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. ]
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade bpftool-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.15.50-23.125Upgrade kernel-toolsUpgrade bpftoolUpgrade python-perfUpgrade perf-debuginfoUpgrade kernelUpgrade perfUpgrade kernel-tools-develUpgrade kernel-livepatch-5.10.126-117.518Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64 | May 22, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftool | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-tools | Jun 11, 2025 | Feb 26, 2025 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rtNo solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azureUpgrade linux-intel-iotg-5.15Upgrade linux-awsUpgrade linux-realtimeUpgrade linux-gcpUpgrade linux-aws-5.15Upgrade linux-intel-iotgUpgrade linux-raspiUpgrade linux-gcp-5.15Upgrade linux-azure-5.15Upgrade linux-gkeopUpgrade linux-oracle-5.15Upgrade linuxUpgrade linux-kvmUpgrade linux-lowlatencyUpgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-ibmUpgrade linux-gke | 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 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub