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CVE-2025-39872

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CVE-2025-39872

Published: Sep 23, 2025

Modified: May 23, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
ef964411c8ca775967355d855abc56aeaca3c867 - < 9433ba79c2ec3ec7c9a711748701549339c3438c
affected
9c10dd8eed74de9e8adeb820939f8745cd566d4a - < 68a6729afd3e8e9a2a32538642ce92b96ccf9b1d
affected
9c10dd8eed74de9e8adeb820939f8745cd566d4a - < 847748fc66d08a89135a74e29362a66ba4e3ab15
affected
6.12.63 - < 6.12.64

Linux

Linux

affected
6.14
unaffected
0 - < 6.14
unaffected
6.12.64 - <= 6.12.*
unaffected
6.16.8 - <= 6.16.*
unaffected
6.17 - <= *

References

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