CVE-2026-90196Hinoki check available

Unsafe allocation via unchecked topology volume ranges

Published Sep 17, 2026 · Updated Sep 17, 2026

Range validation errors in Linux SOF topology loading allow attackers to cause unsafe allocation and indexing via crafted mixer data. In sound/soc/sof/topology.c, sof_control_load_volume stores unchecked mixer bounds in signed fields and passes max + 1 through an int allocation argument without rejecting inverted ranges or maxima at or above INT_MAX. Triggering requires SOF to load attacker-controlled topology data; Amazon Linux assesses high local privileges, but no specific crash mode is documented.

CVSS severity5.6
Medium
EPSS probability0.21%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Range validation errors in Linux SOF topology loading allow attackers to cause unsafe allocation and indexing via crafted mixer data. In sound/soc/sof/topology.c, sof_control_load_volume stores unchecked mixer bounds in signed fields and passes max + 1 through an int allocation argument without rejecting inverted ranges or maxima at or above INT_MAX. Triggering requires SOF to load attacker-controlled topology data; Amazon Linux assesses high local privileges, but no specific crash mode is documented.

The record

CVE
CVE-2026-90196
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <72d0b77412aef2cec554cc84e176658f2a48dafa
  2. Affected versionversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <8e1d63f5e272061208455b5aa4cc0d5bcbe5c1a8
  3. Affected versionversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <992e130b888699d18da901b593d7a0fb75041a03
  4. Affected versionversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <a698e4a60fa54268a38f4e66378851a196cb139b
  5. Affected versionversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <cd63a1eb677e9548ba2d512be5dac4cb474ae145
  6. Affected versionversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <d2f41287b51a3261d447ae38000f7a6f5860663a
  7. Affected versionversion=5.2

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <72d0b77412aef2cec554cc84e176658f2a48dafa; version=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <8e1d63f5e272061208455b5aa4cc0d5bcbe5c1a8; version=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <992e130b888699d18da901b593d7a0fb75041a03; version=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <a698e4a60fa54268a38f4e66378851a196cb139b; version=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <cd63a1eb677e9548ba2d512be5dac4cb474ae145; version=311ce4fe7637d96608b6e57bf9ebbd8aabcf429e <d2f41287b51a3261d447ae38000f7a6f5860663a; version=5.2

Published CVSS scores

5.6Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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