{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74733",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.930Z",
        "datePublished": "2026-08-22T15:33:21.579Z",
        "dateUpdated": "2026-08-22T15:33:21.579Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:33:21.579Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock\n\nLocking is disabled in the regmap config as this driver uses its own\nlock. This means that all calls to regmap functions (read or write) must\nhold the i2c_lock. The function pca953x_irq_bus_sync_unlock() did not do\nthis, and it was therefore possible that multiple threads could cause an\nincorrect register to be read/written.\n\nA previous patch partly fixed this, but only protected the write to the\ninterrupt mask register, and not the read from the direction register."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpio/gpio-pca953x.c"
                    ],
                    "versions": [
                        {
                            "version": "bfc6444b57dc7186b6acc964705d7516cbaf3904",
                            "lessThan": "e6a2f5f845f50b0c4299bace5111f56d3390a090",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfc6444b57dc7186b6acc964705d7516cbaf3904",
                            "lessThan": "9dc325327babe7f159e84cbe9380a45342da0585",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58a5c93bd1a6e949267400080f07e57ffe05ec34",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e2ecdddca80dd845df42376e4b0197fe97018ba2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "de7cffa53149c7b48bd1bb29b02390c9f05b7f41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.1.101",
                            "lessThan": "6.2",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.42",
                            "lessThan": "6.7",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.9.11",
                            "lessThan": "6.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpio/gpio-pca953x.c"
                    ],
                    "versions": [
                        {
                            "version": "6.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.10",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "7.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9.11"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e6a2f5f845f50b0c4299bace5111f56d3390a090"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9dc325327babe7f159e84cbe9380a45342da0585"
                }
            ],
            "title": "gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}