CVE-2025-71192 (GCVE-0-2025-71192)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:00 – Updated: 2026-02-09 08:36
VLAI?
Title
ALSA: ac97: fix a double free in snd_ac97_controller_register()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: ac97: fix a double free in snd_ac97_controller_register()
If ac97_add_adapter() fails, put_device() is the correct way to drop
the device reference. kfree() is not required.
Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do
the cleanup.
Found by code review.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
74426fbff66eea8e8d1f42c8238c268d1e63a832 , < c80f9b3349a99a9d5b295f5bbc23f544c5995ad7
(git)
Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < 21f8bc5179bed91c3f946adb5e55d717b891960c (git) Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < fcc04c92cbb5497ce67c58dd2f0001bb87f40396 (git) Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < cb73d37ac18bc1716690ff5255a0ef1952827e9e (git) Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < 830988b6cf197e6dcffdfe2008c5738e6c6c3c0f (git) |
||
{
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"programFiles": [
"sound/ac97/bus.c"
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"vendor": "Linux",
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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"version": "6.1.161",
"versionType": "semver"
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"version": "6.6.121",
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{
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"version": "6.12.66",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
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"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ac97: fix a double free in snd_ac97_controller_register()\n\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\nthe device reference. kfree() is not required.\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\nthe cleanup.\n\nFound by code review."
}
],
"providerMetadata": {
"dateUpdated": "2026-02-09T08:36:17.217Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7"
},
{
"url": "https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c"
},
{
"url": "https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396"
},
{
"url": "https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e"
},
{
"url": "https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f"
}
],
"title": "ALSA: ac97: fix a double free in snd_ac97_controller_register()",
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-71192",
"datePublished": "2026-02-04T16:00:23.044Z",
"dateReserved": "2026-01-31T11:36:51.189Z",
"dateUpdated": "2026-02-09T08:36:17.217Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-71192\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-04T16:16:18.770\",\"lastModified\":\"2026-02-04T16:33:44.537\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nALSA: ac97: fix a double free in snd_ac97_controller_register()\\n\\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\\nthe device reference. kfree() is not required.\\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\\nthe cleanup.\\n\\nFound by code review.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396\",\"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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