CVE-2026-46231batman-adv: bla: put backbone reference on failed claim hash insert
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% 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: bla: put backbone reference on failed claim hash insert When batadv_bla_add_claim() fails to insert a new claim into the hash, it leaked a reference to the backbone_gw for which the claim was intended. Call batadv_backbone_gw_put() on the error path to release the reference and avoid leaking the backbone_gw object.
Timeline
ID reserved
By Linux
- 15 days later
· 15 days later
Published
- 17 days later
· 17 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)
- 0.12% · top 98% of all CVEs (14 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 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 6c8b68a7ed667a63aa603ba4d3a7088be143007e
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 769f413d374ff2b6ff6d8d8c37b4c1178e6cdf14
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 2888c9a154123db0254ae4fb9bea570c7e1f2e06
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 65419eb4259a26a3cd3f56fa0e3b3c113bf8c256
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < fd0ca034c1e71ca7613cde9dd892836b2c2831bd
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < 7cccf4eb4f96d3c3af91a00b7a9caa652439542e
- affected 3db0decf1185357d6ab2256d0dede1ca9efda03d – < ba9d20ee9076dac32c371116bacbe72480eb356c
- affected 3fdd337ac0b277a1f40aa73b35283520f426e517
- affected 485eedfabc2aefac8f09f98a82ba1c1e3e202a6d
- affected 3.16.39 – < 3.17
- affected 4.4.217 – < 4.5
- affected 4.7
- unaffected < 4.7
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.90 – ≤ 6.12.*
- unaffected 6.18.32 – ≤ 6.18.*
- unaffected 7.0.9 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/6c8b68a7ed667a63aa603ba4d3a7088be143007e (opens in a new tab)
- https://git.kernel.org/stable/c/769f413d374ff2b6ff6d8d8c37b4c1178e6cdf14 (opens in a new tab)
- https://git.kernel.org/stable/c/2888c9a154123db0254ae4fb9bea570c7e1f2e06 (opens in a new tab)
- https://git.kernel.org/stable/c/65419eb4259a26a3cd3f56fa0e3b3c113bf8c256 (opens in a new tab)
- https://git.kernel.org/stable/c/fd0ca034c1e71ca7613cde9dd892836b2c2831bd (opens in a new tab)
- https://git.kernel.org/stable/c/0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0 (opens in a new tab)
- https://git.kernel.org/stable/c/7cccf4eb4f96d3c3af91a00b7a9caa652439542e (opens in a new tab)
- https://git.kernel.org/stable/c/ba9d20ee9076dac32c371116bacbe72480eb356c (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-2026-32858 (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-2026-46231)Record last updated .