CVE-2026-43493 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-43493
State: PUBLISHED
Assigner: Linux
Reserved: 2026-05-01 14:12 UTC
Published: 2026-05-19 10:44 UTC
Last updated: 2026-06-01 16:15 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	5a1436beec5744029f3ac90b6fe71a698dcd6155 < ae7e95638d956d556d74b9abb9e780d3bd3dcd9e, 5a1436beec5744029f3ac90b6fe71a698dcd6155 < 1d7f07df450bac3301938fbc4251f2611be4084e, 5a1436beec5744029f3ac90b6fe71a698dcd6155 < 76641449b28979ebd6c02e9598367e119e385236, 5a1436beec5744029f3ac90b6fe71a698dcd6155 < 9f1cbca178c03188e201ed175251372149bb25f2 …
Linux	Linux	—	2.6.34, 0 < 2.6.34, 5.10.258 ≤ 5.10., 5.15.209 ≤ 5.15. …

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (8)