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CVE-2026-43493

crypto: pcrypt - Fix handling of MAY_BACKLOG requests

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.86, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in ae7e95638d956d556d74b9abb9e780d3bd3dcd9e; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 1d7f07df450bac3301938fbc4251f2611be4084e; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 76641449b28979ebd6c02e9598367e119e385236; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 9f1cbca178c03188e201ed175251372149bb25f2; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in eb34e243df57e32f4c08fa191f3602ea19076276; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 77d55bc8675ee851ed639dc9be77325a8024cf67; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a; From 5a1436beec5744029f3ac90b6fe71a698dcd6155 · fixed in 915b692e6cb723aac658c25eb82c58fd81235110

  • Linux Linux

    2.6.34

  • KernelLinux

    From 2.6.34 · fixed in 5.10.258; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.140; From 6.7.0 · fixed in 6.12.86; From 6.13.0 · fixed in 6.18.27; From 6.19.0 · fixed in 7.0.4

References 8

git.kernel.org