Local service interruption via probe-error memory leak
Published Sep 18, 2025 · Updated Sep 18, 2025
Memory leak in the MediaTek clock driver in Linux 5.15 through 6.3.12 and 6.4 through 6.4.3 allows local users to interrupt service via probe errors. In mtk_clk_simple_probe(), the missing-clk_data error path returns after of_iomap() creates base without calling iounmap(), leaking the mapping. Reachability requires a MediaTek clock device to enter that error path; the public record does not explain how a low-privileged user can repeat it.
Summary
What happened
Memory leak in the MediaTek clock driver in Linux 5.15 through 6.3.12 and 6.4 through 6.4.3 allows local users to interrupt service via probe errors. In mtk_clk_simple_probe(), the missing-clk_data error path returns after of_iomap() creates base without calling iounmap(), leaking the mapping. Reachability requires a MediaTek clock device to enter that error path; the public record does not explain how a low-privileged user can repeat it.
The record
- CVE
- CVE-2023-53424
- Published
- Sep 18, 2025
- Updated
- Sep 18, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-401, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 18, 2025CVE publishedPublication date reported by the CVE source.
- Sep 18, 2025Record 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=5.15
- Affected versionversion=c58cd0e40ffac67961b945793876b973728f9b80 <2cae6a28d8c12c597e8656962271520434c61c48
- Affected versionversion=c58cd0e40ffac67961b945793876b973728f9b80 <3db7285e044144fd88a356f5b641b9cd4b231a77
- Affected versionversion=c58cd0e40ffac67961b945793876b973728f9b80 <47234e19b00816a8a7b278c7173f6d4e928c43c7
What conditions does exploitation require?
What is affected?
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
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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