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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
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Sep 19, 2025 | Sep 19, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 17, 2025 |
| Ubuntu | — | Upgrade linuxUpgrade linux-awsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-ibm-5.4Upgrade linux-bluefieldUpgrade linux-gkeUpgrade linux-raspi-5.4Upgrade linux-raspiUpgrade linux-riscv-5.15Upgrade linux-aws-5.4Upgrade linux-lowlatencyUpgrade linux-fipsUpgrade linux-oracle-5.4Upgrade linux-gcpUpgrade linux-aws-hweUpgrade linux-aws-5.15Upgrade linux-intel-iotgUpgrade linux-azure-5.15Upgrade linux-ibmUpgrade linux-kvmUpgrade linux-oracleUpgrade linux-gcp-5.15Upgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-nvidiaUpgrade linux-azure-fdeUpgrade linux-azure-fipsUpgrade linux-azure-4.15Upgrade linux-azure-5.4Upgrade linux-iotUpgrade linux-xilinx-zynqmpUpgrade linux-gcp-fipsUpgrade linux-realtimeUpgrade linux-hwe-5.4Upgrade linux-azure-fde-5.15Upgrade linux-gkeopUpgrade linux-intel-iotg-5.15Upgrade linux-gcp-5.4Upgrade linux-hweUpgrade linux-gcp-4.15Upgrade linux-hwe-5.15Upgrade linux-aws-fips | Sep 26, 2025 | Sep 17, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Sep 17, 2025 |
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