CVE-2022-50548

Local denial of service via leaked fwnode resources

Published Oct 7, 2025 · Updated Oct 7, 2025

Memory leak in the Linux kernel HI846 camera driver allows local users to exhaust memory through failed supported-link-frequency checks. The hi846_parse_dt function returns from validation failures after v4l2_fwnode_endpoint_alloc_parse allocates variable-size endpoint data, without calling v4l2_fwnode_endpoint_free. Exposure requires the HI846 driver to probe firmware-node data whose supported link frequencies fail validation; the resulting leak can interrupt service through memory exhaustion.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel HI846 camera driver allows local users to exhaust memory through failed supported-link-frequency checks. The hi846_parse_dt function returns from validation failures after v4l2_fwnode_endpoint_alloc_parse allocates variable-size endpoint data, without calling v4l2_fwnode_endpoint_free. Exposure requires the HI846 driver to probe firmware-node data whose supported link frequencies fail validation; the resulting leak can interrupt service through memory exhaustion.

The record

CVE
CVE-2022-50548
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record 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=5.16
  2. Affected versionversion=e8c0882685f9152f0d729664a12bcbe749cb7736 <4368730678412a8fa71960dbda81e122dafa70f7
  3. Affected versionversion=e8c0882685f9152f0d729664a12bcbe749cb7736 <80113026d415e27483669db7a88b548d1ec3d3d1
  4. Affected versionversion=e8c0882685f9152f0d729664a12bcbe749cb7736 <a05a9ae9ef3fffc9bc7ec2bc432a249a01155f6e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <4368730678412a8fa71960dbda81e122dafa70f7; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <80113026d415e27483669db7a88b548d1ec3d3d1; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <a05a9ae9ef3fffc9bc7ec2bc432a249a01155f6e

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-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation

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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