CVE-2026-46018

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

Published

2026-05-27

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32
• https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd
• https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef
• https://git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205
• https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56

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