CVE-2022-49435

System crash via unchecked platform resource

Published Feb 26, 2025 · Updated May 11, 2026

NULL pointer dereference in affected Linux kernel releases allows local users to crash the system during DaVinci voice-codec probing. davinci_vc_probe dereferences res->start after platform_get_resource can return NULL for a platform device lacking the expected memory resource. Reachability requires the DaVinci voice-codec driver and a platform device with a missing memory resource; the resulting fault interrupts availability without reported data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.26%
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 affected Linux kernel releases allows local users to crash the system during DaVinci voice-codec probing. davinci_vc_probe dereferences res->start after platform_get_resource can return NULL for a platform device lacking the expected memory resource. Reachability requires the DaVinci voice-codec driver and a platform device with a missing memory resource; the resulting fault interrupts availability without reported data exposure or modification.

The record

CVE
CVE-2022-49435
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

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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=5.4
  2. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <2d00158a06efe6bbcd020108634ea0f2ed8b32f7
  3. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <311242c7703df0da14c206260b7e855f69cb0264
  4. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <49c1e32e7b3f301642a60448700ec531df981269
  5. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <5289795824b77489803b0802cd9edc13824a2d0b
  6. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <579944b9f38727d9ff570b58f83bc424e8af8398
  7. Affected versionversion=b5e29aa880be84c271be8d0726cec4018bfbfd74 <a1d4941d9a24999f680799f9bbde7f57351ca637

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.4; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <2d00158a06efe6bbcd020108634ea0f2ed8b32f7; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <311242c7703df0da14c206260b7e855f69cb0264; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <49c1e32e7b3f301642a60448700ec531df981269; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <5289795824b77489803b0802cd9edc13824a2d0b; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <579944b9f38727d9ff570b58f83bc424e8af8398; version=b5e29aa880be84c271be8d0726cec4018bfbfd74 <a1d4941d9a24999f680799f9bbde7f57351ca637

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 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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