CVE-2022-50087

Kernel use-after-free via failed SCPI probe

Published Jun 18, 2025 · Updated Aug 5, 2026

Use-after-free in the ARM SCPI firmware driver in Linux 4.4 and later allows local users to corrupt kernel memory after probe failure. scpi_probe publishes the global scpi_info pointer before initialization completes, so a failed probe frees its devm-managed allocation while get_scpi_ops consumers can still dereference it. Exposure is limited to ARM systems using SCPI, and a probe failure can lead to kernel reads, writes, privilege escalation, or a crash without user interaction.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the ARM SCPI firmware driver in Linux 4.4 and later allows local users to corrupt kernel memory after probe failure. scpi_probe publishes the global scpi_info pointer before initialization completes, so a failed probe frees its devm-managed allocation while get_scpi_ops consumers can still dereference it. Exposure is limited to ARM systems using SCPI, and a probe failure can lead to kernel reads, writes, privilege escalation, or a crash without user interaction.

The record

CVE
CVE-2022-50087
Published
Jun 18, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.4
  2. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <08272646cd7c310642c39b7f54348fddd7987643
  3. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <0c29e149b6bb498778ed8a1c9597b51acfba7856
  4. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <18048cba444a7c41dbf42c180d6b46606fc24c51
  5. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87
  6. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <5aa558232edc30468d1f35108826dd5b3ffe978f
  7. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <689640efc0a2c4e07e6f88affe6d42cd40cc3f85
  8. Affected versionversion=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <87c4896d5dd7fd9927c814cf3c6289f41de3b562

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.4; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <08272646cd7c310642c39b7f54348fddd7987643; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <0c29e149b6bb498778ed8a1c9597b51acfba7856; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <18048cba444a7c41dbf42c180d6b46606fc24c51; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <5aa558232edc30468d1f35108826dd5b3ffe978f; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <689640efc0a2c4e07e6f88affe6d42cd40cc3f85; version=8cb7cf56c9fe5412de238465b27ef35b4d2801aa <87c4896d5dd7fd9927c814cf3c6289f41de3b562

Published CVSS scores

7.0Oracle LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Linux kernelCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-416Use After Free
T1068Exploitation for Privilege Escalation

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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