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Vulnerability record · CVE-2026-43493 · published 19 May 2026

CVE-2026-43493: Linux kernel vulnerability

Linux · Linux Kernel

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.

9.8 CVSS 3.1 Critical EPSS 0.76% · top 46.7%
9.8CVSS 3.1 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
26 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-43493), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.