CVE-2026-43493

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e	Patch
https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a	Patch
https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236	Patch
https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67	Patch
https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110	Patch
https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2	Patch
https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e	Patch
https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276	Patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html

Configurations

Configuration 1 (hide)

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

History

19 Oct 2026, 20:18

Type	Values Removed	Values Added
CWE		CWE-390

15 Oct 2026, 02:19

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-784472.html -

Information

Published : 2026-05-19 12:16

Updated : 2026-10-19 20:18

NVD link : CVE-2026-43493

Mitre link : CVE-2026-43493

CVE.ORG link : CVE-2026-43493

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-390

Detection of Error Condition Without Action

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