In the Linux kernel, the following vulnerability has been resolved:
hugetlbfs: release subpool on fill_super failure
hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size mount options are specified. hugepage_new_subpool() may also reserve huge pages for min_size.
If root dentry creation fails after the subpool is created, the failure path frees the subpool with kfree(). This bypasses hugepage_put_subpool() and can leave min_size reservations charged.
Use hugepage_put_subpool() on the failure path, matching the normal put_super path.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.15.221-157.262Upgrade kernel-livepatch-5.10.270-271.1109Upgrade kernel-tools-develUpgrade bpftoolUpgrade kernelUpgrade python-perfUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade kernel-develUpgrade perfUpgrade bpftool-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade bpftoolUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-modules-extra-commonUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade python3-perf-debuginfoUpgrade python3-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-modules-extraUpgrade perfUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-6.1.188-233.385 | Oct 13, 2026 | Sep 17, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Sep 30, 2026 | Sep 17, 2026 |
| Redhat_linux | — | No solution exists | Oct 7, 2026 | Sep 17, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 30, 2026 | Sep 17, 2026 |
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