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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2025-38078ALSA: pcm: Fix race of buffer access at PCM OSS layer

High 7.8

In plain English

A high-severity 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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 94.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix race of buffer access at PCM OSS layer The PCM OSS layer tries to clear the buffer with the silence data at initialization (or reconfiguration) of a stream with the explicit call of snd_pcm_format_set_silence() with runtime->dma_area. But this may lead to a UAF because the accessed runtime->dma_area might be freed concurrently, as it's performed outside the PCM ops. For avoiding it, move the code into the PCM core and perform it inside the buffer access lock, so that it won't be changed during the operation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.147-1DSA-5973-1
Debian:12linux6.1.147-1DEBIAN-CVE-2025-38078
Debian:13linux6.12.32-1DEBIAN-CVE-2025-38078
Debian:14linux6.12.32-1DEBIAN-CVE-2025-38078
Ubuntu:22.04:LTSlinux5.15.0-152.162UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux5.15.0-152.162USN-7704-1
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-aws5.15.0-1090.97UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-aws5.15.0-1090.97USN-7704-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1013.13~24.04.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1013.13~24.04.1USN-7769-3
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1094.103.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38078
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp5.15.0-1090.99UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp5.15.0-1090.99USN-7704-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1016.17~24.04.1USN-7769-1
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1016.17~24.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gke5.15.0-1087.93USN-7704-5
Ubuntu:22.04:LTSlinux-gke5.15.0-1087.93UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1073.81USN-7704-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1073.81UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-hwe-6.146.14.0-32.32~24.04.1USN-7769-3
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-ibm5.15.0-1084.87UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-ibm5.15.0-1084.87USN-7704-3
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1085.91USN-7704-3
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1085.91UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-kvm5.15.0-1086.91UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-kvm5.15.0-1086.91USN-7704-5
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-152.162USN-7704-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-152.162UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1085.86UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1085.86USN-7704-4
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1043.43UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1043.43USN-7704-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1032.32UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1032.32USN-7704-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1012.12USN-7771-1
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1012.12UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oracle5.15.0-1088.94UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oracle5.15.0-1088.94USN-7704-3
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1013.13~24.04.1UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1013.13~24.04.1USN-7789-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-raspi5.15.0-1084.87USN-7704-3
Ubuntu:22.04:LTSlinux-raspi5.15.0-1084.87UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-32.32.1~24.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38078
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38078
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1054.58USN-7704-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1054.58UBUNTU-CVE-2025-38078

Affected products (as reported)

VendorProductVersions
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before c0e05a76fc727929524ef24a19c302e6dd40233f1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 8170d8ec4efd0be352c14cb61f374e30fb0c2a251da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 10217da9644ae75cea7330f902c35fc5ba78bbbf1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before f3e14d706ec18faf19f5a6e75060e140fea05d4a1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 74d90875f3d43f3eff0e9861c4701418795d34551da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before bf85e49aaf3a3c5775ea87369ea5f159c2148db41da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before afa56c960fcb4db37f2e3399f28e9402e4e1f4701da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 93a81ca0657758b607c3f4ba889ae806be9beb73
Linux Linux 2.6.12

References