CVE-2022-49251

Kernel memory disclosure and crash via enum access

Published Feb 26, 2025 · Updated May 11, 2026

Out-of-bounds read in the Linux kernel ASoC LPASS VA-macro codec driver allows local users to disclose kernel memory or interrupt service. The va_macro_dec_mode_get and va_macro_dec_mode_put callbacks access an enumerated control through integer.value, whose long-sized elements overrun the enum-sized storage on 64-bit platforms such as AArch64. Reaching the flaw requires local access to the affected Qualcomm audio control path; the resulting read can expose kernel data or crash the system.

CVSS severity7.1
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Linux kernel ASoC LPASS VA-macro codec driver allows local users to disclose kernel memory or interrupt service. The va_macro_dec_mode_get and va_macro_dec_mode_put callbacks access an enumerated control through integer.value, whose long-sized elements overrun the enum-sized storage on 64-bit platforms such as AArch64. Reaching the flaw requires local access to the affected Qualcomm audio control path; the resulting read can expose kernel data or crash the system.

The record

CVE
CVE-2022-49251
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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.

  1. Affected versionversion=5.11
  2. Affected versionversion=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <0ea5eff7c6063a8f124188424f8e4c6727f35051
  3. Affected versionversion=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <4a799972a283ab4ec031041304d7e2d34e1a16eb
  4. Affected versionversion=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <966408e37d84b762d11978b7bfb03fff0c6222ad
  5. Affected versionversion=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <c0099bbf8bc85d30c4cf38220fca3c8d4253fa7f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <0ea5eff7c6063a8f124188424f8e4c6727f35051; version=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <4a799972a283ab4ec031041304d7e2d34e1a16eb; version=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <966408e37d84b762d11978b7bfb03fff0c6222ad; version=908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f <c0099bbf8bc85d30c4cf38220fca3c8d4253fa7f

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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