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

wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()

Don't dereference "sar_root" after it has been freed.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

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 0.00026.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
f965333e491e36adb0fa91e389fba8685b704fb6 affected < 3ed0b382cb36f6dac9f93b3a5533cfcd699409a5
f965333e491e36adb0fa91e389fba8685b704fb6 affected < e7de4b4979bd8d313ec837931dde936653ca82ea
Linux Linux affected
Version Status Constraints
6.0 affected —
0 unaffected < 6.0
6.0.3 unaffected ≤ 6.0.*
6.1 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3ed0b382cb36f6dac9f93b3a5533cfcd699409a5 cve-icon cve-icon
https://git.kernel.org/stable/c/e7de4b4979bd8d313ec837931dde936653ca82ea cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123045-CVE-2022-50852-978e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50852 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50852 cve-icon
History

Wed, 31 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Tue, 30 Dec 2025 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix use after free in mt7921_acpi_read() Don't dereference "sar_root" after it has been freed.
Title wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-30T12:15:28.444Z

Reserved: 2025-12-30T12:06:07.134Z

Link: CVE-2022-50852

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:15:59.907

Modified: 2025-12-31T20:43:05.160

Link: CVE-2022-50852

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2022-50852 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.