{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31582",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.119Z",
        "datePublished": "2026-04-24T14:42:12.257Z",
        "dateUpdated": "2026-06-14T17:42:10.056Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:42:10.056Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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->urb to NULL in powerz_disconnect() so that\n   powerz_read_data() can detect the disconnected state.\n - Adding a !priv->urb 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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/powerz.c"
                    ],
                    "versions": [
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "c78e1d4e48f23792adaa7c94251e22b0d9700a39",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "9e1b798257f96d2e2a2639830eb71add545ce749",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "7003ae4810ca83f0ddca85b768500e313c4b998c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "61f2aa23b0ce8d7aa5071ed25a7471e246a4fdd4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "08e57f5e1a9067d5fbf33993aa7f51d60b3d13a4",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/powerz.c"
                    ],
                    "versions": [
                        {
                            "version": "6.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.83",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.24",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.14",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.1",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.12.83"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.18.24"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.19.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "7.0.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c78e1d4e48f23792adaa7c94251e22b0d9700a39"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9e1b798257f96d2e2a2639830eb71add545ce749"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7003ae4810ca83f0ddca85b768500e313c4b998c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/61f2aa23b0ce8d7aa5071ed25a7471e246a4fdd4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/08e57f5e1a9067d5fbf33993aa7f51d60b3d13a4"
                }
            ],
            "title": "hwmon: (powerz) Fix use-after-free on USB disconnect",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}