CVE-2023-54072 (GCVE-0-2023-54072)
Vulnerability from cvelistv5 – Published: 2025-12-24 12:23 – Updated: 2026-05-11 19:54
VLAI
EPSS
VEX
Title
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
The PCM memory allocation helpers have a sanity check against too many
buffer allocations. However, the check is performed without a proper
lock and the allocation isn't serialized; this allows user to allocate
more memories than predefined max size.
Practically seen, this isn't really a big problem, as it's more or
less some "soft limit" as a sanity check, and it's not possible to
allocate unlimitedly. But it's still better to address this for more
consistent behavior.
The patch covers the size check in do_alloc_pages() with the
card->memory_mutex, and increases the allocated size there for
preventing the further overflow. When the actual allocation fails,
the size is decreased accordingly.
Severity
No CVSS data available.
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
95b30a4312545f2dde9db12bf6a425f35d5a0d77 , < 7e1d1456c8db9949459c5a24e8845cfe92430b0f
(git)
Affected: d4cfb30fce03093ad944e0b44bd8f40bdad5330e , < 7e11c58b2620a22c67a5ae28d64ce383890ee9f4 (git) Affected: d4cfb30fce03093ad944e0b44bd8f40bdad5330e , < a0ab49e7a758b488b2090171a75d50735c0876f6 (git) Affected: d4cfb30fce03093ad944e0b44bd8f40bdad5330e , < 3eb4e47a94e3f76521d7d344696db61e6a9619c7 (git) Affected: d4cfb30fce03093ad944e0b44bd8f40bdad5330e , < 773ccad902f67583a58b5650a2f8d8daf2e76fac (git) Affected: d4cfb30fce03093ad944e0b44bd8f40bdad5330e , < bd55842ed998a622ba6611fe59b3358c9f76773d (git) |
guessed | |
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.193 , ≤ 5.10.* (semver) Unaffected: 5.15.129 , ≤ 5.15.* (semver) Unaffected: 6.1.39 , ≤ 6.1.* (semver) Unaffected: 6.4.4 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/core/pcm_memory.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"sound/core/pcm_memory.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"lessThan": "5.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.193",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.129",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.193",
"versionStartIncluding": "5.6",
"vulnerable": true
},
{
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},
{
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},
{
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: Fix potential data race at PCM memory allocation helpers\n\nThe PCM memory allocation helpers have a sanity check against too many\nbuffer allocations. However, the check is performed without a proper\nlock and the allocation isn\u0027t serialized; this allows user to allocate\nmore memories than predefined max size.\n\nPractically seen, this isn\u0027t really a big problem, as it\u0027s more or\nless some \"soft limit\" as a sanity check, and it\u0027s not possible to\nallocate unlimitedly. But it\u0027s still better to address this for more\nconsistent behavior.\n\nThe patch covers the size check in do_alloc_pages() with the\ncard-\u003ememory_mutex, and increases the allocated size there for\npreventing the further overflow. When the actual allocation fails,\nthe size is decreased accordingly."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:54:55.996Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7e1d1456c8db9949459c5a24e8845cfe92430b0f"
},
{
"url": "https://git.kernel.org/stable/c/7e11c58b2620a22c67a5ae28d64ce383890ee9f4"
},
{
"url": "https://git.kernel.org/stable/c/a0ab49e7a758b488b2090171a75d50735c0876f6"
},
{
"url": "https://git.kernel.org/stable/c/3eb4e47a94e3f76521d7d344696db61e6a9619c7"
},
{
"url": "https://git.kernel.org/stable/c/773ccad902f67583a58b5650a2f8d8daf2e76fac"
},
{
"url": "https://git.kernel.org/stable/c/bd55842ed998a622ba6611fe59b3358c9f76773d"
}
],
"title": "ALSA: pcm: Fix potential data race at PCM memory allocation helpers",
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"cveId": "CVE-2023-54072",
"datePublished": "2025-12-24T12:23:15.552Z",
"dateReserved": "2025-12-24T12:21:05.093Z",
"dateUpdated": "2026-05-11T19:54:55.996Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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"date": "2026-09-18",
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{
"status": "affected",
"version": "5.6"
},
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"lessThan": "5.6",
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"version": "0",
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},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
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"version": "6.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
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"version": "6.5",
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}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: Fix potential data race at PCM memory allocation helpers\n\nThe PCM memory allocation helpers have a sanity check against too many\nbuffer allocations. However, the check is performed without a proper\nlock and the allocation isn\u0027t serialized; this allows user to allocate\nmore memories than predefined max size.\n\nPractically seen, this isn\u0027t really a big problem, as it\u0027s more or\nless some \"soft limit\" as a sanity check, and it\u0027s not possible to\nallocate unlimitedly. But it\u0027s still better to address this for more\nconsistent behavior.\n\nThe patch covers the size check in do_alloc_pages() with the\ncard-\u003ememory_mutex, and increases the allocated size there for\npreventing the further overflow. When the actual allocation fails,\nthe size is decreased accordingly."
}
],
"id": "CVE-2023-54072",
"lastModified": "2026-06-17T06:46:45.230",
"metrics": {},
"published": "2025-12-24T13:16:09.050",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3eb4e47a94e3f76521d7d344696db61e6a9619c7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7e11c58b2620a22c67a5ae28d64ce383890ee9f4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7e1d1456c8db9949459c5a24e8845cfe92430b0f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a0ab49e7a758b488b2090171a75d50735c0876f6"
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-29T22:42:43+00:00",
"cve": "CVE-2023-54072",
"id": "CVE-2023-54072",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:fixed": "399",
"product_status:known_affected": "66",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Linux kernel: Denial of service or memory corruption due to a data race in ALSA PCM memory allocation",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54072.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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