CVE-2025-39872 (GCVE-0-2025-39872)

Vulnerability from cvelistv5 – Published: 2025-09-23 06:00 – Updated: 2026-01-08 09:50
VLAI?
Title
hsr: hold rcu and dev lock for hsr_get_port_ndev
Summary
In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller function.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ef964411c8ca775967355d855abc56aeaca3c867 , < 9433ba79c2ec3ec7c9a711748701549339c3438c (git)
Affected: 9c10dd8eed74de9e8adeb820939f8745cd566d4a , < 68a6729afd3e8e9a2a32538642ce92b96ccf9b1d (git)
Affected: 9c10dd8eed74de9e8adeb820939f8745cd566d4a , < 847748fc66d08a89135a74e29362a66ba4e3ab15 (git)
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    Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.16.8 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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Sightings

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  • 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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