CVE-2026-23408

HIGH EPSS 7.9%
Published Apr 1, 20263mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 1, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix double free of ns_name in aa_replace_profiles() if ns_name is NULL after 1071 error = aa_unpack(udata, &lh, &ns_name); and if ent->ns_name contains an ns_name in 1089 } else if (ent->ns_name) { then ns_name is assigned the ent->ns_name 1095 ns_name = ent->ns_name; however ent->ns_name is freed at 1262 aa_load_ent_free(ent); and then again when freeing ns_name at 1270 kfree(ns_name); Fix this by NULLing out ent->ns_name after it is transferred to ns_name ")

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
7.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥5.5.1  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.169
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.77
linuxlinux_kernel*≥6.13  –  <6.18.18
linuxlinux_kernel*≥6.19  –  <6.19.8
linuxlinux_kernel5.5any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689
    Patch