CVE-2026-46018ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4fa0e81b83503900be277e6273a79651b375e288 before 5436bc1b07d4656f99412dc72871d250d7d55205; 4fa0e81b83503900be277e6273a79651b375e288 builds before 0da05fedf5e1966b7e7d389866cb86fcf09f4b32; from 4fa0e81b83503900be277e6273a79651b375e288 before f14bd323eec4b4f0ef662520ec852e593ece1d4c; from 4fa0e81b83503900be277e6273a79651b375e288 before ab5ba9fd138758ddc50222264ff246b31e397abf; from 4fa0e81b83503900be277e6273a79651b375e288 before ba036305323814ec1f8655313b2fa6a0f7048716; 4fa0e81b83503900be277e6273a79651b375e288 builds before 4d7893a137eadb6163ea4298bf67d74b811d76ef; from 4fa0e81b83503900be277e6273a79651b375e288 before a0b78639ef09b2e77974a3de3b1c07f6de3c5e56; 4fa0e81b83503900be277e6273a79651b375e288 builds before 3c318f97dcc50b2e0556a1813bd6958678e881fd; and 4 more ranges | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.0.81 before 3.1; from 3.2.47 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205patch
- https://git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32patch
- https://git.kernel.org/stable/c/f14bd323eec4b4f0ef662520ec852e593ece1d4cpatch
- https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abfpatch
- https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716patch
- https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76efpatch
- https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56patch
- https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fdpatch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.