CVE-2023-54072 (GCVE-0-2023-54072)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:23 – Updated: 2026-05-11 19:54
VLAI
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
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted 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)
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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)
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Show details on NVD website
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      "cve": "CVE-2023-54072",
      "id": "CVE-2023-54072",
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      "product_status:fixed": "399",
      "product_status:known_affected": "66",
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      "source": "Red Hat CSAF VEX",
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      "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",
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}



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