CVE-2026-53020

In the Linux kernel, the following vulnerability has been resolved: um: Fix potential race condition in TLB sync During the TLB sync, we need to traverse and modify the page table, so we should hold the page table lock. Since full SMP support for threads within the same process is still missing, let's disable the split page table lock for simplicity.

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/102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3	Patch
https://git.kernel.org/stable/c/f21c343ec7419377bff89ab11146c03ae117036f	Patch

Configurations

Configuration 1 (hide)

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

History

15 Jul 2026, 14:12

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3 -~~	() https://git.kernel.org/stable/c/102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3 - Patch
References	~~() https://git.kernel.org/stable/c/f21c343ec7419377bff89ab11146c03ae117036f -~~	() https://git.kernel.org/stable/c/f21c343ec7419377bff89ab11146c03ae117036f - Patch
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CWE		CWE-362
First Time		Linux linux Kernel Linux

28 Jun 2026, 08:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8

24 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 17:17

Updated : 2026-07-15 14:12

NVD link : CVE-2026-53020

Mitre link : CVE-2026-53020

CVE.ORG link : CVE-2026-53020

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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