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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98514: drm/nouveau: Fix gem reference leak in validate_init()

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 030e93fc91d55d9487b3b85fc0712bb795d77834, 3c80e069470cf73c357c9edb5ec5fba20e6f6a98, 4.18; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 030e93fc91d55d9487b3b85fc0712bb795d77834, 3c80e069470cf73c357c9edb5ec5fba20e6f6a98, 4.18; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: drm/nouveau: Fix gem reference leak in validate_init() On the ttm_bo_reserve() failure and "vma not found" error paths, the loop breaks without adding the looked-up object to any validate list, so the reference taken by drm_gem_object_lookup() is never released; validate_fini() only walks the spliced lists. Drop the reference before breaking out on both paths.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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%

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

  • when it enters CISA KEV
  • 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

    • bcc16811023394a5e61a20c107f1fa560a28b7c1, 4.18affected
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before af2f48c12365866abb327d75c21a13bbde84719caffected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 3c80e069470cf73c357c9edb5ec5fba20e6f6a98affected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 957619120c26d6727efd18504e6b488673d3900aaffected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 74485cdc343060fce08f8f3990da524d783e43a7affected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 8281930fc194ad448aaa5de8dd47fb6fb1cba327affected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 030e93fc91d55d9487b3b85fc0712bb795d77834affected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 9e13c398a23445baf38f0a59033dd9872a2bfe20affected · git
    • 19ca10d82e33bcfe92412c461fc3534ec1e14747 and later · before 5ea72f7b7139b123713a7983448f910bc4514d9eaffected · git
    • 4.17.12 and later · before 4.18affected · 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 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.9-17.2.9-1

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-2026-98512Oct 18, 2026 · drm/nouveau: RCU-free the scheduler-containing nouveau_sched
    28Monitor
  • ← EarlierCVE-2026-98513Oct 18, 2026 · drm/nouveau: Fix runtime PM leak in nouveau_connector_detect()
    0Monitor
  • Later →CVE-2026-98515Oct 18, 2026 · drm/nouveau: fix double-free in nvif_vmm_dtor
    31Monitor

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 Linux030e93fc91d55d9487b3b85fc0712bb795d77834Vendor (CNA)
Linux Linux3c80e069470cf73c357c9edb5ec5fba20e6f6a98Vendor (CNA)
Linux Linux4.18Vendor (CNA)
Linux Linux5ea72f7b7139b123713a7983448f910bc4514d9eVendor (CNA)
Linux Linux74485cdc343060fce08f8f3990da524d783e43a7Vendor (CNA)
Linux Linux8281930fc194ad448aaa5de8dd47fb6fb1cba327Vendor (CNA)
Linux Linux957619120c26d6727efd18504e6b488673d3900aVendor (CNA)
Linux Linux9e13c398a23445baf38f0a59033dd9872a2bfe20Vendor (CNA)
Linux Linuxaf2f48c12365866abb327d75c21a13bbde84719cVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayOct 31, 2026+13 d
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. Exploit maturity— → none
  2. 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