Kernel memory corruption via misplaced flexible array
Published Dec 27, 2024 · Updated Aug 5, 2026
An out-of-bounds write in the Linux kernel 6.10 clk-loongson2 driver allows local users to corrupt kernel memory during device probing. The loongson2_clk_probe() allocation treats clk_data.hws as a trailing flexible array even though clk_data sits before clk_lock, so hws writes overwrite the lock. Reachability requires local low-privileged access and the clk-loongson2 code path; no public source describes a trigger beyond device probing or a demonstrated post-corruption outcome.
Summary
What happened
An out-of-bounds write in the Linux kernel 6.10 clk-loongson2 driver allows local users to corrupt kernel memory during device probing. The loongson2_clk_probe() allocation treats clk_data.hws as a trailing flexible array even though clk_data sits before clk_lock, so hws writes overwrite the lock. Reachability requires local low-privileged access and the clk-loongson2 code path; no public source describes a trigger beyond device probing or a demonstrated post-corruption outcome.
The record
- CVE
- CVE-2024-53193
- Published
- Dec 27, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 27, 2024CVE publishedPublication date reported by the CVE source.
- 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?
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- Affected versionversion=6.10
- Affected versionversion=9796ec0bd04bb0e70487127d44949ca0554df5d3 <145de18065b9840687d9b4e63746238c1da25d22
- Affected versionversion=9796ec0bd04bb0e70487127d44949ca0554df5d3 <6e4bf018bb040955da53dae9f8628ef8fcec2dbe
- Affected versionversion=9796ec0bd04bb0e70487127d44949ca0554df5d3 <76918202615f2ba7deda14901d9fff528a180099
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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