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 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-25)

CWE

CWE-390

Published

2026-05-19

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e
• https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a
• https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236
• https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67
• https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110

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