CVE-2026-45971

MEDIUM EPSS 2.2%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Limit bpf program signature size Practical BPF signatures are significantly smaller than KMALLOC_MAX_CACHE_SIZE Allowing larger sizes opens the door for abuse by passing excessive size values and forcing the kernel into expensive allocation paths (via kmalloc_large or vmalloc).

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

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

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥6.18  –  <6.18.14
linuxlinux_kernel*≥6.19  –  <6.19.4

References 3

  • git.kernel.org https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36
    Patch