CVE-2022-49072

Kernel crash via premature GPIO IRQ access

Published Feb 26, 2025 · Updated May 23, 2026

A GPIO initialization race in the Linux kernel allows local users to crash the system by provoking an I2C device probe. The gpiochip_to_irq() path reads gc->irq.domain through the I2C interface before gpiochip_add_irqchip() finishes initializing the IRQ chip, so a competing probe dereferences NULL. Exploitation requires local low-privileged access and a susceptible GPIO/I2C initialization sequence; the reported consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A GPIO initialization race in the Linux kernel allows local users to crash the system by provoking an I2C device probe. The gpiochip_to_irq() path reads gc->irq.domain through the I2C interface before gpiochip_add_irqchip() finishes initializing the IRQ chip, so a competing probe dereferences NULL. Exploitation requires local low-privileged access and a susceptible GPIO/I2C initialization sequence; the reported consequence is a kernel crash.

The record

CVE
CVE-2022-49072
Published
Feb 26, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=44dfa46aaf7cf594ac89bc1a0c0e56c498b31269
  2. Affected versionversion=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <0912cf021fb5749372b3782611d8b1de4986c13a
  3. Affected versionversion=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <2c1fa3614795e2b24da1ba95de0b27b8f6ea4537
  4. Affected versionversion=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320
  5. Affected versionversion=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <7e88a50704b0c49ad3f2d11e8b963341cf68a89f
  6. Affected versionversion=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <f8dea54f74cae8c2e4d7b2952e8fed7743a85c87
  7. Affected versionversion=5.2.14 <5.3
  8. Affected versionversion=5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=44dfa46aaf7cf594ac89bc1a0c0e56c498b31269; version=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <0912cf021fb5749372b3782611d8b1de4986c13a; version=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <2c1fa3614795e2b24da1ba95de0b27b8f6ea4537; version=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320; version=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <7e88a50704b0c49ad3f2d11e8b963341cf68a89f; version=48057ed1840fde9239b1e000bea1a0a1f07c5e99 <f8dea54f74cae8c2e4d7b2952e8fed7743a85c87; version=5.2.14 <5.3; version=5.3

Published CVSS scores

5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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