{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5a1436beec5744029f3ac90b6fe71a698dcd6155"
            },
            {
              "fixed": "ae7e95638d956d556d74b9abb9e780d3bd3dcd9e"
            },
            {
              "fixed": "1d7f07df450bac3301938fbc4251f2611be4084e"
            },
            {
              "fixed": "76641449b28979ebd6c02e9598367e119e385236"
            },
            {
              "fixed": "9f1cbca178c03188e201ed175251372149bb25f2"
            },
            {
              "fixed": "eb34e243df57e32f4c08fa191f3602ea19076276"
            },
            {
              "fixed": "77d55bc8675ee851ed639dc9be77325a8024cf67"
            },
            {
              "fixed": "46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a"
            },
            {
              "fixed": "915b692e6cb723aac658c25eb82c58fd81235110"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.34"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43493.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: pcrypt - Fix handling of MAY_BACKLOG requests\n\nMAY_BACKLOG requests can return EBUSY.  Handle them by checking\nfor that value and filtering out EINPROGRESS notifications.",
  "id": "CVE-2026-43493",
  "modified": "2026-07-08T05:38:23.086155434Z",
  "published": "2026-05-19T10:44:25.402Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43493.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43493"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "crypto: pcrypt - Fix handling of MAY_BACKLOG requests"
}