CVE-2026-99182
kernel: ASoC: SOF: ipc4-topology: Fix shift-out-of-bounds for aggregated ALH capture
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's Sound Open Firmware (SOF) audio subsystem. When handling aggregated audio capture configurations where the channel count is smaller than the number of aggregated devices, an integer underflow occurs in the IPC4 topology driver. A local user could trigger this condition by configuring a specific audio stream, causing an out-of-bounds bit shift that leads to a kernel crash and a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-1335 · Incorrect Bitwise Shift of Integer