CVE-2026-90295

Kernel memory corruption via stale driver-probe counter

Published Sep 17, 2026 · Updated Sep 17, 2026

Out-of-bounds writes in Linux imx6q cpufreq allow local users to corrupt kernel memory by unbinding and rebinding the driver. The imx6q_cpufreq_probe function retains the static soc_opp_count across probes and uses it to index a newly allocated imx6_soc_volt array, writing four bytes beyond its end. Triggering requires administrative driver-binding access on an affected i.MX6 system; the published reproduction demonstrates a kernel heap overwrite, not privilege escalation or arbitrary code execution.

CVSS severity3.4
Low
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds writes in Linux imx6q cpufreq allow local users to corrupt kernel memory by unbinding and rebinding the driver. The imx6q_cpufreq_probe function retains the static soc_opp_count across probes and uses it to index a newly allocated imx6_soc_volt array, writing four bytes beyond its end. Triggering requires administrative driver-binding access on an affected i.MX6 system; the published reproduction demonstrates a kernel heap overwrite, not privilege escalation or arbitrary code execution.

The record

CVE
CVE-2026-90295
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

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=3.14
  2. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <263a35331169390f7f9ccb51d74e668610199af4
  3. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <49f2f9b1d0cc76cf221306fc707703205bd27073
  4. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <55516986a3d81325c84f2d4ae9cd03116bc63599
  5. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <55864b26c22cbd4b2e0d36154a8c35931c2e133b
  6. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82
  7. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <aaa66e60c0e21d19993a95bc3718dc29eb2d3192
  8. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9
  9. Affected versionversion=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <c5135bc34ea37e9d19f758e61ac44415afb3891a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=3.14; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <263a35331169390f7f9ccb51d74e668610199af4; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <49f2f9b1d0cc76cf221306fc707703205bd27073; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <55516986a3d81325c84f2d4ae9cd03116bc63599; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <55864b26c22cbd4b2e0d36154a8c35931c2e133b; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <aaa66e60c0e21d19993a95bc3718dc29eb2d3192; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9; version=b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 <c5135bc34ea37e9d19f758e61ac44415afb3891a

Published CVSS scores

3.4SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
3.4Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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