Vulnerability-Lookup

FKIE_CVE-2025-39951

Vulnerability from fkie_nvd - Published: 2025-10-04 08:15 - Updated: 2026-01-23 20:03

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: um: virtio_uml: Fix use-after-free after put_device in probe When register_virtio_device() fails in virtio_uml_probe(), the code sets vu_dev->registered = 1 even though the device was not successfully registered. This can lead to use-after-free or other issues.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17

JSON

To clipboard

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          "confidentialityImpact": "HIGH",
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}

CVE-2025-39951 (GCVE-0-2025-39951)

Vulnerability from cvelistv5 – Published: 2025-10-04 07:31 – Updated: 2025-10-04 07:37

Title

um: virtio_uml: Fix use-after-free after put_device in probe

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/14c231959a16ca41b…
	https://git.kernel.org/stable/c/5e94e44c9cb30d7a3…
	https://git.kernel.org/stable/c/aaf900a83508c8cd5…
	https://git.kernel.org/stable/c/4f364023ddcfe83f7…
	https://git.kernel.org/stable/c/00e98b5a69034b251…
	https://git.kernel.org/stable/c/c2ff91255e0157b35…
	https://git.kernel.org/stable/c/7ebf70cf181651fe3…

Impacted products

Vendor

Product

Version

Linux

Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < 14c231959a16ca41bfdcaede72483362a8c645d7 (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < 5e94e44c9cb30d7a383d8ac227f24a8c9326b770 (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < aaf900a83508c8cd5cdf765e7749f9076196ec7f (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < 4f364023ddcfe83f7073b973a9cb98584b7f2a46 (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < 00e98b5a69034b251bb36dc6e7123d7648e218e4 (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < c2ff91255e0157b356cff115d8dc3eeb5162edf2 (git)
Affected: 04e5b1fb01834a602acaae2276b67a783a8c6159 , < 7ebf70cf181651fe3f2e44e95e7e5073d594c9c0 (git)

Linux

Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.245 , ≤ 5.10.* (semver)
Unaffected: 5.15.194 , ≤ 5.15.* (semver)
Unaffected: 6.1.154 , ≤ 6.1.* (semver)
Unaffected: 6.6.108 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.16.9 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "programFiles": [
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-39951

CVE-2025-39951 (GCVE-0-2025-39951)

Tags

Sightings

Nomenclature