CVE-2022-50196

Local service interruption via OCMEM reference leak

Published Jun 18, 2025 · Updated May 11, 2026

Resource exhaustion in the Qualcomm OCMEM driver in affected Linux 5.5 through 5.19.1 allows local users to interrupt service. The of_get_ocmem function retains the reference added by of_parse_phandle because it omits of_node_put after using the device-tree node. Reachability requires a low-privileged local context and an affected Qualcomm configuration; repeated reachable calls can exhaust kernel memory.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in the Qualcomm OCMEM driver in affected Linux 5.5 through 5.19.1 allows local users to interrupt service. The of_get_ocmem function retains the reference added by of_parse_phandle because it omits of_node_put after using the device-tree node. Reachability requires a low-privileged local context and an affected Qualcomm configuration; repeated reachable calls can exhaust kernel memory.

The record

CVE
CVE-2022-50196
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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=5.5
  2. Affected versionversion=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <07aea6819d569d1e172227486655e4fb5bd4cdb9
  3. Affected versionversion=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <84a928b44cb303d5756e3bff2734921de8dce4f6
  4. Affected versionversion=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <92a563fcf14b3093226fb36f12e9b5cf630c5a5d
  5. Affected versionversion=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <a1e4243c0dddeafb4ace6d9906d3f5129b81a9fe
  6. Affected versionversion=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <ed40a48d0a9166edb22e2b8efafea822e93dd79a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.5; version=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <07aea6819d569d1e172227486655e4fb5bd4cdb9; version=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <84a928b44cb303d5756e3bff2734921de8dce4f6; version=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <92a563fcf14b3093226fb36f12e9b5cf630c5a5d; version=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <a1e4243c0dddeafb4ace6d9906d3f5129b81a9fe; version=88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 <ed40a48d0a9166edb22e2b8efafea822e93dd79a

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 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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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