CVE-2022-49758

Kernel crash via unchecked platform resource

Published Mar 27, 2025 · Updated May 11, 2026

NULL pointer dereference in the UniPhier reset driver in Linux allows local users to crash the kernel during device probing. The uniphier_glue_reset_probe function passes platform_get_resource output to resource_size before verifying that a memory resource was returned. The published record does not explain how a local low-privileged user can induce probing with the required missing resource.

CVSS severity5.5
Medium
EPSS probability0.20%
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 UniPhier reset driver in Linux allows local users to crash the kernel during device probing. The uniphier_glue_reset_probe function passes platform_get_resource output to resource_size before verifying that a memory resource was returned. The published record does not explain how a local low-privileged user can induce probing with the required missing resource.

The record

CVE
CVE-2022-49758
Published
Mar 27, 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. Mar 27, 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=4.19
  2. Affected versionversion=499fef09a3237497906084da3eede0185fc9abb8 <3a2390c6777e3f6662980c6cfc25cafe9e4fef98
  3. Affected versionversion=499fef09a3237497906084da3eede0185fc9abb8 <633bad3dc81ce2aa561f704ec091e49eb647bd0b
  4. Affected versionversion=499fef09a3237497906084da3eede0185fc9abb8 <95de286200b2a046da01c4aeba02ae9220d68ca4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.19; version=499fef09a3237497906084da3eede0185fc9abb8 <3a2390c6777e3f6662980c6cfc25cafe9e4fef98; version=499fef09a3237497906084da3eede0185fc9abb8 <633bad3dc81ce2aa561f704ec091e49eb647bd0b; version=499fef09a3237497906084da3eede0185fc9abb8 <95de286200b2a046da01c4aeba02ae9220d68ca4

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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.

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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