CVE-2026-43382 (GCVE-0-2026-43382)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-05-08 14:21
VLAI?
Title
batman-adv: Avoid double-rtnl_lock ELP metric worker
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnl_lock ELP metric worker batadv_v_elp_get_throughput() might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via cancel_delayed_work_sync() in batadv_v_elp_iface_disable(). In this case, an rtnl_lock() would cause a deadlock. To avoid this, rtnl_trylock() was used in this function to skip the retrieval of the ethtool information in case the RTNL lock was already held. But for cfg80211 interfaces, batadv_get_real_netdev() was called - which also uses rtnl_lock(). The approach for __ethtool_get_link_ksettings() must also be used instead and the lockless version __batadv_get_real_netdev() has to be called.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a0019971f340ae02ba54cf1861f72da7e03e6b66 , < 4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b (git)
Affected: 3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6 , < 192f40ad8a7dac58dae9199a065dbf7e6e67b75b (git)
Affected: 781a06fd265a8151f7601122d9c2e985663828ff , < fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca (git)
Affected: a7aa2317285806640c844acd4cd2cd768e395264 , < f3ca45673dab0514a887231de6f3243a699d5bfd (git)
Affected: 0fdc3c166ac17b26014313fa2b93696354511b24 , < b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77 (git)
Affected: 8c8ecc98f5c65947b0070a24bac11e12e47cc65d , < 2ab9f2531d37775cd79228c1f5d80e6bd08d11d3 (git)
Affected: 8c8ecc98f5c65947b0070a24bac11e12e47cc65d , < 77808fe7d03ad0062840b95f431869a8b3d88b24 (git)
Affected: 8c8ecc98f5c65947b0070a24bac11e12e47cc65d , < cfc83a3c71517b59c1047db57da31e26a9dc2f33 (git)
Affected: 1c334629176c2d644befc31a20d4bf75542f7631 (git)
Affected: af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e (git)
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    Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.19 , ≤ 6.18.* (semver)
Unaffected: 6.19.9 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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      "providerMetadata": {
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  }
}


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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.
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  • 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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