QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2026-46093

Back to search

CVE-2026-46093

Published: May 27, 2026

Modified: May 30, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: take vmap_purge_lock in shrinker decay_va_pool_node() can be invoked concurrently from two paths: __purge_vmap_area_lazy() when pools are being purged, and the shrinker via vmap_node_shrink_scan(). However, decay_va_pool_node() is not safe to run concurrently, and the shrinker path currently lacks serialization, leading to races and possible leaks. Protect decay_va_pool_node() by taking vmap_purge_lock in the shrinker path to ensure serialization with purge users.

VendorProductVersions

Linux

Linux

affected
7679ba6b36dbb300b757b672d6a32a606499e14b - < 687ccdf582169cd680aeaf24cc953807c4cd4345
affected
7679ba6b36dbb300b757b672d6a32a606499e14b - < 12f2341b4c235d5593a433abac201c1c6725787f
affected
7679ba6b36dbb300b757b672d6a32a606499e14b - < ec05f51f1e65bce95528543eb73fda56fd201d94

Linux

Linux

affected
6.9
unaffected
0 - < 6.9
unaffected
6.18.27 - <= 6.18.*
unaffected
7.0.4 - <= 7.0.*
unaffected
7.1-rc1 - <= *

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now