Local out-of-bounds read via DA monitor tracepoints
Published Aug 22, 2025 · Updated May 11, 2026
Out-of-bounds read in Linux 6.0 through 6.16 allows local users to trigger an invalid 32-byte read through DA monitor tracepoints. DA monitor tracepoint definitions store literal automaton strings as fixed 32-byte arrays, so event collection reads past each literal into adjacent automaton data. KASAN exposes the access, while null-terminated printing prevents disclosure and the Linux kernel CVE team characterizes the error as harmless.
Summary
What happened
Out-of-bounds read in Linux 6.0 through 6.16 allows local users to trigger an invalid 32-byte read through DA monitor tracepoints. DA monitor tracepoint definitions store literal automaton strings as fixed 32-byte arrays, so event collection reads past each literal into adjacent automaton data. KASAN exposes the access, while null-terminated printing prevents disclosure and the Linux kernel CVE team characterizes the error as harmless.
The record
- CVE
- CVE-2025-38636
- Published
- Aug 22, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 22, 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=6.0
- Affected versionversion=792575348ff70e05c6040d02fce38e949ef92c37 <0ebc70d973ce7a81826b5c4f55f743e07f5864d9
- Affected versionversion=792575348ff70e05c6040d02fce38e949ef92c37 <7f904ff6e58d398c4336f3c19c42b338324451f7
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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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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