CVE-2026-72015
In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list A pseudo-locked group's RMID is freed when it is created. On unmount rmdir_all_sub() unconditionally frees all RMID of all groups, resulting in a double-free of the pseudo-locked group's RMID. The consequence of this is that the original free results in the pseudo-locked group's RMID being added to the rmid_free_lru linked list and the second free then attempts to add the same RMID entry to the rmid_free_lru again. Do not double-free a pseudo-locked group's RMID.
Affected versions
Linux kernel versions
4.19
and later are affected. Fixed in
6.6.148,
6.12.101,
6.18.40,
7.1.5,
7.2-rc3
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-72015?
CVE-2026-72015 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.19 onward and has been patched in 6.6.148, 6.12.101, 6.18.40 and others. CVE-2026-72015 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-2026-72015?
Yes. CVE-2026-72015 has been patched. Fixed versions include 6.6.148, 6.12.101, 6.18.40 and others. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72015 actively exploited?
No. CVE-2026-72015 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.