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CVE-2026-72484· NVD / CVE Program· CNA Linux

staging: most: video: avoid double free on video register failure

In the Linux kernel, the following vulnerability has been resolved: staging: most: video: avoid double free on video register failure comp_register_videodev() allocates a video_device with video_device_alloc() and releases it if video_register_device() fails. This can double free the video_device when __video_register_device() reaches device_register() and that call fails: video_register_device() -> __video_register_device() -> device_register() fails -> put_device(&vdev->dev) -> v4l2_device_release() -> vdev->release(vdev) -> video_device_release(vdev) comp_register_videodev() -> video_device_release(mdev->vdev) Use video_device_release_empty() while registering the device so that registration failure paths do not free mdev->vdev through vdev->release(). comp_register_videodev() then releases mdev->vdev exactly once on failure. Restore video_device_release() after successful registration so the registered device keeps its normal lifetime handling. This issue was found by a static analysis tool I am developing.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.2% · 11th percentile
CWE
—
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Report tools

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Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Noroxi analysis

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Affected systems

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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

    • 4.9affected
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 009d58b73500d0b49f6ae3833f8afcb0ebd9ddbbaffected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 430ad4ea06a0767fb44a08e2212ceb3a996607eeaffected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 46ea51f5b2ee1a3b40c05b7c750cbc5cabe94062affected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 4928096212b78262dbbeab3b3abf2352278ce22daffected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 80ed79787da3311f76b4d71d0ce7ab992a9e134daffected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 43078449ad6236d839e4d707954d2e36b10a6706affected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 7fc162453cfb7b8e93edb16287a84ba0130cac38affected · git
    • eab231c0398a91fbd294672bfe9e0ff45b368246 and later · before 7cb1c5b32a2bfde961fff8d5204526b609bcb30aaffected · git
    • before 4.9not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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    40Plan

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 Linux009d58b73500d0b49f6ae3833f8afcb0ebd9ddbbVendor (CNA)
Linux Linux43078449ad6236d839e4d707954d2e36b10a6706Vendor (CNA)
Linux Linux430ad4ea06a0767fb44a08e2212ceb3a996607eeVendor (CNA)
Linux Linux46ea51f5b2ee1a3b40c05b7c750cbc5cabe94062Vendor (CNA)
Linux Linux4928096212b78262dbbeab3b3abf2352278ce22dVendor (CNA)
Linux Linux7cb1c5b32a2bfde961fff8d5204526b609bcb30aVendor (CNA)
Linux Linux7fc162453cfb7b8e93edb16287a84ba0130cac38Vendor (CNA)
Linux Linux80ed79787da3311f76b4d71d0ce7ab992a9e134dVendor (CNA)
debian:linux6.1.180-1 · 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

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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.

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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

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Change log

  1. Fix✗ → ✓

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References

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

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