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CVE-2026-46018— ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.04% · P11

Affected Version Matrix 22

VendorProductVersion RangeStatus
LinuxLinux4fa0e81b83503900be277e6273a79651b375e288< 5436bc1b07d4656f99412dc72871d250d7d55205affected
4fa0e81b83503900be277e6273a79651b375e288< 0da05fedf5e1966b7e7d389866cb86fcf09f4b32affected
4fa0e81b83503900be277e6273a79651b375e288< f14bd323eec4b4f0ef662520ec852e593ece1d4caffected
4fa0e81b83503900be277e6273a79651b375e288< ab5ba9fd138758ddc50222264ff246b31e397abfaffected
4fa0e81b83503900be277e6273a79651b375e288< ba036305323814ec1f8655313b2fa6a0f7048716affected
4fa0e81b83503900be277e6273a79651b375e288< 4d7893a137eadb6163ea4298bf67d74b811d76efaffected
4fa0e81b83503900be277e6273a79651b375e288< a0b78639ef09b2e77974a3de3b1c07f6de3c5e56affected
4fa0e81b83503900be277e6273a79651b375e288< 3c318f97dcc50b2e0556a1813bd6958678e881fdaffected
… +14 more rows
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I. Basic Information for CVE-2026-46018

Vulnerability Information
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Vulnerability Title
ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于UAC2速率解析在达到MAX_NR_RATES后未停止整个解析过程，可能导致持续打印错误信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 4fa0e81b83503900be277e6273a79651b375e288 ~ 5436bc1b07d4656f99412dc72871d250d7d55205 -
LinuxLinux 3.3 -

II. Public POCs for CVE-2026-46018

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III. Intelligence Information for CVE-2026-46018

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Patches & Fixes for CVE-2026-46018 (8)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-460587.8 HIGHmedia: amphion: Fix race between m2m job_abort and device_run
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46018

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