Files
vuln-cve/data/2026/89xxx/CVE-2026-89936.json
T

248 lines
12 KiB
JSON

{
"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": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "5.10.270"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "5.15.221"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.1.188"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.6.157"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.12.110"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.18.51"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "7.2.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "7.3"
}
]
}
]
}
],
"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",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}