In the Linux kernel, the following vulnerability has been resolved:

media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run

In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with
mtk_jpeg_job_timeout_work.

In mtk_jpeg_dec_device_run, if error happens in
mtk_jpeg_set_dec_dst, it will finally start the worker while
mark the job as finished by invoking v4l2_m2m_job_finish.

There are two methods to trigger the bug. If we remove the
module, it which will call mtk_jpeg_remove to make cleanup.
The possible sequence is as follows, which will cause a
use-after-free bug.

CPU0 CPU1
mtk_jpeg_dec_... |
start worker |
|mtk_jpeg_job_timeout_work
mtk_jpeg_remove |
v4l2_m2m_release |
kfree(m2m_dev); |
|
| v4l2_m2m_get_curr_priv
| m2m_dev->curr_ctx //use

If we close the file descriptor, which will call mtk_jpeg_release,
it will have a similar sequence.

Fix this bug by starting timeout worker only if started jpegdec worker
successfully. Then v4l2_m2m_job_finish will only be called in
either mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00016.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1b1036c60a37a30caf6759a90fe5ecd06ec35590 cve-icon cve-icon
https://git.kernel.org/stable/c/206c857dd17d4d026de85866f1b5f0969f2a109e cve-icon cve-icon
https://git.kernel.org/stable/c/43872f44eee6c6781fea1348b38885d8e78face9 cve-icon cve-icon
https://git.kernel.org/stable/c/6e2f37022f0fc0893da4d85a0500c9d547fffd4c cve-icon cve-icon
https://git.kernel.org/stable/c/8254d54d00eb6cdb8367399c7f912eb8d354ecd7 cve-icon cve-icon
https://git.kernel.org/stable/c/9fec4db7fff54d9b0306a332bab31eac47eeb5f6 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html cve-icon
https://lore.kernel.org/linux-cve-announce/20240229155245.1571576-32-lee@kernel.org/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-52491 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-52491 cve-icon
History

Thu, 12 Dec 2024 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Mon, 04 Nov 2024 15:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:37:54.249Z

Reserved: 2024-02-20T12:30:33.303Z

Link: CVE-2023-52491

cve-icon Vulnrichment

Updated: 2024-08-02T23:03:19.948Z

cve-icon NVD

Status : Analyzed

Published: 2024-03-11T18:15:16.807

Modified: 2024-12-12T17:32:00.693

Link: CVE-2023-52491

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-29T00:00:00Z

Links: CVE-2023-52491 - Bugzilla

cve-icon OpenCVE Enrichment

No data.