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.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32 Patch
- git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd Patch
- git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef Patch
- git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205 Patch
- git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56 Patch
- git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf Patch
- git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716 Patch
- git.kernel.org/stable/c/f14bd323eec4b4f0ef662520ec852e593ece1d4c Patch
- cert-portal.siemens.com/productcert/html/ssa-784472.html
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 8 · as of 14 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.