{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "e93f995a591c352d35d89c518c54f790e1537754"
            },
            {
              "fixed": "cf60bbca1b83a7e0927e36dbf178328982927886"
            },
            {
              "fixed": "1750a0983c455a9b3badd848471fc8d58cb61f67"
            },
            {
              "fixed": "a815a3e019456c94b03bd183e7ac22fd29e9e6fd"
            },
            {
              "fixed": "6edd0cdee5780fd5f43356b72b29a2a6d48ef6da"
            },
            {
              "fixed": "ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa"
            },
            {
              "fixed": "2224897d8187dc22a83e05d9361efcccf67bcf12"
            },
            {
              "fixed": "0aac6e60c464a5f942f995428e67f8ae1c422250"
            },
            {
              "fixed": "c5f31c655bcc01b6da53b836ac951c1556245305"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "4.9.337"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "4.10.0"
            },
            {
              "fixed": "4.14.303"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "4.15.0"
            },
            {
              "fixed": "4.19.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "4.20.0"
            },
            {
              "fixed": "5.4.229"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "fixed": "5.10.163"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.0.16"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.1.0"
            },
            {
              "fixed": "6.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50749.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nacct: fix potential integer overflow in encode_comp_t()\n\nThe integer overflow is descripted with following codes:\n  \u003e 317 static comp_t encode_comp_t(u64 value)\n  \u003e 318 {\n  \u003e 319         int exp, rnd;\n    ......\n  \u003e 341         exp \u003c\u003c= MANTSIZE;\n  \u003e 342         exp += value;\n  \u003e 343         return exp;\n  \u003e 344 }\n\nCurrently comp_t is defined as type of '__u16', but the variable 'exp' is\ntype of 'int', so overflow would happen when variable 'exp' in line 343 is\ngreater than 65535.",
  "id": "CVE-2022-50749",
  "modified": "2026-04-01T23:10:36.264905680Z",
  "published": "2025-12-24T13:05:44.734Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0aac6e60c464a5f942f995428e67f8ae1c422250"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1750a0983c455a9b3badd848471fc8d58cb61f67"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2224897d8187dc22a83e05d9361efcccf67bcf12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6edd0cdee5780fd5f43356b72b29a2a6d48ef6da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a815a3e019456c94b03bd183e7ac22fd29e9e6fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5f31c655bcc01b6da53b836ac951c1556245305"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf60bbca1b83a7e0927e36dbf178328982927886"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e93f995a591c352d35d89c518c54f790e1537754"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50749.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50749"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "acct: fix potential integer overflow in encode_comp_t()"
}