CVE-2026-46212

HIGH EPSS 19.1%
Published May 28, 20261mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published May 28, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
19.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥3.5  –  <5.10.258
linuxlinux_kernel*≥5.11  –  <5.15.209
linuxlinux_kernel*≥5.16  –  <6.1.175
linuxlinux_kernel*≥6.2  –  <6.6.140
linuxlinux_kernel*≥6.7  –  <6.12.90
linuxlinux_kernel*≥6.13  –  <6.18.32
linuxlinux_kernel*≥6.19  –  <7.0.9
linuxlinux_kernel7.1any
linuxlinux_kernel7.1any
linuxlinux_kernel7.1any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1d4b241482d9025c537afb3c7c8419c72c0e0c82
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ae1709a314060a196981b344610d023ea841e57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a1a99837bb6169cfb9187abaa2005e8f12079426
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b88c865dcf6e9f20bfe66a360d4b62941ef769b8
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1d4b241482d9025c537afb3c7c8419c72c0e0c82
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ae1709a314060a196981b344610d023ea841e57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a1a99837bb6169cfb9187abaa2005e8f12079426
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b88c865dcf6e9f20bfe66a360d4b62941ef769b8
    Patch