{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38149",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:23.988Z",
        "datePublished": "2025-07-03T08:35:54.405Z",
        "dateUpdated": "2026-05-11T21:22:12.534Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:22:12.534Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: clear phydev->devlink when the link is deleted\n\nThere is a potential crash issue when disabling and re-enabling the\nnetwork port. When disabling the network port, phy_detach() calls\ndevice_link_del() to remove the device link, but it does not clear\nphydev->devlink, so phydev->devlink is not a NULL pointer. Then the\nnetwork port is re-enabled, but if phy_attach_direct() fails before\ncalling device_link_add(), the code jumps to the \"error\" label and\ncalls phy_detach(). Since phydev->devlink retains the old value from\nthe previous attach/detach cycle, device_link_del() uses the old value,\nwhich accesses a NULL pointer and causes a crash. The simplified crash\nlog is as follows.\n\n[   24.702421] Call trace:\n[   24.704856]  device_link_put_kref+0x20/0x120\n[   24.709124]  device_link_del+0x30/0x48\n[   24.712864]  phy_detach+0x24/0x168\n[   24.716261]  phy_attach_direct+0x168/0x3a4\n[   24.720352]  phylink_fwnode_phy_connect+0xc8/0x14c\n[   24.725140]  phylink_of_phy_connect+0x1c/0x34\n\nTherefore, phydev->devlink needs to be cleared when the device link is\ndeleted."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/phy/phy_device.c"
                    ],
                    "versions": [
                        {
                            "version": "bc66fa87d4fda9053a8145e5718fc278c2b88253",
                            "lessThan": "363fdf2777423ad346d781f09548cca14877f729",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc66fa87d4fda9053a8145e5718fc278c2b88253",
                            "lessThan": "ddc654e89ace723b78c34911c65243accbc9b75c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc66fa87d4fda9053a8145e5718fc278c2b88253",
                            "lessThan": "034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc66fa87d4fda9053a8145e5718fc278c2b88253",
                            "lessThan": "0795b05a59b1371b18ffbf09d385296b12e9f5d5",
                            "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/net/phy/phy_device.c"
                    ],
                    "versions": [
                        {
                            "version": "6.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.94",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.34",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.3",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16",
                            "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": "6.2",
                                    "versionEndExcluding": "6.6.94"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.12.34"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.15.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.16"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/363fdf2777423ad346d781f09548cca14877f729"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ddc654e89ace723b78c34911c65243accbc9b75c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0795b05a59b1371b18ffbf09d385296b12e9f5d5"
                }
            ],
            "title": "net: phy: clear phydev->devlink when the link is deleted",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}