Kernel memory corruption via asynchronous TCP timer teardown
Published May 19, 2024 · Updated Aug 5, 2026
Use-after-free in Linux kernel TCP teardown allows local users to corrupt kernel memory during kernel-socket cleanup. inet_csk_clear_xmit_timers uses nonsynchronous timer deletion, allowing a callback to outlive the network namespace referenced by a kernel socket. The race requires kernel-socket closure during namespace teardown and can expose or alter kernel data or interrupt the system.
Summary
What happened
Use-after-free in Linux kernel TCP teardown allows local users to corrupt kernel memory during kernel-socket cleanup. inet_csk_clear_xmit_timers uses nonsynchronous timer deletion, allowing a callback to outlive the network namespace referenced by a kernel socket. The race requires kernel-socket closure during namespace teardown and can expose or alter kernel data or interrupt the system.
The record
- CVE
- CVE-2024-35910
- Published
- May 19, 2024
- Updated
- Aug 5, 2026
- Vendor
- Siemens
- Product
- SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 19, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=V3.1.0 <V3.1.5
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
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Weakness, pattern, technique
No sourced classifications are available.
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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