VulnerabilityPublished 4 Sep 2026Updated 30 Oct 2026

CVE-2026-80883: Linux kernel · drm/tegra: gr2d/gr3d: Initialize address register map before HOST1X client is registered

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in c4ef5ba1131346159e31f4ef858525cf377380a6 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 12:49 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in c4ef5ba1131346159e31f4ef858525cf377380a6, 3055292b8eed69553b389a609197a241df47e68e, 40a2a91da02c434938f0ba53877984820800b5f0 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < c4ef5ba1131346159e31f4ef858525cf377380a6	Fixed in c4ef5ba1131346159e31f4ef858525cf377380a6
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < 3055292b8eed69553b389a609197a241df47e68e	Fixed in 3055292b8eed69553b389a609197a241df47e68e
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < 40a2a91da02c434938f0ba53877984820800b5f0	Fixed in 40a2a91da02c434938f0ba53877984820800b5f0
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < 6e22d5ad61cfa38aa53fab86a530113aff6a3619	Fixed in 6e22d5ad61cfa38aa53fab86a530113aff6a3619
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < 5db37fd7710e74bc4df48bddab8f571d0bfc6769	Fixed in 5db37fd7710e74bc4df48bddab8f571d0bfc6769
LinuxLinux	Affected ≥ d43f81cbaf43531a977e8b4c4427f19acf8a5061, < 3a5f1ac5658bae5200bb6a85312b5388bc26ca55	Fixed in 3a5f1ac5658bae5200bb6a85312b5388bc26ca55

Description

In the Linux kernel, the following vulnerability has been resolved: drm/tegra: gr2d/gr3d: Initialize address register map before HOST1X client is registered The host1x_client_register() function is called just prior to register map initialization loop, making the device available to userspace. This may result in userspace attempting to submits a job before the register map is initialized. Address this by moving register initialization before host1x client registration.

References

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