{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "56e62a73702836017564eaacd5212e4d0fa1c01d"
            },
            {
              "fixed": "3c3b97064764899c39a0abbd35a6caa031e70333"
            },
            {
              "fixed": "1cb9c7bc9025c637564fabc7fcc3c9343949e310"
            },
            {
              "fixed": "7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"
            },
            {
              "fixed": "f8c444b918d639e1f9a621ee20fe481c1d10dfc4"
            },
            {
              "fixed": "87776f02449e3bded95b2ccbd6b012e9ae64e6f3"
            },
            {
              "fixed": "4d05dd18d867d58c6952a3bc260d244899da7256"
            },
            {
              "fixed": "48b8814e25d073dd84daf990a879a820bad2bcbd"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.12.0"
            },
            {
              "fixed": "5.15.203"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.168"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.131"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.80"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.21"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31483.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/syscalls: Add spectre boundary for syscall dispatch table\n\nThe s390 syscall number is directly controlled by userspace, but does\nnot have an array_index_nospec() boundary to prevent access past the\nsyscall function pointer tables.",
  "id": "CVE-2026-31483",
  "modified": "2026-07-15T01:49:15.451994753Z",
  "published": "2026-04-22T13:54:09.561Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31483.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31483"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "s390/syscalls: Add spectre boundary for syscall dispatch table"
}