CVE-2024-26807

Kernel crash via runtime PM pointer confusion

Published Apr 4, 2024 · Updated Aug 5, 2026

Memory corruption in the cadence-quadspi driver in affected Linux kernels allows local users to crash the kernel during runtime resume. The runtime PM hooks treat cqspi_st private data returned by dev_get_drvdata() as a spi_controller pointer and pass it to controller resume code. Exposure requires a platform that uses the cadence-quadspi driver; the bad pointer can corrupt memory and has produced a kernel crash.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the cadence-quadspi driver in affected Linux kernels allows local users to crash the kernel during runtime resume. The runtime PM hooks treat cqspi_st private data returned by dev_get_drvdata() as a spi_controller pointer and pass it to controller resume code. Exposure requires a platform that uses the cadence-quadspi driver; the bad pointer can corrupt memory and has produced a kernel crash.

The record

CVE
CVE-2024-26807
Published
Apr 4, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1368dbc0a432acf9fc0dcb23bfe52d32ca4c09ab
  2. Affected versionversion=18cb554e9da81bc4eca653c17a0d65e8b5835c09
  3. Affected versionversion=2087e85bb66ee3652dafe732bb9b9b896229eafc <03f1573c9587029730ca68503f5062105b122f61
  4. Affected versionversion=2087e85bb66ee3652dafe732bb9b9b896229eafc <32ce3bb57b6b402de2aec1012511e7ac4e7449dc
  5. Affected versionversion=2087e85bb66ee3652dafe732bb9b9b896229eafc <34e1d5c4407c78de0e3473e1fbf8fb74dbe66d03
  6. Affected versionversion=4.19.283 <4.20
  7. Affected versionversion=5.10.180 <5.11
  8. Affected versionversion=5.15.111 <5.16
  9. Affected versionversion=5.4.243 <5.5
  10. Affected versionversion=6.1.28 <6.1.140
  11. Affected versionversion=6.2.15 <6.3
  12. Affected versionversion=6.3.2 <6.4
  13. Affected versionversion=6.4
  14. Affected versionversion=6716203844bc8489af5e5564f0fa31e0c094a7ff
  15. Affected versionversion=79acf7fb856eade9c3d0cf00fd34a04bf5c43a1c <2c914aac9522f6e93822c18dff233d3e92399c81
  16. Affected versionversion=b24f1ecc8fe2ceefc14af02edb1744c246d87bf7
  17. Affected versionversion=d453f25faf681799d636fe9d6899ad91c45aa11e
  18. Affected versionversion=e3f9fc9a4f1499cc9e1bad4482d377494e367b3d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1368dbc0a432acf9fc0dcb23bfe52d32ca4c09ab; version=18cb554e9da81bc4eca653c17a0d65e8b5835c09; version=2087e85bb66ee3652dafe732bb9b9b896229eafc <03f1573c9587029730ca68503f5062105b122f61; version=2087e85bb66ee3652dafe732bb9b9b896229eafc <32ce3bb57b6b402de2aec1012511e7ac4e7449dc; version=2087e85bb66ee3652dafe732bb9b9b896229eafc <34e1d5c4407c78de0e3473e1fbf8fb74dbe66d03; version=4.19.283 <4.20; version=5.10.180 <5.11; version=5.15.111 <5.16; version=5.4.243 <5.5; version=6.1.28 <6.1.140; version=6.2.15 <6.3; version=6.3.2 <6.4; version=6.4; version=6716203844bc8489af5e5564f0fa31e0c094a7ff; version=79acf7fb856eade9c3d0cf00fd34a04bf5c43a1c <2c914aac9522f6e93822c18dff233d3e92399c81; version=b24f1ecc8fe2ceefc14af02edb1744c246d87bf7; version=d453f25faf681799d636fe9d6899ad91c45aa11e; version=e3f9fc9a4f1499cc9e1bad4482d377494e367b3d

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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