HarborGuard / CVE
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CRITICALCVE-2026-43493Published Modified CNA Linux

CVE-2026-43493: 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.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
0
Affected Products
2

Fix available

046271895ddfb1ba41f89f7e0dffbe9c2bcf7380a6.6.1406.12.866.18.277.0.47.1-rc177d55bc8675ee851ed639dc9be77325a8024cf67915b692e6cb723aac658c25eb82c58fd812351109f1cbca178c03188e201ed175251372149bb25f2eb34e243df57e32f4c08fa191f3602ea19076276
Affected packages
  • Linux / Linux
    < 9f1cbca178c03188e201ed175251372149bb25f2 (from 5a1436beec5744029f3ac90b6fe71a698dcd6155) · < eb34e243df57e32f4c08fa191f3602ea19076276 (from 5a1436beec5744029f3ac90b6fe71a698dcd6155) · < 77d55bc8675ee851ed639dc9be77325a8024cf67 (from 5a1436beec5744029f3ac90b6fe71a698dcd6155) · < 46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a (from 5a1436beec5744029f3ac90b6fe71a698dcd6155) · < 915b692e6cb723aac658c25eb82c58fd81235110 (from 5a1436beec5744029f3ac90b6fe71a698dcd6155)
  • Linux / Linux
    2.6.34
    Fixed in 0, 6.6.140, 6.12.86, 6.18.27, 7.0.4, 7.1-rc1
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References