CVE-2022-48965

Local service interruption via device-node reference leak

Published Oct 21, 2024 · Updated May 11, 2026

Reference-count leakage in the Rockchip GPIO driver in Linux allows local users to exhaust kernel memory during repeated driver registration. rockchip_gpiolib_register() obtains a parent device-tree node with of_get_parent() but omits the matching of_node_put() after of_pinctrl_get(). Reachability requires the Rockchip GPIO driver and local low-privilege access; exhaustion can interrupt service without reported data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count leakage in the Rockchip GPIO driver in Linux allows local users to exhaust kernel memory during repeated driver registration. rockchip_gpiolib_register() obtains a parent device-tree node with of_get_parent() but omits the matching of_node_put() after of_pinctrl_get(). Reachability requires the Rockchip GPIO driver and local low-privilege access; exhaustion can interrupt service without reported data exposure or modification.

The record

CVE
CVE-2022-48965
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE 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=5.15
  2. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <033c79b7ee8a7bf1c1a13ac3addc91184425cbae
  3. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <5cb8f1a784fd6115be58282fe15105572319d8be
  4. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <63ff545af73f759d1bd04198af8ed8577fb739fc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <033c79b7ee8a7bf1c1a13ac3addc91184425cbae; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <5cb8f1a784fd6115be58282fe15105572319d8be; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <63ff545af73f759d1bd04198af8ed8577fb739fc

Published CVSS scores

4.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.3SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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

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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