CVE-2022-50008

Local system hang via disabled kprobe disarm

Published Jun 18, 2025 · Updated May 11, 2026

Denial of service in Linux kernel kprobes allows local users to hang the system by disabling and re-enabling probes. The __disable_kprobe function disarms an already disabled probe, so incomplete unregister cleanup leaves an aggregated probe linked in a cyclic hash-table list. Local access plus permission to control kprobes and run tracing tools is required; traversing the corrupted list causes an RCU stall or soft lockup.

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

Denial of service in Linux kernel kprobes allows local users to hang the system by disabling and re-enabling probes. The __disable_kprobe function disarms an already disabled probe, so incomplete unregister cleanup leaves an aggregated probe linked in a cyclic hash-table list. Local access plus permission to control kprobes and run tracing tools is required; traversing the corrupted list causes an RCU stall or soft lockup.

The record

CVE
CVE-2022-50008
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-835, 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=4.0
  2. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <19cd630712e7c13a3dedfc6986a9b983fed6fd98
  3. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <55c7a91527343d2e0b5647cc308c6e04ddd2aa52
  4. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <6f3c1bc22fc2165461883f506b4d2c3594bd7137
  5. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <744b0d3080709a172f0408aedabd1cedd24c2ee6
  6. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <9c80e79906b4ca440d09e7f116609262bb747909
  7. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <b474ff1b20951f1eac75d100a93861e6da2b522b
  8. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <bc3188d8a3b8c08c306a4c851ddb2c92ba4599ca
  9. Affected versionversion=69d54b916d83872a0a327778a01af2a096923f59 <fc91d2db55acdaf0c0075b624e572d3520ca3bc3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.0; version=69d54b916d83872a0a327778a01af2a096923f59 <19cd630712e7c13a3dedfc6986a9b983fed6fd98; version=69d54b916d83872a0a327778a01af2a096923f59 <55c7a91527343d2e0b5647cc308c6e04ddd2aa52; version=69d54b916d83872a0a327778a01af2a096923f59 <6f3c1bc22fc2165461883f506b4d2c3594bd7137; version=69d54b916d83872a0a327778a01af2a096923f59 <744b0d3080709a172f0408aedabd1cedd24c2ee6; version=69d54b916d83872a0a327778a01af2a096923f59 <9c80e79906b4ca440d09e7f116609262bb747909; version=69d54b916d83872a0a327778a01af2a096923f59 <b474ff1b20951f1eac75d100a93861e6da2b522b; version=69d54b916d83872a0a327778a01af2a096923f59 <bc3188d8a3b8c08c306a4c851ddb2c92ba4599ca; version=69d54b916d83872a0a327778a01af2a096923f59 <fc91d2db55acdaf0c0075b624e572d3520ca3bc3

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
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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