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CVE-2026-72015· NVD / CVE Program· CNA Linux

fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 52007bfdce5310e8c8a29849bfbfb188a1e50ca0, 52b769165f20b38092f28ce064b4b143471540a7, 9168176894332312c12ef052e784735dbf4ffe3f.

Low priority for now. Upgrade to Linux Linux 52007bfdce5310e8c8a29849bfbfb188a1e50ca0, 52b769165f20b38092f28ce064b4b143471540a7, 9168176894332312c12ef052e784735dbf4ffe3f or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

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.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 23, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.19affected
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before bab7dbba38ed3011972c3d9be2dcdca7575cbe32affected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before ad12e70d7dc3c94a05efc61d1e4861078e0e162baffected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before 52b769165f20b38092f28ce064b4b143471540a7affected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before 9168176894332312c12ef052e784735dbf4ffe3faffected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before b2fe9e140aa94b2816aab7ebc692b543e418f5e3affected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before 52007bfdce5310e8c8a29849bfbfb188a1e50ca0affected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before f7628eea9212e185a09df3aea603ca8580b8678daffected · git
    • e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 and later · before b9f089723aee892efc77c349ae47a6b452b293c4affected · git
    • before 4.19not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.5-17.1.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
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  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
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  • CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
    40Plan
  • CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
    40Plan
  • CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux52007bfdce5310e8c8a29849bfbfb188a1e50ca0Vendor (CNA)
Linux Linux52b769165f20b38092f28ce064b4b143471540a7Vendor (CNA)
Linux Linux9168176894332312c12ef052e784735dbf4ffe3fVendor (CNA)
Linux Linuxad12e70d7dc3c94a05efc61d1e4861078e0e162bVendor (CNA)
Linux Linuxb2fe9e140aa94b2816aab7ebc692b543e418f5e3Vendor (CNA)
Linux Linuxb9f089723aee892efc77c349ae47a6b452b293c4Vendor (CNA)
Linux Linuxbab7dbba38ed3011972c3d9be2dcdca7575cbe32Vendor (CNA)
Linux Linuxf7628eea9212e185a09df3aea603ca8580b8678dVendor (CNA)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records