# CVE-2022-50366: linux: In the Linux kernel, the following vulnerability has been resolved:  powercap: intel_rapl: fix UBSAN shift-out-of-bou...

CVE-2022-50366 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50366, released September 17, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-50366
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2025

## 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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.3-1 | [DEBIAN-CVE-2022-50366](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50366.md) | Sep 17, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.3-1 | [DEBIAN-CVE-2022-50366](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50366.md) | Sep 17, 2025 |
| Linux | linux Debian 14 | 6.0.3-1 | [DEBIAN-CVE-2022-50366](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50366.md) | Sep 17, 2025 |

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