Service interruption via device-node reference leak
Published Jun 18, 2025 · Updated May 11, 2026
Resource leak in the ASoC Chrome EC codec in Linux allows local users to interrupt service by exhausting kernel memory during probing. The cros_ec_codec_platform_probe function retains the reference returned by of_parse_phandle instead of releasing it with of_node_put after reading the shared-memory node. Exploitation requires the Chrome EC codec device configuration and repeated execution of the platform probe; no data disclosure or modification is reported.
Summary
What happened
Resource leak in the ASoC Chrome EC codec in Linux allows local users to interrupt service by exhausting kernel memory during probing. The cros_ec_codec_platform_probe function retains the reference returned by of_parse_phandle instead of releasing it with of_node_put after reading the shared-memory node. Exploitation requires the Chrome EC codec device configuration and repeated execution of the platform probe; no data disclosure or modification is reported.
The record
- CVE
- CVE-2022-50125
- Published
- Jun 18, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 18, 2025CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=5.5
- Affected versionversion=b6bc07d4360dbf766e551f18e43c67fff6784955 <0a034d93ee929a9ea89f3fa5f1d8492435b9ee6e
- Affected versionversion=b6bc07d4360dbf766e551f18e43c67fff6784955 <1065c385325845c88350c765cc6e449f46741984
- Affected versionversion=b6bc07d4360dbf766e551f18e43c67fff6784955 <b3e64b5562c077218295f2230fb5cf181193cb06
- Affected versionversion=b6bc07d4360dbf766e551f18e43c67fff6784955 <bae95c5aee1f67da6608ceaebfb744d900e5ffbf
- Affected versionversion=b6bc07d4360dbf766e551f18e43c67fff6784955 <ca6c9244e6c9827a0b2fe8808c5e7b1ee8ab7104
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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