CVE-2026-46018

Description

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

• https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd
• https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef
• https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56
• https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf
• https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716