CVE-2026-45995

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix user_struct uaf io_free_rbuf_ring() usees a struct user_struct, which io_zcrx_ifq_free() puts it down before destroying the ring.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0fcccfd87152f957fa8312b841f6efef42a05a20	Patch
https://git.kernel.org/stable/c/9feb88eeda6d288f93fcfb6bca563f89e316479d	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

16 Jun 2026, 13:46

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel::::::::
First Time		Linux linux Kernel Linux
CWE		CWE-416
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
References	~~() https://git.kernel.org/stable/c/0fcccfd87152f957fa8312b841f6efef42a05a20 -~~	() https://git.kernel.org/stable/c/0fcccfd87152f957fa8312b841f6efef42a05a20 - Patch
References	~~() https://git.kernel.org/stable/c/9feb88eeda6d288f93fcfb6bca563f89e316479d -~~	() https://git.kernel.org/stable/c/9feb88eeda6d288f93fcfb6bca563f89e316479d - Patch

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-2026-45995

Mitre link : CVE-2026-45995

CVE.ORG link : CVE-2026-45995

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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