed to read FRU serial number, ret:%d", size);