CVE-2026-43493

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < ae7e95638d956d556d74b9abb9e780d3bd3dcd9eaffected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 1d7f07df450bac3301938fbc4251f2611be4084eaffected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 76641449b28979ebd6c02e9598367e119e385236affected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 9f1cbca178c03188e201ed175251372149bb25f2affected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < eb34e243df57e32f4c08fa191f3602ea19076276affected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 77d55bc8675ee851ed639dc9be77325a8024cf67affected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 46271895ddfb1ba41f89f7e0dffbe9c2bcf7380aaffected
LinuxLinux5a1436beec5744029f3ac90b6fe71a698dcd6155 < 915b692e6cb723aac658c25eb82c58fd81235110affected
LinuxLinux2.6.34affected
LinuxLinux0 < 2.6.34unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.86 <= 6.12.*unaffected
LinuxLinux6.18.27 <= 6.18.*unaffected
LinuxLinux7.0.4 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References