CVE-2026-43493

CRITICAL

crypto: pcrypt - Fix handling of MAY_BACKLOG requests

Title source: cna
STIX 2.1

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.

References (8)

Core 8

Scores

CVSS v3 9.8
EPSS 0.0055
EPSS Percentile 42.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (27)
linux/Kernel 2.6.34 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 2.6.34
Linux/Linux 2.6.34
Linux/Linux 5.10.258 - 5.10.*
... and 17 more
Published May 19, 2026
Tracked Since May 19, 2026