CVE-2023-54072ALSA: pcm: Fix potential data race at PCM memory allocation helpers
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 95b30a4312545f2dde9db12bf6a425f35d5a0d77 builds before 7e1d1456c8db9949459c5a24e8845cfe92430b0f; from d4cfb30fce03093ad944e0b44bd8f40bdad5330e before 7e11c58b2620a22c67a5ae28d64ce383890ee9f4; from d4cfb30fce03093ad944e0b44bd8f40bdad5330e before a0ab49e7a758b488b2090171a75d50735c0876f6; from d4cfb30fce03093ad944e0b44bd8f40bdad5330e before 3eb4e47a94e3f76521d7d344696db61e6a9619c7; from d4cfb30fce03093ad944e0b44bd8f40bdad5330e before 773ccad902f67583a58b5650a2f8d8daf2e76fac; from d4cfb30fce03093ad944e0b44bd8f40bdad5330e before bd55842ed998a622ba6611fe59b3358c9f76773d | CNA record |
References
- https://git.kernel.org/stable/c/7e1d1456c8db9949459c5a24e8845cfe92430b0f
- https://git.kernel.org/stable/c/7e11c58b2620a22c67a5ae28d64ce383890ee9f4
- https://git.kernel.org/stable/c/a0ab49e7a758b488b2090171a75d50735c0876f6
- https://git.kernel.org/stable/c/3eb4e47a94e3f76521d7d344696db61e6a9619c7
- https://git.kernel.org/stable/c/773ccad902f67583a58b5650a2f8d8daf2e76fac
- https://git.kernel.org/stable/c/bd55842ed998a622ba6611fe59b3358c9f76773d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.