CVE-2026-46018
MEDIUMALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES
Title source: cnaDescription
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES parse_uac2_sample_rate_range() caps the number of enumerated rates at MAX_NR_RATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional triplets continues parsing the remaining triplets and repeatedly prints "invalid uac2 rates" while probe still holds register_mutex. Stop the whole parse once the cap is reached and return the number of rates collected so far.
References (8)
Core 8
Core References
Scores
CVSS v3
5.5
EPSS
0.0018
EPSS Percentile
7.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (31)
linux/Kernel
3.3.0 - 5.10.258linux
linux/Kernel
5.11.0 - 5.15.209linux
linux/Kernel
5.16.0 - 6.1.175linux
linux/Kernel
6.13.0 - 6.18.27linux
linux/Kernel
6.19.0 - 7.0.4linux
linux/Kernel
6.2.0 - 6.6.140linux
linux/Kernel
6.7.0 - 6.12.86linux
Linux/Linux
< 3.3
Linux/Linux
3.0.81 - 3.1
Linux/Linux
3.2.47 - 3.3
... and 21 more
Published
May 27, 2026
Tracked Since
May 27, 2026