CVE-2022-49285

Kernel service interruption via incorrect device conversion

Published Feb 26, 2025 · Updated May 11, 2026

NULL pointer dereference in the Linux mma8452 driver allows local users to interrupt service by reading its available-scale sysfs file. The scale-availability callback treats the IIO device as an I2C client and follows removed driver data instead of converting it with dev_to_iio_dev(). A bound MMA8452-family accelerometer and local access to its IIO sysfs attributes are required; the read produces a kernel oops and can interrupt the host.

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

NULL pointer dereference in the Linux mma8452 driver allows local users to interrupt service by reading its available-scale sysfs file. The scale-availability callback treats the IIO device as an I2C client and follows removed driver data instead of converting it with dev_to_iio_dev(). A bound MMA8452-family accelerometer and local access to its IIO sysfs attributes are required; the read produces a kernel oops and can interrupt the host.

The record

CVE
CVE-2022-49285
Published
Feb 26, 2025
Updated
May 11, 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 11, 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=4.4
  2. Affected versionversion=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <4c0bb583a4444cce224e8661090cbffc98e2fe07
  3. Affected versionversion=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <c87b7b12f48db86ac9909894f4dc0107d7df6375
  4. Affected versionversion=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.4; version=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <4c0bb583a4444cce224e8661090cbffc98e2fe07; version=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <c87b7b12f48db86ac9909894f4dc0107d7df6375; version=c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527 <d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS: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-476NULL Pointer Dereference
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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