VulnerabilityPublished 15 Aug 2026Updated 6 Nov 2026

CVE-2026-72015: Linux kernel · fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f7628eea9212e185a09df3aea603ca8580b8678d : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f7628eea9212e185a09df3aea603ca8580b8678d, bab7dbba38ed3011972c3d9be2dcdca7575cbe32, b9f089723aee892efc77c349ae47a6b452b293c4 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < f7628eea9212e185a09df3aea603ca8580b8678d	Fixed in f7628eea9212e185a09df3aea603ca8580b8678d
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < bab7dbba38ed3011972c3d9be2dcdca7575cbe32	Fixed in bab7dbba38ed3011972c3d9be2dcdca7575cbe32
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < b9f089723aee892efc77c349ae47a6b452b293c4	Fixed in b9f089723aee892efc77c349ae47a6b452b293c4
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < b2fe9e140aa94b2816aab7ebc692b543e418f5e3	Fixed in b2fe9e140aa94b2816aab7ebc692b543e418f5e3
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < ad12e70d7dc3c94a05efc61d1e4861078e0e162b	Fixed in ad12e70d7dc3c94a05efc61d1e4861078e0e162b
LinuxLinux	Affected ≥ e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0, < 9168176894332312c12ef052e784735dbf4ffe3f	Fixed in 9168176894332312c12ef052e784735dbf4ffe3f

Description

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.

References

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