CVE-2026-23412

HIGH EPSS 1.9%
Published Apr 2, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 2, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: defer hook memory release until rcu readers are done Yiming Qian reports UaF when concurrent process is dumping hooks via nfnetlink_hooks: BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0 Read of size 8 at addr ffff888003edbf88 by task poc/79 Call Trace: <TASK> nfnl_hook_dump_one.isra.0+0xe71/0x10f0 netlink_dump+0x554/0x12b0 nfnl_hook_get+0x176/0x230 [..] Defer release until after concurrent readers have completed.

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
1.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥6.4.1  –  <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_kernel6.4any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0
    Patch