In the Linux kernel, the following vulnerability has been resolved:
x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails
In mce_threshold_create_device(), if threshold_create_bank() fails, the previously allocated threshold banks array @bp will be leaked because the call to mce_threshold_remove_device() will not free it.
This happens because mce_threshold_remove_device() fetches the pointer through the threshold_banks per-CPU variable but bp is written there only after the bank creation is successful, and not before, when threshold_create_bank() fails.
Add a helper which unwinds all the bank creation work previously done and pass into it the previously allocated threshold banks array for freeing.
[ bp: Massage. ]
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernelUpgrade kernel-livepatch-5.10.126-117.518Upgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade python-perfUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-livepatch-5.15.50-23.125Upgrade bpftoolUpgrade python-perf-debuginfo | May 22, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade bpftool | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade python3-perf | Jun 11, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-raspiUpgrade linux-hwe-5.15Upgrade linux-gcpUpgrade linux-intel-iotg-5.15Upgrade linux-riscv-5.15Upgrade linux-azureUpgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-gkeopUpgrade linux-oracle-5.15Upgrade linux-gkeUpgrade linux-ibmUpgrade linux-lowlatencyUpgrade linux-oracleUpgrade linux-azure-5.15Upgrade linux-kvmUpgrade linux | Mar 19, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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