{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "295cbf6d63165fe4253cf1d9ceadcda47a318b48"
            },
            {
              "fixed": "2f7730c03a9deea3ba7a1c980070d363b4ea2046"
            },
            {
              "fixed": "d20ee42f8226607b5693b2bc2f115ca2d270221a"
            },
            {
              "fixed": "15ba8053fe4162c933855f1676fb321cdb6251c7"
            },
            {
              "fixed": "3446ffb5d03c36f9ce88ede7ca5be319a2968d96"
            },
            {
              "fixed": "87a56c1e8e36d06ebe8640432f911538ded7827d"
            },
            {
              "fixed": "1caee6e084a96ada94658f261ced377d85af3f03"
            },
            {
              "fixed": "a1dd41d00c57efb1fbc6f361c5f48c9d00cca51c"
            },
            {
              "fixed": "98e37db4a34d3af3fb2f4648295c25b5e40b20e3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.23"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72181.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmips: sched: Fix CPUMASK_OFFSTACK memory corruption\n\nThis patch addresses a critical memory management flaw. When\nCONFIG_CPUMASK_OFFSTACK is enabled, cpumask_var_t is a pointer.\nConsequently, sizeof(new_mask) evaluates to the pointer size, causing\ncopy_from_user() to clobber the mask pointer. Furthermore, the old\nlogic performed copy_from_user() before allocating the mask.\n\nFix this by allocating new_mask first. To handle variable-sized user\nmasks correctly, use cpumask_size() to truncate overly large user masks\nor pad undersized masks with zeros before copying the data directly into\nthe allocated buffer.",
  "id": "CVE-2026-72181",
  "modified": "2026-08-21T03:30:21.657392361Z",
  "published": "2026-08-15T05:53:44.453Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15ba8053fe4162c933855f1676fb321cdb6251c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1caee6e084a96ada94658f261ced377d85af3f03"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f7730c03a9deea3ba7a1c980070d363b4ea2046"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3446ffb5d03c36f9ce88ede7ca5be319a2968d96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87a56c1e8e36d06ebe8640432f911538ded7827d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98e37db4a34d3af3fb2f4648295c25b5e40b20e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1dd41d00c57efb1fbc6f361c5f48c9d00cca51c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d20ee42f8226607b5693b2bc2f115ca2d270221a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72181.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72181"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "mips: sched: Fix CPUMASK_OFFSTACK memory corruption"
}