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Vulnerability · Published Jan 5, 2026 · Assigned by Linux

CVE-2025-68753ALSA: firewire-motu: add bounds check in put_user loop for DSP events

High 7.1

In plain English

A high-severity out-of-bounds write 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 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 93.5% 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: firewire-motu: add bounds check in put_user loop for DSP events In the DSP event handling code, a put_user() loop copies event data. When the user buffer size is not aligned to 4 bytes, it could overwrite beyond the buffer boundary. Fix by adding a bounds check before put_user().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.162-1DEBIAN-CVE-2025-68753
Debian:13linux6.12.63-1DEBIAN-CVE-2025-68753
Debian:14linux6.17.13-1DEBIAN-CVE-2025-68753
Ubuntu:24.04:LTSlinux6.8.0-110.110UBUNTU-CVE-2025-68753
Ubuntu:25.10linux6.17.0-19.19UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-aws6.8.0-1052.55UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-aws6.17.0-1009.9UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1009.9~24.04.2UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure6.8.0-1054.60UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-azure6.17.0-1010.10UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1010.10~24.04.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gcp6.8.0-1054.57UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-gcp6.17.0-1009.9UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1009.9~24.04.3UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gke6.8.0-1050.56UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1037.40UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-19.19~24.04.2UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-ibm6.8.0-1051.51UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1051.51~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-110.110.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-110.110.1~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1051.54UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1018.18UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1051.54~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1051.54.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1022.22UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1017.17UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oracle6.8.0-1049.50UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-oracle6.17.0-1009.9UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1009.9~24.04.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1049.50~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-raspi6.8.0-1052.56UBUNTU-CVE-2025-68753
Ubuntu:25.10linux-raspi6.17.0-1010.10UBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68753
Ubuntu:25.10linux-realtime6.17.0-1008.9UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68753
Ubuntu:25.10linux-riscv6.17.0-19.19.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-19.19.1~24.04.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-68753
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-68753
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-68753

Affected products (as reported)

VendorProductVersions
Linux Linux 634ec0b2906efd46f6f57977e172aa3470aca432 – before ea2c921d9de6e32ca50cb817b9d57bb881be70de634ec0b2906efd46f6f57977e172aa3470aca432 – before 6d4f17782ce4facf3197e79707df411ee3d7b30a634ec0b2906efd46f6f57977e172aa3470aca432 – before 0d71b3c2ed742f1ccb3b0b7a61afb90c0251093f634ec0b2906efd46f6f57977e172aa3470aca432 – before df692cf2b601a54b34edfdb9e683d67483aa8ce1634ec0b2906efd46f6f57977e172aa3470aca432 – before 8f9e51cf2a2a43d0cd72d3dc0b5ccea3f639c187634ec0b2906efd46f6f57977e172aa3470aca432 – before 298e753880b6ea99ac30df34959a7a03b0878eed
Linux Linux 5.16

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References