Service interruption via unchecked stereo second channel
Published Oct 21, 2024 · Updated May 23, 2026
Improper input validation in the Linux kernel ASoC subsystem allows local users to interrupt service via crafted stereo-control values. The snd_soc_put_volsw_sx() path checks the first channel against the control's advertised range but accepts an unchecked second-channel value in stereo controls. Low-privilege local access is required; SUSE rates the consequence as availability-only, while published materials do not identify whether interruption manifests as a hang, crash, or other failure.
Summary
What happened
Improper input validation in the Linux kernel ASoC subsystem allows local users to interrupt service via crafted stereo-control values. The snd_soc_put_volsw_sx() path checks the first channel against the control's advertised range but accepts an unchecked second-channel value in stereo controls. Low-privilege local access is required; SUSE rates the consequence as availability-only, while published materials do not identify whether interruption manifests as a hang, crash, or other failure.
The record
- CVE
- CVE-2022-48951
- Published
- Oct 21, 2024
- Updated
- May 23, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 21, 2024CVE publishedPublication date reported by the CVE source.
- May 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=038f8b7caa74d29e020949a43ca368c93f6b29b9 <50b5f6d4d9d2d69a7498c44fd8b26e13d73d3d98
- Affected versionversion=4.14.265 <4.14.303
- Affected versionversion=4.19.228 <4.19.270
- Affected versionversion=4.9.300 <4.9.337
- Affected versionversion=4977491e4b3aad8567f57e2a9992d251410c1db3 <cf1c225f1927891ae388562b78ced7840c3723b9
- Affected versionversion=4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e <1798b62d642e7b3d4ea3403914c3caf4e438465d
- Affected versionversion=4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e <97eea946b93961fffd29448dcda7398d0d51c4b2
- Affected versionversion=5.10.99 <5.10.160
- Affected versionversion=5.15.22 <5.15.84
- Affected versionversion=5.16.8 <5.17
- Affected versionversion=5.17
- Affected versionversion=5.4.178 <5.4.228
- Affected versionversion=9a12fcbf3c622f9bf6b110a873d62b0cba93972e <18a168d85eadcfd45f015b5ecd2a97801b959e43
- Affected versionversion=9e5c40b5706d8aae2cf70bd7e01f0b4575a642d0 <56288987843c3cb343e81e5fa51549cbaf541bd0
- Affected versionversion=c33402b056de61104b6146dedbe138ca8d7ec62b <9796d07c753164b7e6b0d7ef23fb4482840a9ef8
- Affected versionversion=e8e07c5e25a29e2a6f119fd947f55d7a55eb8a13 <cf611d786796ec33da09d8c83d7d7f4e557b27de
- Affected versionversion=ef6cd9eeb38062a145802b7b56be7ae1090e165e
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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