CVE-2026-43493
Critical
crypto: pcrypt - Fix handling of MAY_BACKLOG requests
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.
Exploit probability
0.6%
Published
May 19, 2026
Required by
Not available
Last source change
August 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-43493
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2
- https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e
- https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43493.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43493