{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4381a36abdf1c5c0323c1c51f869dc000115eb20"
            },
            {
              "fixed": "c78e1d4e48f23792adaa7c94251e22b0d9700a39"
            },
            {
              "fixed": "9e1b798257f96d2e2a2639830eb71add545ce749"
            },
            {
              "fixed": "7003ae4810ca83f0ddca85b768500e313c4b998c"
            },
            {
              "fixed": "61f2aa23b0ce8d7aa5071ed25a7471e246a4fdd4"
            },
            {
              "fixed": "08e57f5e1a9067d5fbf33993aa7f51d60b3d13a4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "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"
        },
        {
          "events": [
            {
              "introduced": "6.20.0"
            },
            {
              "fixed": "7.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31582.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (powerz) Fix use-after-free on USB disconnect\n\nAfter powerz_disconnect() frees the URB and releases the mutex, a\nsubsequent powerz_read() call can acquire the mutex and call\npowerz_read_data(), which dereferences the freed URB pointer.\n\nFix by:\n - Setting priv-\u003eurb to NULL in powerz_disconnect() so that\n   powerz_read_data() can detect the disconnected state.\n - Adding a !priv-\u003eurb check at the start of powerz_read_data()\n   to return -ENODEV on a disconnected device.\n - Moving usb_set_intfdata() before hwmon registration so the\n   disconnect handler can always find the priv pointer.",
  "id": "CVE-2026-31582",
  "modified": "2026-08-12T03:51:42.523991061Z",
  "published": "2026-04-24T14:42:12.257Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/08e57f5e1a9067d5fbf33993aa7f51d60b3d13a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61f2aa23b0ce8d7aa5071ed25a7471e246a4fdd4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7003ae4810ca83f0ddca85b768500e313c4b998c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e1b798257f96d2e2a2639830eb71add545ce749"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c78e1d4e48f23792adaa7c94251e22b0d9700a39"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31582.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31582"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "hwmon: (powerz) Fix use-after-free on USB disconnect"
}