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CVE Record

CVE-2022-48951: ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx()

In the Linux kernel, the following vulnerability has been resolved: ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx() The bounds checks in snd_soc_put_volsw_sx() are only being applied to the first channel, meaning it is possible to write out of bounds values to the second channel in stereo controls. Add appropriate checks.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel sound subsystem flaw. A bounds check was missing for the second channel of some stereo audio controls, allowing an out-of-range value to be written. The sources do not provide CVSS, exploitation evidence, or business impact details, so urgency should be based on kernel exposure and vendor guidance.

Executive priority

Treat as a kernel maintenance item with uncertain severity. It does not currently justify emergency response based on the supplied evidence, but affected Linux systems should receive vendor-supported kernel updates during normal or accelerated patch cycles depending on asset criticality.

Technical view

The issue is in snd_soc_put_volsw_sx() in Linux ASoC operations. Existing bounds checks applied only to the first channel, leaving the second channel in stereo controls insufficiently validated. Kernel stable commits add the missing checks. The source data lists affected Linux kernel versions and fixing commits, but not exploit prerequisites or impact severity.

Likely exposure

Exposure is limited to Linux systems running affected kernel versions or matching affected commits. Relevance is highest where the ASoC audio subsystem and stereo mixer controls are present. The provided sources do not identify specific distributions, devices, or configurations beyond Linux kernel version data.

Exploitation context

No active exploitation is supported by the provided sources. KEV is false, and the bundle cites no public exploit, attack chain, or weaponization. The available description indicates an out-of-bounds value write condition, but does not state whether exploitation is local, remote, privileged, or practical.

Researcher notes

The record lacks CVSS, CWE, exploitability details, and distribution mapping. Analysis should stay tied to the ASoC snd_soc_put_volsw_sx() bounds-check defect and the listed stable commits. Avoid assuming impact beyond the stated second-channel out-of-bounds value write.

Mitigation direction

  • Check Linux distribution advisories for fixed kernel packages.
  • Update affected kernels to versions containing the referenced stable fixes.
  • Prioritize systems with ASoC audio functionality enabled or exposed.
  • Track vendor guidance because the source bundle does not name compensating controls.

Validation and detection

  • Inventory Linux kernel versions across managed assets.
  • Compare running kernels against the affected version and commit data.
  • Confirm installed kernel changelogs include the referenced stable commits.
  • Review vendor advisories for distribution-specific backport identifiers.
Prepared
Confidence
medium
Sources
10

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2022-48951 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
1ADP providers
9Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux9e5c40b5706d8aae2cf70bd7e01f0b4575a642d0, 4977491e4b3aad8567f57e2a9992d251410c1db3, 9a12fcbf3c622f9bf6b110a873d62b0cba93972e, c33402b056de61104b6146dedbe138ca8d7ec62b, 038f8b7caa74d29e020949a43ca368c93f6b29b9, e8e07c5e25a29e2a6f119fd947f55d7a55eb8a13, 4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e, 4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e, ef6cd9eeb38062a145802b7b56be7ae1090e165eunaffected
LinuxLinux5.17, 0, 4.9.337, 4.14.303, 4.19.270, 5.4.228, 5.10.160, 5.15.84, 6.0.14, 6.1affected
Weakness

CWE details

No CWE listed

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