CVE-2025-68789 (GCVE-0-2025-68789)
Vulnerability from cvelistv5 – Published: 2026-01-13 15:29 – Updated: 2026-01-13 15:29
VLAI?
Title
hwmon: (ibmpex) fix use-after-free in high/low store
Summary
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (ibmpex) fix use-after-free in high/low store
The ibmpex_high_low_store() function retrieves driver data using
dev_get_drvdata() and uses it without validation. This creates a race
condition where the sysfs callback can be invoked after the data
structure is freed, leading to use-after-free.
Fix by adding a NULL check after dev_get_drvdata(), and reordering
operations in the deletion path to prevent TOCTOU.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 533ead425f8109b02fecc7e72d612b8898ec347a
(git)
Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < fa37adcf1d564ef58b9dfb01b6c36d35c5294bad (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 68d62e5bebbd118b763e8bb210d5cf2198ef450c (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 5aa2139201667c1f644601e4529c4acd6bf8db5a (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 6946c726c3f4c36f0f049e6f97e88c510b15f65d (git) |
||
{
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"programFiles": [
"drivers/hwmon/ibmpex.c"
],
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{
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.24"
},
{
"lessThan": "2.6.24",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.1.160",
"versionType": "semver"
},
{
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"version": "6.6.120",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19-rc2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
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"vulnerable": true
},
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ibmpex) fix use-after-free in high/low store\n\nThe ibmpex_high_low_store() function retrieves driver data using\ndev_get_drvdata() and uses it without validation. This creates a race\ncondition where the sysfs callback can be invoked after the data\nstructure is freed, leading to use-after-free.\n\nFix by adding a NULL check after dev_get_drvdata(), and reordering\noperations in the deletion path to prevent TOCTOU."
}
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"providerMetadata": {
"dateUpdated": "2026-01-13T15:29:02.079Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
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{
"url": "https://git.kernel.org/stable/c/533ead425f8109b02fecc7e72d612b8898ec347a"
},
{
"url": "https://git.kernel.org/stable/c/fa37adcf1d564ef58b9dfb01b6c36d35c5294bad"
},
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"url": "https://git.kernel.org/stable/c/68d62e5bebbd118b763e8bb210d5cf2198ef450c"
},
{
"url": "https://git.kernel.org/stable/c/5aa2139201667c1f644601e4529c4acd6bf8db5a"
},
{
"url": "https://git.kernel.org/stable/c/6946c726c3f4c36f0f049e6f97e88c510b15f65d"
}
],
"title": "hwmon: (ibmpex) fix use-after-free in high/low store",
"x_generator": {
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68789",
"datePublished": "2026-01-13T15:29:02.079Z",
"dateReserved": "2025-12-24T10:30:51.037Z",
"dateUpdated": "2026-01-13T15:29:02.079Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-68789\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-01-13T16:15:58.750\",\"lastModified\":\"2026-01-13T16:15:58.750\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nhwmon: (ibmpex) fix use-after-free in high/low store\\n\\nThe ibmpex_high_low_store() function retrieves driver data using\\ndev_get_drvdata() and uses it without validation. This creates a race\\ncondition where the sysfs callback can be invoked after the data\\nstructure is freed, leading to use-after-free.\\n\\nFix by adding a NULL check after dev_get_drvdata(), and reordering\\noperations in the deletion path to prevent TOCTOU.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/533ead425f8109b02fecc7e72d612b8898ec347a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5aa2139201667c1f644601e4529c4acd6bf8db5a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/68d62e5bebbd118b763e8bb210d5cf2198ef450c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6946c726c3f4c36f0f049e6f97e88c510b15f65d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fa37adcf1d564ef58b9dfb01b6c36d35c5294bad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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