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NVD / CVE Program· CNA Linux

CVE-2026-80963: dm-stats: fix a crash if allocation of per-cpu data fails

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75, 389a50d094e13724f5f45e6d9d6ef734c98ba291, 564d17573ef643c13cf6e9015124a205fa65e704.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75, 389a50d094e13724f5f45e6d9d6ef734c98ba291, 564d17573ef643c13cf6e9015124a205fa65e704 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: dm-stats: fix a crash if allocation of per-cpu data fails If "dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))" fails, the code jumps to the "out" label and calls dm_stat_free. dm_stat_free does "for_each_possible_cpu(cpu) { dm_kvfree(s->stat_percpu[cpu][0].histogram, s->histogram_alloc_size);", which crashes with NULL pointer dereference if s->stat_percpu[cpu] is NULL. This commit fixes the bug by testing s->stat_percpu[cpu] for NULL before using it.

—No exploit Fix available
Published
Sep 11, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th 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%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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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

    • 3.12affected
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before e45f0b0c41139810ff395ba2f3cfca1460a5b8a6affected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before 9805d87d0e26c68ee69da3928e665214d2e2851aaffected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before 564d17573ef643c13cf6e9015124a205fa65e704affected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before 389a50d094e13724f5f45e6d9d6ef734c98ba291affected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before c3f211b7a277dd404b4e7d23095be964b5b46a27affected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before 74210fa072960a18bb0eead487585452af722e4faffected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75affected · git
    • fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and later · before cc87e26d9cce22061dc21e51e11afef29dbbc36aaffected · git
    • before 3.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-80961Sep 11, 2026 · dm-pcache: validate kset key_num and intra-segment bounds
    31Monitor
  • ← EarlierCVE-2026-80962Sep 11, 2026 · dm-pcache: validate geometry fields from on-disk cache_info
    31Monitor
  • Later →CVE-2026-80964Sep 11, 2026 · ALSA: virmidi: Check card index validity at probe
    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 Linux0c8f7870ed3ebd512f090d7714cc2c556b9e5c75Vendor (CNA)
Linux Linux389a50d094e13724f5f45e6d9d6ef734c98ba291Vendor (CNA)
Linux Linux564d17573ef643c13cf6e9015124a205fa65e704Vendor (CNA)
Linux Linux74210fa072960a18bb0eead487585452af722e4fVendor (CNA)
Linux Linux9805d87d0e26c68ee69da3928e665214d2e2851aVendor (CNA)
Linux Linuxc3f211b7a277dd404b4e7d23095be964b5b46a27Vendor (CNA)
Linux Linuxcc87e26d9cce22061dc21e51e11afef29dbbc36aVendor (CNA)
Linux Linuxe45f0b0c41139810ff395ba2f3cfca1460a5b8a6Vendor (CNA)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~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).

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✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

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

All records