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accel/ivpu: Limit FW version string length

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Limit FW version string, when parsing FW binary, to 256 bytes and
always add NULL-terminate it.

Reviewed-by: Karol Wachowski <karol.wachowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930195322.461209-7-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
This commit is contained in:
Jacek Lawrynowicz 2024-09-30 21:52:57 +02:00
parent 4bc988b470
commit 990b1e3d15
2 changed files with 9 additions and 4 deletions
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7
drivers/accel/ivpu/ivpu_fw.c
View File

@ -25,7 +25,6 @@
#define FW_SHAVE_NN_MAX_SIZE SZ_2M
#define FW_RUNTIME_MIN_ADDR (FW_GLOBAL_MEM_START)
#define FW_RUNTIME_MAX_ADDR (FW_GLOBAL_MEM_END - FW_SHARED_MEM_SIZE)
#define FW_VERSION_HEADER_SIZE SZ_4K
#define FW_FILE_IMAGE_OFFSET (VPU_FW_HEADER_SIZE + FW_VERSION_HEADER_SIZE)
#define WATCHDOG_MSS_REDIRECT 32
@ -191,8 +190,10 @@ static int ivpu_fw_parse(struct ivpu_device *vdev)
ivpu_dbg(vdev, FW_BOOT, "Header version: 0x%x, format 0x%x\n",
fw_hdr->header_version, fw_hdr->image_format);
ivpu_info(vdev, "Firmware: %s, version: %s", fw->name,
(const char *)fw_hdr + VPU_FW_HEADER_SIZE);
if (!scnprintf(fw->version, sizeof(fw->version), "%s", fw->file->data + VPU_FW_HEADER_SIZE))
ivpu_warn(vdev, "Missing firmware version\n");
ivpu_info(vdev, "Firmware: %s, version: %s\n", fw->name, fw->version);
if (IVPU_FW_CHECK_API_COMPAT(vdev, fw_hdr, BOOT, 3))
return -EINVAL;

6
drivers/accel/ivpu/ivpu_fw.h
View File

@ -1,11 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2020-2023 Intel Corporation
* Copyright (C) 2020-2024 Intel Corporation
*/
#ifndef __IVPU_FW_H__
#define __IVPU_FW_H__
#define FW_VERSION_HEADER_SIZE SZ_4K
#define FW_VERSION_STR_SIZE SZ_256
struct ivpu_device;
struct ivpu_bo;
struct vpu_boot_params;
@ -13,6 +16,7 @@ struct vpu_boot_params;
struct ivpu_fw_info {
const struct firmware *file;
const char *name;
char version[FW_VERSION_STR_SIZE];
struct ivpu_bo *mem;
struct ivpu_bo *mem_shave_nn;
struct ivpu_bo *mem_log_crit;