CVE-2026-23098

HIGH EPSS 7.4%
Published Feb 4, 20264mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: netrom: fix double-free in nr_route_frame() In nr_route_frame(), old_skb is immediately freed without checking if nr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL, the caller function will free old_skb again, causing a double-free bug. Therefore, to prevent this, we need to modify it to check whether nr_neigh->ax25 is NULL before freeing old_skb.

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
7.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 17

VendorProductVersionRange
linuxlinux_kernel*≥2.6.12.1  –  <5.10.249
linuxlinux_kernel*≥5.11  –  <5.15.199
linuxlinux_kernel*≥5.16  –  <6.1.162
linuxlinux_kernel*≥6.2  –  <6.6.122
linuxlinux_kernel*≥6.7  –  <6.12.68
linuxlinux_kernel*≥6.13  –  <6.18.8
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/25aab6bfc31017a7e52035b99aef5c2b6bde8ffb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e0110ea90313b7c0558a0b77038274a6821caf8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7c48fdf2d1349bb54815b56fb012b9d577707708
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94d1a8bd08af1f4cc345c5c29f5db1ea72b8bb8c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f5fa78d9980fe75a69835521627ab7943cb3d67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba1096c315283ee3292765f6aea4cca15816c4f7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bd8955337e3764f912f49b360e176d8aaecf7016
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/25aab6bfc31017a7e52035b99aef5c2b6bde8ffb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6e0110ea90313b7c0558a0b77038274a6821caf8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7c48fdf2d1349bb54815b56fb012b9d577707708
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94d1a8bd08af1f4cc345c5c29f5db1ea72b8bb8c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f5fa78d9980fe75a69835521627ab7943cb3d67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba1096c315283ee3292765f6aea4cca15816c4f7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bd8955337e3764f912f49b360e176d8aaecf7016
    Patch