{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3"
            },
            {
              "fixed": "d18da11a5e21eac7651c8897e5e0908f6c2bc9de"
            },
            {
              "fixed": "dfcba8c8674cead6c88a2f269b71aa4efd3d384a"
            },
            {
              "fixed": "cfab2c817d2e7e0bee98d66850246ce842ed5f18"
            },
            {
              "fixed": "6cfc187d85f18f976d0fe527d4c6f6171542cc19"
            },
            {
              "fixed": "f34feda8e0c9535fee3f8870ce8bab53c2798f71"
            },
            {
              "fixed": "7a2cb02437d92ed14fe494d8994056d5bd2c72b4"
            },
            {
              "fixed": "7b568e9eba2fad89a696f22f0413d44cf4a1f892"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.13.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.136"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.83"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.24"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43079.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Skip discovery table for offline dies\n\nThis warning can be triggered if NUMA is disabled and the system\nboots with fewer CPUs than the number of CPUs in die 0.\n\nWARNING: CPU: 9 PID: 7257 at uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore]\n\nCurrently, the discovery table continues to be parsed even if all CPUs\nin the associated die are offline.  This can lead to an array overflow\nat \"pmu-\u003eboxes[die] = box\" in uncore_pci_pmu_register(), which may\ntrigger the warning above or cause other issues.",
  "id": "CVE-2026-43079",
  "modified": "2026-07-08T05:36:04.086995128Z",
  "published": "2026-05-06T07:40:15.767Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43079.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43079"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "perf/x86/intel/uncore: Skip discovery table for offline dies"
}