In the Linux kernel, the following vulnerability has been resolved:
mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock.
This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems.
Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.
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 bpftoolUpgrade kernel-livepatch-5.15.79-51.138Upgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade perfUpgrade python-perfUpgrade kernel-livepatch-5.10.155-138.670Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-4.14.299-223.520Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade bpftool-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Sep 17, 2025 | Sep 17, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 15, 2025 |
| Ubuntu | — | Upgrade linux-oracleUpgrade linux-gcp-5.4Upgrade linux-hwe-5.4Upgrade linux-ibm-5.4Upgrade linux-raspiUpgrade linux-hwe-5.15Upgrade linux-ibmUpgrade linux-xilinx-zynqmpUpgrade linux-gkeopUpgrade linux-nvidiaUpgrade linux-gkeUpgrade linux-aws-5.4Upgrade linux-lowlatencyUpgrade linux-azure-5.15Upgrade linux-iotUpgrade linux-aws-hweUpgrade linux-oracle-5.4Upgrade linux-oracle-5.15Upgrade linuxUpgrade linux-azure-fipsUpgrade linux-aws-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-gcp-fipsUpgrade linux-azureUpgrade linux-azure-4.15Upgrade linux-gcpUpgrade linux-raspi-5.4Upgrade linux-riscv-5.15Upgrade linux-intel-iotgUpgrade linux-lowlatency-hwe-5.15Upgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-gcp-5.15Upgrade linux-gcp-4.15Upgrade linux-bluefieldUpgrade linux-azure-5.4Upgrade linux-kvmUpgrade linux-hweUpgrade linux-realtimeUpgrade linux-fips | Sep 19, 2025 | Sep 16, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Sep 15, 2025 |
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