diff options
Diffstat (limited to 'drivers/misc/habanalabs/common/firmware_if.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/firmware_if.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c index f70302cdab1b..f52bc690dfc5 100644 --- a/drivers/misc/habanalabs/common/firmware_if.c +++ b/drivers/misc/habanalabs/common/firmware_if.c @@ -13,6 +13,7 @@ #include <linux/io-64-nonatomic-lo-hi.h> #include <linux/slab.h> +#define FW_FILE_MAX_SIZE 0x1400000 /* maximum size of 20MB */ /** * hl_fw_load_fw_to_device() - Load F/W code to device's memory. * @@ -48,6 +49,14 @@ int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name, dev_dbg(hdev->dev, "%s firmware size == %zu\n", fw_name, fw_size); + if (fw_size > FW_FILE_MAX_SIZE) { + dev_err(hdev->dev, + "FW file size %zu exceeds maximum of %u bytes\n", + fw_size, FW_FILE_MAX_SIZE); + rc = -EINVAL; + goto out; + } + fw_data = (const u64 *) fw->data; memcpy_toio(dst, fw_data, fw_size); |