{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d72541f945127b4873dace501406a1bc8cd8e1e9"
            },
            {
              "fixed": "13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225"
            },
            {
              "fixed": "a19bede30f0da5ae56782edac62b5998a7434cba"
            },
            {
              "fixed": "33f706884821da9cb55b650b7b1d4f2bdf800137"
            },
            {
              "fixed": "2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b"
            },
            {
              "fixed": "9c6af88fbefbe77608b77409df23a1617e28398c"
            },
            {
              "fixed": "c593f38e1cdb92f87d01be4c4e5ac12417b1454b"
            },
            {
              "fixed": "012bfcd5a51082d5a65f096dfb9ca652b5267965"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.15.0"
            },
            {
              "fixed": "5.15.222"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.189"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98593.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/debug: Fix NULL pointer dereference in debug_info_copy()\n\nWhen debug_register_static() fails, it clears areas, active_pages and\nactive_entries but leaves the area bounds unchanged. Copying such an\narea, either by opening its view file or via debug_dump(), makes\ndebug_info_copy() dereference the NULL pointers.\n\nSkip the copy loop when the source has no areas.",
  "id": "CVE-2026-98593",
  "modified": "2026-10-20T02:30:41.995357459Z",
  "published": "2026-10-18T15:19:05.272Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98593.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98593"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "s390/debug: Fix NULL pointer dereference in debug_info_copy()"
}