CVE-2026-45971

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

16 Jun 2026, 02:42

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel::::::::
References	~~() https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9 -~~	() https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9 - Patch
References	~~() https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c -~~	() https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c - Patch
References	~~() https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36 -~~	() https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36 - Patch
CWE		NVD-CWE-noinfo
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
First Time		Linux linux Kernel Linux

27 May 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52

NVD link : CVE-2026-45971

Mitre link : CVE-2026-45971

CVE.ORG link : CVE-2026-45971

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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