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Fencer Intel
high 7.8

CVE-2025-68347 json

ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

published 10mo ago modified 21d ago also EUVD-2025-205107

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

The DSP event handling code in hwdep_read() could write more bytes to the user buffer than requested, when a user provides a buffer smaller than the event header size (8 bytes).

Fix by using min_t() to clamp the copy size, This ensures we never copy more than the user requested.

Patch / fix

  • Linux Linux 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19
  • linux Debian 12 6.1.162-1
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.13-1

debian advisories DEBIAN-CVE-2025-68347

  • linux Ubuntu 24.04 LTS 6.8.0-110.110
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1054.57
  • linux-gcp Ubuntu 25.10 6.17.0-1009.9
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1050.56
  • linux-ibm Ubuntu 24.04 LTS 6.8.0-1051.51

ubuntu advisories UBUNTU-CVE-2025-68347

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-rt RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.126.1.rt7.467.el8_10

red hat advisories RHSA-2026:77301RHSA-2026:77216RHSA-2026:21745RHSA-2026:21706

  • kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1.21.16
  • kernel-rt Linux Micro 6.2 6.12.0-160000.9.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.9.1

suse advisories SUSE-SU-2026:20845-1SUSE-SU-2026:20876-1SUSE-SU-2026:20477-1SUSE-SU-2026:20498-1SUSE-SU-2026:20207-1SUSE-SU-2026:20220-1

  • kernel-source-longterm openSUSE Tumbleweed 6.18.16-1.1
  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.9.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.9.1

opensuse advisories openSUSE-SU-2026:10301-1openSUSE-SU-2026:20145-1openSUSE-SU-2026:10039-1

  • kernel AlmaLinux 8 4.18.0-553.126.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.126.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.126.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.126.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.126.1.el8_10

almalinux advisories ALSA-2026:21706ALSA-2026:21745

  • kernel-rt Rocky Linux 8 4.18.0-553.126.1.rt7.467.el8_10
  • kernel Rocky Linux 8 4.18.0-553.126.1.el8_10

rocky linux advisories RLSA-2026:21745RLSA-2026:21706

  • kernel Azure Linux 3.0 6.6.121.1-1

azure linux advisories AZL-73096

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Is CVE-2025-68347 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-68347 updated cvss 7.1

kernel: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.126.1.el8_10, kernel 4.18.0-553.126.1.el8_10, bpftool 4.18.0-553.126.1.el8_10, kernel-core 4.18.0-553.126.1.el8_10, kernel-tools 4.18.0-553.126.1.el8_10, python3-perf 4.18.0-553.126.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:21706
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.220.1.el8_6, kernel 4.18.0-372.220.1.el8_6, bpftool 4.18.0-372.220.1.el8_6, kernel-core 4.18.0-372.220.1.el8_6, kernel-tools 4.18.0-372.220.1.el8_6, python3-perf 4.18.0-372.220.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:77216
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.172.1.el8_8, kernel 4.18.0-477.172.1.el8_8, bpftool 4.18.0-477.172.1.el8_8, kernel-core 4.18.0-477.172.1.el8_8, kernel-tools 4.18.0-477.172.1.el8_8, python3-perf 4.18.0-477.172.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:77301
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.220.1.el8_6, kernel 4.18.0-372.220.1.el8_6, bpftool 4.18.0-372.220.1.el8_6, kernel-core 4.18.0-372.220.1.el8_6, kernel-tools 4.18.0-372.220.1.el8_6, python3-perf 4.18.0-372.220.1.el8_6, +15 more
    fixed: vendor fix RHSA-2026:77216
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.172.1.el8_8, kernel 4.18.0-477.172.1.el8_8, bpftool 4.18.0-477.172.1.el8_8, kernel-core 4.18.0-477.172.1.el8_8, kernel-tools 4.18.0-477.172.1.el8_8, python3-perf 4.18.0-477.172.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:77301
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.126.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.126.1.el8_10
    fixed: vendor fix RHSA-2026:21706
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-kvm 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-core 4.18.0-553.126.1.rt7.467.el8_10, +4 more Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-core 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-debug-modules 4.18.0-553.126.1.rt7.467.el8_10, kernel-rt-modules-extra 4.18.0-553.126.1.rt7.467.el8_10, +2 more
    fixed: vendor fix RHSA-2026:21745
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
24d ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.