CVE-2026-72008 (GCVE-0-2026-72008)
Vulnerability from cvelistv5
Published
2026-08-15 05:51
Modified
2026-08-17 05:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check
Should probe fail for HW_VOTER type power domains, this driver was
unconditionally trying to perform cleanup for DIRECT_CTL domains,
but only after checking if the target domain is powered on... with
the DIRECT_CTL scpsys_domain_is_on() code again.
And there's more: the scpsys_domain_is_on() function is also being
unconditionally used in the probe path, for any power domain that
has flag MTK_SCPD_KEEP_DEFAULT_OFF!
This bug was never experienced by anyone because the HWV domains
never failed probe, and because none of those is declared with the
aforementioned flag - but it's still something critical.
In order to fix this, add a check for MTCMOS Type and, based on
that, call the correct functions for an "is on" check, and also
do the same for the cleanup path, calling the correct functions
for the "power off" action.
For the latter, since there's a call to pm_genpd_remove() right
before calling power_off, be cautious and add a variation of the
power off functions (with a _internal suffix) for those to get a
pointer to scpsys_domain instead of one to generic_pm_domain as,
even if that's still working, this is way too much fragile and
would break at some point.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/pmdomain/mediatek/mtk-pm-domains.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "36c2d7728540252474752172027f0113028ab00c",
"status": "affected",
"version": "88914db077b6c2920b29a3ec76109a2fd3cf8d38",
"versionType": "git"
},
{
"lessThan": "a4876f11aa1d076802676e23f8af500706e780e3",
"status": "affected",
"version": "88914db077b6c2920b29a3ec76109a2fd3cf8d38",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/pmdomain/mediatek/mtk-pm-domains.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.19"
},
{
"lessThan": "6.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.5",
"versionStartIncluding": "6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2",
"versionStartIncluding": "6.19",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check\n\nShould probe fail for HW_VOTER type power domains, this driver was\nunconditionally trying to perform cleanup for DIRECT_CTL domains,\nbut only after checking if the target domain is powered on... with\nthe DIRECT_CTL scpsys_domain_is_on() code again.\n\nAnd there\u0027s more: the scpsys_domain_is_on() function is also being\nunconditionally used in the probe path, for any power domain that\nhas flag MTK_SCPD_KEEP_DEFAULT_OFF!\n\nThis bug was never experienced by anyone because the HWV domains\nnever failed probe, and because none of those is declared with the\naforementioned flag - but it\u0027s still something critical.\n\nIn order to fix this, add a check for MTCMOS Type and, based on\nthat, call the correct functions for an \"is on\" check, and also\ndo the same for the cleanup path, calling the correct functions\nfor the \"power off\" action.\n\nFor the latter, since there\u0027s a call to pm_genpd_remove() right\nbefore calling power_off, be cautious and add a variation of the\npower off functions (with a _internal suffix) for those to get a\npointer to scpsys_domain instead of one to generic_pm_domain as,\neven if that\u0027s still working, this is way too much fragile and\nwould break at some point."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:06:29.895Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/36c2d7728540252474752172027f0113028ab00c"
},
{
"url": "https://git.kernel.org/stable/c/a4876f11aa1d076802676e23f8af500706e780e3"
}
],
"title": "pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-72008",
"datePublished": "2026-08-15T05:51:38.102Z",
"dateReserved": "2026-08-09T03:40:39.899Z",
"dateUpdated": "2026-08-17T05:06:29.895Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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