VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

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

Source GCVE Database

Authoritative record:CVE-2026-98779

Not known to be exploited · fixed in f0013046151b7467e62c471c1c83d63ea255799c : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f0013046151b7467e62c471c1c83d63ea255799c, d700c26ed64bd3c26e4aa7679b9d5f3333c3747a, abf854513bc19e6e24d45353ac99ec5627ee0acc +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-7q7p-f6vv-qrwf

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 25030321ba2860c56651429a4f28d94a6483d952, < f0013046151b7467e62c471c1c83d63ea255799c	Fixed in f0013046151b7467e62c471c1c83d63ea255799c
LinuxLinux	Affected ≥ 25030321ba2860c56651429a4f28d94a6483d952, < d700c26ed64bd3c26e4aa7679b9d5f3333c3747a	Fixed in d700c26ed64bd3c26e4aa7679b9d5f3333c3747a
LinuxLinux	Affected ≥ 25030321ba2860c56651429a4f28d94a6483d952, < abf854513bc19e6e24d45353ac99ec5627ee0acc	Fixed in abf854513bc19e6e24d45353ac99ec5627ee0acc
LinuxLinux	Affected ≥ 25030321ba2860c56651429a4f28d94a6483d952, < 587469076e4ffb617f7ad1a0c4a13072a3e87113	Fixed in 587469076e4ffb617f7ad1a0c4a13072a3e87113
LinuxLinux	Affected ≥ 25030321ba2860c56651429a4f28d94a6483d952, < 2b9a53940a2bc063ea4cd09ee49220a503a0170c	Fixed in 2b9a53940a2bc063ea4cd09ee49220a503a0170c
LinuxLinux	Affected =4.6	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to properly unregister ACP MFD child devices on initialization failure paths after mfd_add_devices() succeeds. Users should apply the official kernel update that includes this fix. Since this is a kernel-level resource management issue, updating to a patched kernel version is the recommended remediation.

Description

A vulnerability in the Linux kernel's drm/amdgpu driver caused ACP MFD child devices to remain registered and not released if initialization failed after device registration. This device leak occurs when attaching a child device to the ACP power domain fails or when ACP reset or clock enable operations time out. The issue has been fixed by ensuring that child devices are properly unregistered and removed from the power domain upon such failures.

References

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