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NVD / CVE Program· CNA Linux

CVE-2026-74644: mm/damon/ops-common: putback folios on invalid migrate nid

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 460181e4bb47a57776c64f0832c2096de8878cb3, 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a, 6.12.105.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 460181e4bb47a57776c64f0832c2096de8878cb3, 5deb65c34e682e7c5f5df417a70e223e8fcc5f5a, 6.12.105 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

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: putback folios on invalid migrate nid damon_pa_migrate() and damos_va_migrate() isolate folios into a local list and then call damon_migrate_pages(). When target_nid is invalid (including the scheme default NUMA_NO_NODE / -1), damon_migrate_pages() returns early without putting the folios back to the LRU. Callers then discard the list head while those folios remain isolated with an extra reference taken by folio_isolate_lru(). The pages stay off the LRU for as long as the mapping exists (anon active+inactive counts drop while RSS does not), and the leftover references can pin the pages after the mapping is gone. Put the folios back on the invalid-nid path so ignored migration requests still return them to the LRU.

—No exploit Fix available
Published
Aug 22, 2026
Updated
Oct 14, 2026
EPSS
0.1% · 6th 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 · 0.1%

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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

    • 9d0c2d15aff96746f99a7c97221bb8ce5b62db19, 6.17affected
    • 7c303fa1f311aadc17fa82b7bbf776412adf45de and later · before 7001c0a1bc9018cd5b2b72ebebb216d738b2ec81affected · git
    • 7e6c3130690a01076efdf45aa02ba5d5c16849a0 and later · before 460181e4bb47a57776c64f0832c2096de8878cb3affected · git
    • 7e6c3130690a01076efdf45aa02ba5d5c16849a0 and later · before cfef454862b7d2776e0955b873dd59af6b47cfcbaffected · git
    • 7e6c3130690a01076efdf45aa02ba5d5c16849a0 and later · before 5deb65c34e682e7c5f5df417a70e223e8fcc5f5aaffected · git
    • 6.12.44 and later · before 6.12.105affected · semver
    • 6.16.4 and later · before 6.17affected · semver
    • before 6.17not affected · semver
    • 6.12.105 and later · up to and including 6.12.*not affected · semver
    • 6.18.45 and later · up to and including 6.18.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.9-17.1.9-1

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
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-74642Aug 22, 2026 · ALSA: usb: Fix UAF at delayed release of MIDI2 EPs
    0Monitor
  • ← EarlierCVE-2026-74643Aug 22, 2026 · samples/damon/mtier: error out for zero quota goal target values
    0Monitor
  • Later →CVE-2026-74645Aug 22, 2026 · mm/damon/lru_sort: error out for >10000 active_mem_bp
    0Monitor

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 Linux460181e4bb47a57776c64f0832c2096de8878cb3Vendor (CNA)
Linux Linux5deb65c34e682e7c5f5df417a70e223e8fcc5f5aVendor (CNA)
Linux Linux6.12.105Vendor (CNA)
Linux Linux6.17Vendor (CNA)
Linux Linux7001c0a1bc9018cd5b2b72ebebb216d738b2ec81Vendor (CNA)
Linux Linuxcfef454862b7d2776e0955b873dd59af6b47cfcbVendor (CNA)
debian:linux6.12.105-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.107-1~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

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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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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 (3 more)

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

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