CVE-2026-46212
batman-adv: bla: prevent use-after-free when deleting claims
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: prevent use-after-free when deleting claims When batadv_bla_del_backbone_claims() removes all claims for a backbone, it does this by dropping the link entry in the hash list. This list entry itself was one of the references which need to be dropped at the same time via batadv_claim_put(). But the batadv_claim_put() must not be done before the last access to the claim object in this function. Otherwise the claim might be freed already by the batadv_claim_release() function before the list entry was dropped.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.5
References 8
git.kernel.org
- stable/c/1d4b241482d9025c537afb3c7c8419c72c0e0c82
- stable/c/a1a99837bb6169cfb9187abaa2005e8f12079426
- stable/c/b88c865dcf6e9f20bfe66a360d4b62941ef769b8
- stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b
- stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472
- stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401
- stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa
- stable/c/4ae1709a314060a196981b344610d023ea841e57