{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1b50b8a371e90a5e110f466e4ac02cf6b5f681de"
            },
            {
              "fixed": "ca7c92d9701249e6daf132087756a88cbf2bb2a3"
            },
            {
              "fixed": "b33b44250d57ab0e5a1e2571b5285fb0d0a7f382"
            },
            {
              "fixed": "728f479dc0447ae7eaef87926ff49142e415a811"
            },
            {
              "fixed": "0a8b7a6d763775709c601f584e709ae48bcc000a"
            },
            {
              "fixed": "cce42014415cecd98aa49b3950e7b02ee7c81268"
            },
            {
              "fixed": "a597a722fb71a534138c20359b655726622b5f17"
            },
            {
              "fixed": "00d034fe8230dfc5832fe011ff2d81c1a2cc7a29"
            },
            {
              "fixed": "64cdf7d30ac18e43df6c48004435febb965809a8"
            }
          ],
          "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": "5.10.261"
            }
          ],
          "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-2026-72350.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_u32: reject invalid shift counts\n\nu32_match_it() executes rule-supplied shift operands on a 32-bit\nvalue. A malformed u32 rule can provide a shift count of 32 or more,\ntriggering an undefined shift out-of-bounds during packet evaluation.\n\nValidate XT_U32_LEFTSH and XT_U32_RIGHTSH operands in\nu32_mt_checkentry() and reject malformed rules before they reach the\npacket path.",
  "id": "CVE-2026-72350",
  "modified": "2026-08-18T03:31:05.477523533Z",
  "published": "2026-08-15T05:55:53.532Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00d034fe8230dfc5832fe011ff2d81c1a2cc7a29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a8b7a6d763775709c601f584e709ae48bcc000a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64cdf7d30ac18e43df6c48004435febb965809a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/728f479dc0447ae7eaef87926ff49142e415a811"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a597a722fb71a534138c20359b655726622b5f17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b33b44250d57ab0e5a1e2571b5285fb0d0a7f382"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca7c92d9701249e6daf132087756a88cbf2bb2a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cce42014415cecd98aa49b3950e7b02ee7c81268"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72350.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72350"
    },
    {
      "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": "netfilter: xt_u32: reject invalid shift counts"
}