In the Linux kernel, the following vulnerability has been resolved: powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue When value < time_unit, the parameter of ilog2() will be zero and the return value is -1. u64(-1) is too large for shift exponent and then will trigger shift-out-of-bounds: shift exponent 18446744073709551615 is too large for 32-bit type 'int' Call Trace: rapl_compute_time_window_core rapl_write_data_raw set_time_window store_constraint_time_window_us

Metrics

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.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/139bbbd01114433b80fe59f5e1330615aadf9752 cve-icon cve-icon
https://git.kernel.org/stable/c/1d94af37565e4d3c26b0d63428e093a37d5b4c32 cve-icon cve-icon
https://git.kernel.org/stable/c/2d93540014387d1c73b9ccc4d7895320df66d01b cve-icon cve-icon
https://git.kernel.org/stable/c/3eb0ba70376f6ee40fa843fc9cee49269370b0b3 cve-icon cve-icon
https://git.kernel.org/stable/c/42f79dbb9514f726ff21df25f09cb0693b0b2445 cve-icon cve-icon
https://git.kernel.org/stable/c/49a6ffdaed60f0eb52c198fafebc05994e16e305 cve-icon cve-icon
https://git.kernel.org/stable/c/4ebba43384722adbd325baec3a12c572d94488eb cve-icon cve-icon
https://git.kernel.org/stable/c/6216b685b8f48ab7b721a6fd5acbf526b41c13e8 cve-icon cve-icon
https://git.kernel.org/stable/c/708b9abe1b4a2f050a483db4b7edfc446b13df1f cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091716-CVE-2022-50366-0f75@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50366 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50366 cve-icon
History

Thu, 18 Sep 2025 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 18 Sep 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

Wed, 17 Sep 2025 15:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue When value < time_unit, the parameter of ilog2() will be zero and the return value is -1. u64(-1) is too large for shift exponent and then will trigger shift-out-of-bounds: shift exponent 18446744073709551615 is too large for 32-bit type 'int' Call Trace: rapl_compute_time_window_core rapl_write_data_raw set_time_window store_constraint_time_window_us
Title powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-17T14:56:17.441Z

Updated: 2025-09-17T14:56:17.441Z

Reserved: 2025-09-17T14:53:06.995Z

Link: CVE-2022-50366

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-17T15:15:35.467

Modified: 2025-09-18T13:43:34.310

Link: CVE-2022-50366

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-17T00:00:00Z

Links: CVE-2022-50366 - Bugzilla