FKIE_CVE-2026-72484
Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/staging/most/video/video.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "009d58b73500d0b49f6ae3833f8afcb0ebd9ddbb",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "430ad4ea06a0767fb44a08e2212ceb3a996607ee",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "46ea51f5b2ee1a3b40c05b7c750cbc5cabe94062",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "4928096212b78262dbbeab3b3abf2352278ce22d",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "80ed79787da3311f76b4d71d0ce7ab992a9e134d",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "43078449ad6236d839e4d707954d2e36b10a6706",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "7fc162453cfb7b8e93edb16287a84ba0130cac38",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
},
{
"lessThan": "7cb1c5b32a2bfde961fff8d5204526b609bcb30a",
"status": "affected",
"version": "eab231c0398a91fbd294672bfe9e0ff45b368246",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/staging/most/video/video.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.9"
},
{
"lessThan": "4.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: most: video: avoid double free on video register failure\n\ncomp_register_videodev() allocates a video_device with\nvideo_device_alloc() and releases it if video_register_device() fails.\n\nThis can double free the video_device when __video_register_device()\nreaches device_register() and that call fails:\n\n video_register_device()\n -\u003e __video_register_device()\n -\u003e device_register() fails\n -\u003e put_device(\u0026vdev-\u003edev)\n -\u003e v4l2_device_release()\n -\u003e vdev-\u003erelease(vdev)\n -\u003e video_device_release(vdev)\n\n comp_register_videodev()\n -\u003e video_device_release(mdev-\u003evdev)\n\nUse video_device_release_empty() while registering the device so that\nregistration failure paths do not free mdev-\u003evdev through vdev-\u003erelease().\ncomp_register_videodev() then releases mdev-\u003evdev exactly once on failure.\nRestore video_device_release() after successful registration so the\nregistered device keeps its normal lifetime handling.\n\nThis issue was found by a static analysis tool I am developing."
}
],
"id": "CVE-2026-72484",
"lastModified": "2026-08-17T06:19:16.603",
"metrics": {},
"published": "2026-08-15T06:22:22.647",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/009d58b73500d0b49f6ae3833f8afcb0ebd9ddbb"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/43078449ad6236d839e4d707954d2e36b10a6706"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/430ad4ea06a0767fb44a08e2212ceb3a996607ee"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/46ea51f5b2ee1a3b40c05b7c750cbc5cabe94062"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4928096212b78262dbbeab3b3abf2352278ce22d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7cb1c5b32a2bfde961fff8d5204526b609bcb30a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7fc162453cfb7b8e93edb16287a84ba0130cac38"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/80ed79787da3311f76b4d71d0ce7ab992a9e134d"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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