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

CVE-2026-98181: drm/gud: fix out-of-bounds write in gud_plane_atomic_check()

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 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3, 4153a9e008f2512bd3cf90a319436865847369b9, 59ced288fcba9e91bd38e61a972ad782c4edb7d0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3, 4153a9e008f2512bd3cf90a319436865847369b9, 59ced288fcba9e91bd38e61a972ad782c4edb7d0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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/gud: fix out-of-bounds write in gud_plane_atomic_check() The plane property loop uses req->properties[num_properties + i] as write index while simultaneously incrementing `num_properties` inside the loop. At iteration i, num_properties has also incremented by i, so the write is done at `initial_num_properties + 2*i`, skipping every other index and advancing by 2 per iteration. With just 2 connector and 32 plane properties the last write happens at index 64, one slot past the end of the 64-slot (indices 0–63) allocation. A USB device can trigger OOB by advertising the maximum number of properties. Fix by dropping the redundant `+ i`; num_properties is already the correct running index, as gud_connector_fill_properties() fills the preceding slots.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 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%

Get told when this record changes

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  • No public exploit code on record
  • 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

    • 5.13affected
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before ee04903fe6a098160d20dde4fc5af4cb42846735affected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before 4153a9e008f2512bd3cf90a319436865847369b9affected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before 5f5e565410b4987e9663f599f9ab0c350f8338d4affected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before 7e630edb22088df7aa0d55b02237a71e4c9a523daffected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3affected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before ea57100955c1c2a525ba1a98c18d9a05b25aeedbaffected · git
    • 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 and later · before 59ced288fcba9e91bd38e61a972ad782c4edb7d0affected · git
    • before 5.13not affected · semver
    • 5.15.222 and later · up to and including 5.15.*not 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 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1
openSUSE:Tumbleweedkernel-sourcebefore 7.2.10-1.17.2.10-1.1

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-2026-98179Oct 6, 2026 · drm/amdgpu: fix rmmio iounmap skipped on device removal
    0Monitor
  • ← EarlierCVE-2026-98180Oct 6, 2026 · drm/msm: RCU-free the scheduler-containing ring and VM objects
    28Monitor
  • Later →CVE-2026-98182Oct 6, 2026 · wifi: mac80211: refuse to make a monitor active when it has no queue
    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 Linux2c92af27ad23e2fbc0367b11a9027d36d94ef4b3Vendor (CNA)
Linux Linux4153a9e008f2512bd3cf90a319436865847369b9Vendor (CNA)
Linux Linux59ced288fcba9e91bd38e61a972ad782c4edb7d0Vendor (CNA)
Linux Linux5f5e565410b4987e9663f599f9ab0c350f8338d4Vendor (CNA)
Linux Linux7e630edb22088df7aa0d55b02237a71e4c9a523dVendor (CNA)
Linux Linuxea57100955c1c2a525ba1a98c18d9a05b25aeedbVendor (CNA)
Linux Linuxee04903fe6a098160d20dde4fc5af4cb42846735Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package registry (OSV)
opensuse:kernel-source7.2.10-1.1 · openSUSE:TumbleweedPackage 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 30, 2026+24 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).

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 (6 more)

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

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