{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90126",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.788Z",
        "datePublished": "2026-09-17T16:06:28.568Z",
        "dateUpdated": "2026-10-19T08:58:24.498Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:58:24.498Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pcf8563: fix clock provider leak on unbind\n\npcf8563_clkout_register_clk() registers the CLKOUT clock provider with\nof_clk_add_provider(), but nothing ever unwinds it: there is no\nof_clk_del_provider() call and the driver has no remove callback. Each\nof_clk_add_provider() allocates a struct of_clk_provider, takes a\nreference on the OF node and adds an entry to the global of_clk_providers\nlist, none of which is released when the device is unbound. Every\nbind/unbind (or module reload) therefore leaks a provider structure and\nan of_node reference.\n\nThe clock itself is already device-managed (devm_clk_register()); only\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so\nthe provider is removed automatically on unbind. Tie it to the parent\ni2c device, whose OF node carries the #clock-cells and clock-output-names\nproperties (the RTC class device has no OF node of its own)."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/rtc/rtc-pcf8563.c"
                    ],
                    "versions": [
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "30b7c63af50fe1464e7582a37de1ca4bd030ecc1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "7afb8db47c4f107bce89cfe5115fb31ba7c94665",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "97edf3fd9a46ea89a167966991c0449cfa07b36f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "08a59c28c2bdbcd655e99526c86a41dc83834283",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "6218c0533a72235ec9c5f41b812c63d963bd4a3e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a39a6405d5f949bc651694028a55d74c514ef1f9",
                            "lessThan": "9c48a53685040bb0de45a640b34055cbbfc69d4f",
                            "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/rtc/rtc-pcf8563.c"
                    ],
                    "versions": [
                        {
                            "version": "4.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "4.4",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675"
                },
                {
                    "url": "https://git.kernel.org/stable/c/36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/30b7c63af50fe1464e7582a37de1ca4bd030ecc1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7afb8db47c4f107bce89cfe5115fb31ba7c94665"
                },
                {
                    "url": "https://git.kernel.org/stable/c/97edf3fd9a46ea89a167966991c0449cfa07b36f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/08a59c28c2bdbcd655e99526c86a41dc83834283"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6218c0533a72235ec9c5f41b812c63d963bd4a3e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9c48a53685040bb0de45a640b34055cbbfc69d4f"
                }
            ],
            "title": "rtc: pcf8563: fix clock provider leak on unbind",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}