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CVE-2026-80888· NVD / CVE Program· CNA Linux

drm/vmwgfx: drop dma_buf reference on foreign-fd prime import

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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 1715901e7052cf90fbf04c8303e563a47e021278, 4df39eb99bb47d1f24d1952c23b21b10988356bf, 619c3cfa88e09603a13d918f754808db2dda7057; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1.

Low priority for now. Upgrade to Linux Linux 1715901e7052cf90fbf04c8303e563a47e021278, 4df39eb99bb47d1f24d1952c23b21b10988356bf, 619c3cfa88e09603a13d918f754808db2dda7057; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1 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/vmwgfx: drop dma_buf reference on foreign-fd prime import ttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's dma_buf->ops do not match the ttm_object_device's ops, but does so without releasing the reference acquired by dma_buf_get(). Any unprivileged renderD client passing a non-vmwgfx prime fd through the DRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per call and indefinitely pins the foreign exporter's GEM resources. Funnel the error path through the existing dma_buf_put() so the reference is always dropped.

—No exploit Fix available
Published
Sep 4, 2026
Updated
Sep 14, 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%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
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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

    • 3.13affected
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before 1715901e7052cf90fbf04c8303e563a47e021278affected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before c4fd91ee7228f56fbb4cf528757dc17ffefeb0eeaffected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before 619c3cfa88e09603a13d918f754808db2dda7057affected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before c1c22fca0a0896a452a7cb92422d67babd65b4beaffected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before a1e972fa94c3a8069e022c67b9d97c7aa7b05293affected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before a8434b145b1e467940334c58c00af241e9494c5faffected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before 4df39eb99bb47d1f24d1952c23b21b10988356bfaffected · git
    • 65981f7681abdf92b25942222b629b9c512d0705 and later · before f739416dc555fa205a785e5135d73fa39b26f35daffected · git
    • before 3.13not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

Same product

linux: all records

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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 Linux1715901e7052cf90fbf04c8303e563a47e021278Vendor (CNA)
Linux Linux4df39eb99bb47d1f24d1952c23b21b10988356bfVendor (CNA)
Linux Linux619c3cfa88e09603a13d918f754808db2dda7057Vendor (CNA)
Linux Linuxa1e972fa94c3a8069e022c67b9d97c7aa7b05293Vendor (CNA)
Linux Linuxa8434b145b1e467940334c58c00af241e9494c5fVendor (CNA)
Linux Linuxc1c22fca0a0896a452a7cb92422d67babd65b4beVendor (CNA)
Linux Linuxc4fd91ee7228f56fbb4cf528757dc17ffefeb0eeVendor (CNA)
Linux Linuxf739416dc555fa205a785e5135d73fa39b26f35dVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~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.

No dated events beyond publication.

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. Fix✗ → ✓

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References

Show all references (7 more)

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

All records