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Vulnerability · Published Dec 24, 2025 · Assigned by Linux

CVE-2023-54072ALSA: pcm: Fix potential data race at PCM memory allocation helpers

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 89.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.52-1DEBIAN-CVE-2023-54072
Debian:13linux6.4.4-1DEBIAN-CVE-2023-54072
Debian:14linux6.4.4-1DEBIAN-CVE-2023-54072
Ubuntu:22.04:LTSlinux5.15.0-91.101UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-aws5.15.0-1051.56UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure5.15.0-1053.61UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1053.61.1UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gcp5.15.0-1048.56UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gke5.15.0-1048.53UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1034.40UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-ibm5.15.0-1044.47UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1046.52UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-kvm5.15.0-1048.53UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-91.101UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1042.42UBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1020.20UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1007.7UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oracle5.15.0-1049.55UBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-raspi5.15.0-1044.47UBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54072
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1027.31UBUNTU-CVE-2023-54072

Affected products (as reported)

VendorProductVersions
Linux Linux 95b30a4312545f2dde9db12bf6a425f35d5a0d77 – before 7e1d1456c8db9949459c5a24e8845cfe92430b0fd4cfb30fce03093ad944e0b44bd8f40bdad5330e – before 7e11c58b2620a22c67a5ae28d64ce383890ee9f4d4cfb30fce03093ad944e0b44bd8f40bdad5330e – before a0ab49e7a758b488b2090171a75d50735c0876f6d4cfb30fce03093ad944e0b44bd8f40bdad5330e – before 3eb4e47a94e3f76521d7d344696db61e6a9619c7d4cfb30fce03093ad944e0b44bd8f40bdad5330e – before 773ccad902f67583a58b5650a2f8d8daf2e76facd4cfb30fce03093ad944e0b44bd8f40bdad5330e – before bd55842ed998a622ba6611fe59b3358c9f76773d
Linux Linux 5.6

References