VulnerabilityPublished 18 Oct 2026

CVE-2026-98511: Linux kernel · drm/nouveau: don't bump pin count on failed re-pin in nouveau_bo_pin_locked()

Source GCVE Database

Authoritative record:CVE-2026-98511· Low

Not known to be exploited · fixed in a6e755acf85793a7b4d29ba27b5421af1087263f : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity

Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in a6e755acf85793a7b4d29ba27b5421af1087263f, 9924c1d64405be8d10b906368dfb1cfe0d0c6bf0, 189ffc7b6cad6390c0695031cb6c7c63472981e8 +4

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-g9v8-hx8g-hw7q

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < a6e755acf85793a7b4d29ba27b5421af1087263f	Fixed in a6e755acf85793a7b4d29ba27b5421af1087263f
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < 9924c1d64405be8d10b906368dfb1cfe0d0c6bf0	Fixed in 9924c1d64405be8d10b906368dfb1cfe0d0c6bf0
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < 189ffc7b6cad6390c0695031cb6c7c63472981e8	Fixed in 189ffc7b6cad6390c0695031cb6c7c63472981e8
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < 73c7093e6cc1e6b181a79e16eccc4b8d4f34d8ee	Fixed in 73c7093e6cc1e6b181a79e16eccc4b8d4f34d8ee
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < 19f5a5839b308697824ff46e6213a2b4cb677771	Fixed in 19f5a5839b308697824ff46e6213a2b4cb677771
LinuxLinux	Affected ≥ ad76b3f7c7a0836e74ac0e316e03988ef3c43564, < 6a6870d3077faa501ca97760057ddca22b68418d	Fixed in 6a6870d3077faa501ca97760057ddca22b68418d

AI-suggested

A fix has been applied to the Linux kernel to correct the pin count handling in nouveau_bo_pin_locked(). Users should update to a kernel version that includes this fix. Since this is a kernel-level fix, applying the official kernel update is the recommended remediation.

Description

A vulnerability in the Linux kernel's nouveau DRM driver was resolved that involved incorrect handling of pin counts when a re-pin operation failed. Specifically, the function nouveau_bo_pin_locked() would increment the pin count even when the re-pin failed due to incompatible memory domains, leading to a mismatch in pin/unpin operations and triggering warnings in the kernel. This issue was discovered through fuzz testing and could cause kernel warnings related to resource management.

References

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