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
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 42f79dbb9514f726ff21df25f09cb0693b0b2445; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 3eb0ba70376f6ee40fa843fc9cee49269370b0b3; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 4ebba43384722adbd325baec3a12c572d94488eb; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 49a6ffdaed60f0eb52c198fafebc05994e16e305; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 708b9abe1b4a2f050a483db4b7edfc446b13df1f; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 139bbbd01114433b80fe59f5e1330615aadf9752; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 6216b685b8f48ab7b721a6fd5acbf526b41c13e8; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 1d94af37565e4d3c26b0d63428e093a37d5b4c32; >= 2d281d8196e38dd3a4ee9af26621ddde8329f269, < 2d93540014387d1c73b9ccc4d7895320df66d01b |
| Linux | Linux | 3.13 |
References
- https://git.kernel.org/stable/c/139bbbd01114433b80fe59f5e1330615aadf9752Patch
- https://git.kernel.org/stable/c/1d94af37565e4d3c26b0d63428e093a37d5b4c32Patch
- https://git.kernel.org/stable/c/2d93540014387d1c73b9ccc4d7895320df66d01bPatch
- https://git.kernel.org/stable/c/3eb0ba70376f6ee40fa843fc9cee49269370b0b3Patch
- https://git.kernel.org/stable/c/42f79dbb9514f726ff21df25f09cb0693b0b2445Patch
- https://git.kernel.org/stable/c/49a6ffdaed60f0eb52c198fafebc05994e16e305Patch
- https://git.kernel.org/stable/c/4ebba43384722adbd325baec3a12c572d94488ebPatch
- https://git.kernel.org/stable/c/6216b685b8f48ab7b721a6fd5acbf526b41c13e8Patch
- https://git.kernel.org/stable/c/708b9abe1b4a2f050a483db4b7edfc446b13df1fPatch
Timeline
- Published
- Sep 17, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified