{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-71158",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:30:19.665Z",
        "datePublished": "2026-01-23T15:23:57.016Z",
        "dateUpdated": "2026-08-05T12:12:24.125Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:12:24.125Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: mpsse: ensure worker is torn down\n\nWhen an IRQ worker is running, unplugging the device would cause a\ncrash. The sealevel hardware this driver was written for was not\nhotpluggable, so I never realized it.\n\nThis change uses a spinlock to protect a list of workers, which\nit tears down on disconnect."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - A local caller with write access to the USB device node can issue USBDEVFS_IOCTL containing USBDEVFS_DISCONNECT, which synchronously reaches gpio_mpsse_disconnect(); physical unplugging is an additional path.\nAC:L - The attacker can arm edge detection through GPIO_V2_GET_LINE_IOCTL and then initiate software disconnect, controlling both sides of the race. The continuously running polling worker makes repeated triggering practical.\nPR:L - Neither the GPIO request nor USBFS disconnect path performs a capable() or ns_capable() check; access is governed only by device-node DAC/LSM policy, so a basic user granted device access suffices.\nUI:N - No victim action is required after the attacker arms the worker and disconnects the interface, and deployed controller services may already keep GPIO edge IRQs continuously active.\nS:U - The vulnerable worker and affected resources are within the same host-kernel security authority, with no VM, IOMMU, or other security-boundary crossing.\nC:H - The worker can continue dereferencing a devm-freed mpsse_priv containing kernel pointers and synchronization objects, allowing attacker-influenced reclaimed contents to support kernel-memory disclosure.\nI:H - The use-after-free performs operations through reclaimed pointers and mutexes, while the reclaimed gpio.ngpio value controls loops over fixed 16-entry stack arrays, making arbitrary corruption and control-flow hijacking defensible.\nA:H - The documented outcome is a kernel crash on disconnect, reachable through immediate NULL dereferences or subsequent use-after-free accesses by the unterminated worker."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpio/gpio-mpsse.c"
                    ],
                    "versions": [
                        {
                            "version": "c46a74ff05c0ac76ba11ef21c930c3b447abf31a",
                            "lessThan": "472d900c8bcac301ae0e40fdca7db799bd989ff5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c46a74ff05c0ac76ba11ef21c930c3b447abf31a",
                            "lessThan": "179ef1127d7a4f09f0e741fa9f30b8a8e7886271",
                            "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/gpio/gpio-mpsse.c"
                    ],
                    "versions": [
                        {
                            "version": "6.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.6",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "6.13",
                                    "versionEndExcluding": "6.18.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13",
                                    "versionEndExcluding": "6.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/472d900c8bcac301ae0e40fdca7db799bd989ff5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/179ef1127d7a4f09f0e741fa9f30b8a8e7886271"
                }
            ],
            "title": "gpio: mpsse: ensure worker is torn down",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}