{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89936",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.776Z",
        "datePublished": "2026-09-16T10:32:25.608Z",
        "dateUpdated": "2026-10-19T08:55:10.788Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:55:10.788Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: dac: m62332: Fix regulator reference count imbalance\n\nm62332_set_value() enables the Vcc regulator on every write of a\nnon-zero value and disables it on every write of zero, without tracking\nthe channel's current state. Because the regulator is reference counted,\nchanging a channel directly from one non-zero value to another enables\nit more than once, while a later write of zero disables it only once.\nThe reference count never returns to zero and the regulator is left\nenabled indefinitely.\n\nOnly enable the regulator on the transition from zero to non-zero, and\nonly disable it on the transition from non-zero to zero, using the\npreviously stored channel value to detect the edge. Balance the\nregulator on the I2C error path so the reference count stays consistent\nif the write fails."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iio/dac/m62332.c"
                    ],
                    "versions": [
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "bac0ed8bee651aa841375edf72c6ab1d10ac80c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "9263b9ad968a563337a60e0eb66e35186e1faf9a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "1d3a7d7dd3adee19e00be2b2237140f0fe169484",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "f5acb824277a97a5210c454872202bf7f08c75d4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "ae18d2d2ef27a4d04fda6e30c23774513dc9be1e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "08ac8d2976d57aa943d64e351c4d0bd8bb0c6de9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "9fe22f563b2a0fdb11fd3711a8c39c023629c08a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b87b0c0f81e8d11c881b726b886b7502ab67d884",
                            "lessThan": "a130404ce0b69ca1438126bd81c1985d3b4d2e6f",
                            "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/iio/dac/m62332.c"
                    ],
                    "versions": [
                        {
                            "version": "4.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.2",
                            "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": "6.18.51",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "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": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
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                                },
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                                    "versionStartIncluding": "4.2",
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                                    "versionStartIncluding": "4.2",
                                    "versionEndExcluding": "7.3"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/bac0ed8bee651aa841375edf72c6ab1d10ac80c6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9263b9ad968a563337a60e0eb66e35186e1faf9a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1d3a7d7dd3adee19e00be2b2237140f0fe169484"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f5acb824277a97a5210c454872202bf7f08c75d4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ae18d2d2ef27a4d04fda6e30c23774513dc9be1e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/08ac8d2976d57aa943d64e351c4d0bd8bb0c6de9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9fe22f563b2a0fdb11fd3711a8c39c023629c08a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a130404ce0b69ca1438126bd81c1985d3b4d2e6f"
                }
            ],
            "title": "iio: dac: m62332: Fix regulator reference count imbalance",
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}