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

CVE-2026-98779: drm/amdgpu: fix ACP MFD device leak on init failure

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 2b9a53940a2bc063ea4cd09ee49220a503a0170c, 385ad314f1c096aae71fff516214bb312a6047fb, 587469076e4ffb617f7ad1a0c4a13072a3e87113; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 2b9a53940a2bc063ea4cd09ee49220a503a0170c, 385ad314f1c096aae71fff516214bb312a6047fb, 587469076e4ffb617f7ad1a0c4a13072a3e87113; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes 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/amdgpu: fix ACP MFD device leak on init failure acp_hw_init() registers ACP child devices with mfd_add_devices() before attaching them to the ACP power domain and initializing the hardware. If attaching a child to the power domain fails, or if the ACP reset or clock enable operation times out, the failure path frees only the source cell, resource, and platform-data allocations. The child platform devices already registered by mfd_add_devices() remain registered and are never released. Remove the children from the power domain and unregister the MFD devices on failures that occur after mfd_add_devices() succeeds. Keep mfd_add_devices() failures on the existing cleanup path since the MFD core already rolls back partially registered children itself. The issue was identified by a static analysis tool I developed and confirmed by manual review. (cherry picked from commit 63da68d6a2279ec945581c990c5a59a5ae8b5560)

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 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%

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  • 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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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

    • 4.6affected
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before 385ad314f1c096aae71fff516214bb312a6047fbaffected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before 7b7f770f48be77ce38e93216983dcdf1ea3a42baaffected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before 65ef6645982ccde16a7bc98d025eb80f5fab47f6affected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before d700c26ed64bd3c26e4aa7679b9d5f3333c3747aaffected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before 2b9a53940a2bc063ea4cd09ee49220a503a0170caffected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before 587469076e4ffb617f7ad1a0c4a13072a3e87113affected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before abf854513bc19e6e24d45353ac99ec5627ee0accaffected · git
    • 25030321ba2860c56651429a4f28d94a6483d952 and later · before f0013046151b7467e62c471c1c83d63ea255799caffected · git
    • before 4.6not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98777Oct 18, 2026 · binder: fix leaked fd fixups on TF_UPDATE_TXN supersede
    0Monitor
  • ← EarlierCVE-2026-98778Oct 18, 2026 · binder: fix is_failure flag for superseded transaction cleanup
    0Monitor
  • Later →CVE-2026-98780Oct 18, 2026 · drm/amdgpu: fix IP instance memory leak on kobject add failure
    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 Linux2b9a53940a2bc063ea4cd09ee49220a503a0170cVendor (CNA)
Linux Linux385ad314f1c096aae71fff516214bb312a6047fbVendor (CNA)
Linux Linux587469076e4ffb617f7ad1a0c4a13072a3e87113Vendor (CNA)
Linux Linux65ef6645982ccde16a7bc98d025eb80f5fab47f6Vendor (CNA)
Linux Linux7b7f770f48be77ce38e93216983dcdf1ea3a42baVendor (CNA)
Linux Linuxabf854513bc19e6e24d45353ac99ec5627ee0accVendor (CNA)
Linux Linuxd700c26ed64bd3c26e4aa7679b9d5f3333c3747aVendor (CNA)
Linux Linuxf0013046151b7467e62c471c1c83d63ea255799cVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.159.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package 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. TodayNov 6, 2026+19 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 (7 more)

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

All records