Service interruption via undetected Binder transaction spam
Published May 8, 2026 · Updated May 8, 2026
Improper spam detection in Linux Kernel Rust Binder allows local users to interrupt service via large one-way Binder transactions. TreeRange checks remaining one-way space before inserting the current request, while ArrayRange omits the equivalent low_oneway_space check entirely. Low-privileged local access to Rust Binder is required, and transaction spam can consume Binder allocation space without affecting confidentiality or integrity.
Summary
What happened
Improper spam detection in Linux Kernel Rust Binder allows local users to interrupt service via large one-way Binder transactions. TreeRange checks remaining one-way space before inserting the current request, while ArrayRange omits the equivalent low_oneway_space check entirely. Low-privileged local access to Rust Binder is required, and transaction spam can consume Binder allocation space without affecting confidentiality or integrity.
The record
- CVE
- CVE-2026-43435
- Published
- May 8, 2026
- Updated
- May 8, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 8, 2026CVE publishedPublication date reported by the CVE source.
- May 8, 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=6.18
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <4fc87c240b8f30e22b7ebaae29d57105589e1c0b
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <8d34c993a9a156e657e43cb95186980745cc3597
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <edf685946c4acbe57cb96f8d5f3c07e9a2e973c8
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
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Technologies
Your stack
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Your stack
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