{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e4f2379db6c6823c5d4a4c2c912df00c65de51d7"
            },
            {
              "fixed": "abd338da658d7faa8e26cfefc8f83f0066707564"
            },
            {
              "fixed": "5f29dd540fe5ea3c826fc8ec759ba488b31f9707"
            },
            {
              "fixed": "6fc7449773748c7b904235a09a67054d78ab1172"
            },
            {
              "fixed": "81431da777924dddaefa5c9b0ca9da4a93f9df96"
            },
            {
              "fixed": "d0f2386f529807826e7404d40a245ee428f89f62"
            },
            {
              "fixed": "8efd5dcd31e22a9308b16b107a052fcd568c0a99"
            },
            {
              "fixed": "8f9adb3605e36f75639de529bb3d66e94194a388"
            },
            {
              "fixed": "2503d08f8a2de618e5c3a8183b250ff4a2e2d52c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "5.10.253"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.203"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.167"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.130"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.78"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64587.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: arc: emac: quiesce interrupts before requesting IRQ\n\nNormal RX/TX interrupts are enabled later, in arc_emac_open(), so probe\nshould not see interrupt delivery in the usual case. However, hardware may\nstill present stale or latched interrupt status left by firmware or the\nbootloader.\n\nIf probe later unwinds after devm_request_irq() has installed the handler,\nsuch a stale interrupt can still reach arc_emac_intr() during teardown and\nrace with release of the associated net_device.\n\nAvoid that window by putting the device into a known quiescent state before\nrequesting the IRQ: disable all EMAC interrupt sources and clear any\npending EMAC interrupt status bits. This keeps the change hardware-focused\nand minimal, while preventing spurious IRQ delivery from leftover state.",
  "id": "CVE-2026-64587",
  "modified": "2026-08-08T03:30:21.472859946Z",
  "published": "2026-08-06T07:06:27.765Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2503d08f8a2de618e5c3a8183b250ff4a2e2d52c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f29dd540fe5ea3c826fc8ec759ba488b31f9707"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fc7449773748c7b904235a09a67054d78ab1172"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81431da777924dddaefa5c9b0ca9da4a93f9df96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8efd5dcd31e22a9308b16b107a052fcd568c0a99"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f9adb3605e36f75639de529bb3d66e94194a388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abd338da658d7faa8e26cfefc8f83f0066707564"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0f2386f529807826e7404d40a245ee428f89f62"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64587.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64587"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "net: ethernet: arc: emac: quiesce interrupts before requesting IRQ"
}