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MediumFix available

crypto: qat - fix memory leak in RSA

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix memory leak in RSA When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.58, 5.18.15
CVEs
CVE-2022-49566
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 10:46 UTC · Revision 1

Source evidence

crypto: qat - fix memory leak in RSA

core-osv · Original source

Published 26 Feb 2025, 02:23 UTC

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix memory leak in RSA When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context.

osv:CVE-2022-49566

Kernel

Fixed versions: 5.15.58, 5.18.15

Complete source record
{
  "id": "3b6d5597fabaea849b9b7d19bb685aeda14cbfc4753c51df98a4d43298bbde6b",
  "url": "https://osv.dev/vulnerability/CVE-2022-49566",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "crypto: qat - fix memory leak in RSA",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix memory leak in RSA When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context.",
    "evidence": "osv:CVE-2022-49566",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.58",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.15",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49566",
      "aliases": [
        "CVE-2022-49566"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                },
                {
                  "fixed": "a843925e0287eebb4aa808666bf22c664dfe4c53"
                },
                {
                  "fixed": "0f967fdc09955221a1951a279481b0bf4d359941"
                },
                {
                  "fixed": "80a52e1ee7757b742f96bfb0d58f0c14eb6583d0"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49566.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.8.0"
                },
                {
                  "fixed": "5.15.58"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.18.15"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49566.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:44.147868675Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0f967fdc09955221a1951a279481b0bf4d359941",
        "https://git.kernel.org/stable/c/80a52e1ee7757b742f96bfb0d58f0c14eb6583d0",
        "https://git.kernel.org/stable/c/a843925e0287eebb4aa808666bf22c664dfe4c53",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49566.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49566",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49566.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49566",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 511666,
  "published_at": "2025-02-26T02:23:11.749+00:00"
}