Local code execution via offsets stride mismatch
Published Jul 25, 2026 · Updated Jul 25, 2026
Use-after-free in Linux Kernel allows local users to execute code in privileged Binder services via crafted transactions. On 32-bit kernels, Allocation::drop reads eight-byte binder_size_t offsets with a four-byte usize stride, revisits offset zero, and over-decrements the referenced object's count. An ordinary process with Binder device access can trigger cleanup without a race or user interaction, enabling stale-object access to privileged-service memory or a repeatable service crash.
Summary
What happened
Use-after-free in Linux Kernel allows local users to execute code in privileged Binder services via crafted transactions. On 32-bit kernels, Allocation::drop reads eight-byte binder_size_t offsets with a four-byte usize stride, revisits offset zero, and over-decrements the referenced object's count. An ordinary process with Binder device access can trigger cleanup without a race or user interaction, enabling stale-object access to privileged-service memory or a repeatable service crash.
The record
- CVE
- CVE-2026-64467
- Published
- Jul 25, 2026
- Updated
- Jul 25, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 25, 2026CVE publishedPublication date reported by the CVE source.
- Jul 25, 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=6.18
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <74920b1b4e474ba7a4de4323c0458deec49d210b
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <803c8a9502e9b97cd6ae937618ef4a8fd6274343
- Affected versionversion=eafedbc7c050c44744fbdf80bdf3315e860b7513 <89b8cc948dce661af87527623b3a41cdd115e2f9
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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Your stack
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