CVE-2023-52517

Data corruption via concurrent DMA FIFO reads

Published Mar 2, 2024 · Updated Aug 5, 2026

Race condition in the Linux sun6i SPI driver from 5.11 allows local users to corrupt received data during DMA-mode transfers. Its transfer-complete handler drains the receive FIFO while the DMA engine is still reading it, and the handler uses an unadjusted buffer pointer. Reachability requires the sun6i SPI controller and a DMA-mode receive transfer; the race corrupts data copied into the supplied receive buffer.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux sun6i SPI driver from 5.11 allows local users to corrupt received data during DMA-mode transfers. Its transfer-complete handler drains the receive FIFO while the DMA engine is still reading it, and the handler uses an unadjusted buffer pointer. Reachability requires the sun6i SPI controller and a DMA-mode receive transfer; the race corrupts data copied into the supplied receive buffer.

The record

CVE
CVE-2023-52517
Published
Mar 2, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 2, 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

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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=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <1f11f4202caf5710204d334fe63392052783876d
  2. Affected versionversion=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <36b29974a7ad2ff604c24ad348f940506c7b1209
  3. Affected versionversion=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <4e149d524678431638ff378ef6025e4e89b71097
  4. Affected versionversion=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f
  5. Affected versionversion=5.11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <1f11f4202caf5710204d334fe63392052783876d; version=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <36b29974a7ad2ff604c24ad348f940506c7b1209; version=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <4e149d524678431638ff378ef6025e4e89b71097; version=345980a3a5e5e1c99fc621e2ce878fb150ad2287 <bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f; version=5.11

Published CVSS scores

7.0NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8kernel.orgCVSS: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

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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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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