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THREAT OPS › Threat News › [NVD] CVE-2025-21823 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: batman-adv: Drop unmanaged ELP metric worker The ELP worker needs to calculate new metric values for all neighbors "reachable" over an interface. Some of the used metric sources require locks which might need t

[NVD] CVE-2025-21823 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: batman-adv: Drop unmanaged ELP metric worker The ELP worker needs to calculate new metric values for all neighbors "reachable" over an interface. Some of the used metric sources require locks which might need t

lownvdPublished 2025-02-27

CVE-2025-21823 CVSS: 7.8 HIGH Published: 2025-02-27T20:16:04.793

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: Drop unmanaged ELP metric worker

The ELP worker needs to calculate new metric values for all neighbors "reachable" over an interface. Some of the used metric sources require locks which might need to sleep. This sleep is incompatible with the RCU list

Indicators of compromise

CVE-2025-21823cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-21823