CVE-2026-31683

HIGH EPSS 2.2%
Published Apr 25, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 25, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: avoid OGM aggregation when skb tailroom is insufficient When OGM aggregation state is toggled at runtime, an existing forwarded packet may have been allocated with only packet_len bytes, while a later packet can still be selected for aggregation. Appending in this case can hit skb_put overflow conditions. Reject aggregation when the target skb tailroom cannot accommodate the new packet. The caller then falls back to creating a new forward packet instead of appending.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥2.6.38  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.20
linuxlinux_kernel*≥6.19  –  <6.19.10
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0d4aef630be9d5f9c1227d07669c26c4383b5ad0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1ada20331f2df2a942d6b83ae1f04a304b642e2a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67176c96f325837b0bb3e9538ca2eba414f447d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6755347c5f9bdd44dee80f692208b056fcd40a52
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eda89a1bae0602aec8314ced299bb243b9f9aeef
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0d4aef630be9d5f9c1227d07669c26c4383b5ad0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1ada20331f2df2a942d6b83ae1f04a304b642e2a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/67176c96f325837b0bb3e9538ca2eba414f447d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6755347c5f9bdd44dee80f692208b056fcd40a52
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eda89a1bae0602aec8314ced299bb243b9f9aeef
    Patch