CVE-2026-46238

HIGH EPSS 17.5%
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: stop caching unowned originator pointers in BAT IV BAT IV keeps the last-hop neighbor address in each neigh_node, but some paths also cache an originator pointer derived from a temporary lookup. That pointer is not owned by the neigh_node and may no longer refer to a live originator entry after purge handling runs. Stop storing the auxiliary originator pointer in the BAT IV neighbor state. When BAT IV needs the neighbor originator data, resolve it from the stored neighbor address and drop the reference again after use. [sven: avoid bonding logic for outgoing OGM]

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
17.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥2.6.38  –  <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/09dc0d1a12222ffca6481916eab3cfea477b9620
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/384e3050a42be9085d50507b4d5f8266a588d742
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67bceeb22207f1f5a402973a3a0809e5f2698f38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e20700f8c524ac379ba8274ff5d453023b7c006
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86b2b58d7c228d850c8c78e4144e6123e8ed2718
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c16c68fdbb69778f8d04f650340c3f4d1518f8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aafcbaf1159ea224528ca4075d0ba8c10ef374af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f03e8583532941b07761c5429de7d50766fa3110
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09dc0d1a12222ffca6481916eab3cfea477b9620
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/384e3050a42be9085d50507b4d5f8266a588d742
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67bceeb22207f1f5a402973a3a0809e5f2698f38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e20700f8c524ac379ba8274ff5d453023b7c006
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86b2b58d7c228d850c8c78e4144e6123e8ed2718
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c16c68fdbb69778f8d04f650340c3f4d1518f8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aafcbaf1159ea224528ca4075d0ba8c10ef374af
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f03e8583532941b07761c5429de7d50766fa3110
    Patch