CVE-2022-49570

GPIO misconfiguration via truncated bitmap shift

Published Feb 26, 2025 · Updated May 11, 2026

Integer overflow in Linux 5.14 through affected 5.x branches allows local users to misconfigure Xilinx GPIO devices with over 32 pins. xgpio_set_value32 shifts a 32-bit u32 value before storing it in an unsigned-long bitmap, truncating bits intended for the upper 32-pin bank. Low-privilege local access and a Xilinx GPIO controller wider than 32 pins are required; the upper pins cannot be configured correctly.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Linux 5.14 through affected 5.x branches allows local users to misconfigure Xilinx GPIO devices with over 32 pins. xgpio_set_value32 shifts a 32-bit u32 value before storing it in an unsigned-long bitmap, truncating bits intended for the upper 32-pin bank. Low-privilege local access and a Xilinx GPIO controller wider than 32 pins are required; the upper pins cannot be configured correctly.

The record

CVE
CVE-2022-49570
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190
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=02b3f84d9080b0f4297f31258307f626a43faba5 <32c094a09d5829ad9b02cdf667569aefa8de0ea6
  2. Affected versionversion=02b3f84d9080b0f4297f31258307f626a43faba5 <6f16a5390640807dde420ee5ccbc4c95577aea6a
  3. Affected versionversion=02b3f84d9080b0f4297f31258307f626a43faba5 <e129e5486b981d324057e6986059f852658b0d00
  4. Affected versionversion=5.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=02b3f84d9080b0f4297f31258307f626a43faba5 <32c094a09d5829ad9b02cdf667569aefa8de0ea6; version=02b3f84d9080b0f4297f31258307f626a43faba5 <6f16a5390640807dde420ee5ccbc4c95577aea6a; version=02b3f84d9080b0f4297f31258307f626a43faba5 <e129e5486b981d324057e6986059f852658b0d00; version=5.14

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA ADP VulnrichmentCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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-190Integer Overflow or Wraparound

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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