CVE-2026-90283
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.
Affected versions
Linux kernel versions
4.1
and later are affected. Fixed in
5.10.270,
5.15.221,
6.1.188,
6.6.157,
6.12.110,
6.18.52,
7.2.6,
7.3-rc1
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-90283?
CVE-2026-90283 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.1 onward and has been patched in 5.10.270, 5.15.221, 6.1.188 and others. CVE-2026-90283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-90283?
Yes. CVE-2026-90283 has been patched. Fixed versions include 5.10.270, 5.15.221, 6.1.188 and others. If you are running Linux kernel 4.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-90283 actively exploited?
No. CVE-2026-90283 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.