CVE-2026-43382batman-adv: Avoid double-rtnl_lock ELP metric worker
- 5.5MediumCVSS base score
- 0.10%Exploitation in 30 daysEPSS · top 99% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 15 days later
· 15 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.10% · top 99% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected a0019971f340ae02ba54cf1861f72da7e03e6b66 – < 4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b
- affected 3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6 – < 192f40ad8a7dac58dae9199a065dbf7e6e67b75b
- affected 781a06fd265a8151f7601122d9c2e985663828ff – < fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca
- affected a7aa2317285806640c844acd4cd2cd768e395264 – < f3ca45673dab0514a887231de6f3243a699d5bfd
- affected 0fdc3c166ac17b26014313fa2b93696354511b24 – < b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77
- affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d – < 2ab9f2531d37775cd79228c1f5d80e6bd08d11d3
- affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d – < 77808fe7d03ad0062840b95f431869a8b3d88b24
- affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d – < cfc83a3c71517b59c1047db57da31e26a9dc2f33
- affected 1c334629176c2d644befc31a20d4bf75542f7631
- affected af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e
- affected 5.10.235 – < 5.10.253
- affected 5.15.179 – < 5.15.203
- affected 6.1.129 – < 6.1.167
- affected 6.6.79 – < 6.6.130
- affected 6.12.16 – < 6.12.78
- affected 5.4.291 – < 5.5
- affected 6.13.4 – < 6.14
- affected 6.14
- unaffected < 6.14
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.167 – ≤ 6.1.*
- unaffected 6.6.130 – ≤ 6.6.*
- unaffected 6.12.78 – ≤ 6.12.*
- unaffected 6.18.19 – ≤ 6.18.*
- unaffected 6.19.9 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b (opens in a new tab)
- https://git.kernel.org/stable/c/192f40ad8a7dac58dae9199a065dbf7e6e67b75b (opens in a new tab)
- https://git.kernel.org/stable/c/fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca (opens in a new tab)
- https://git.kernel.org/stable/c/f3ca45673dab0514a887231de6f3243a699d5bfd (opens in a new tab)
- https://git.kernel.org/stable/c/b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77 (opens in a new tab)
- https://git.kernel.org/stable/c/2ab9f2531d37775cd79228c1f5d80e6bd08d11d3 (opens in a new tab)
- https://git.kernel.org/stable/c/77808fe7d03ad0062840b95f431869a8b3d88b24 (opens in a new tab)
- https://git.kernel.org/stable/c/cfc83a3c71517b59c1047db57da31e26a9dc2f33 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-28688 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-43382)Record last updated .