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Devils Are in the File Descriptors - It Is Time To Catch Them All

Black Hat via YouTube

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This talk examines security vulnerabilities in Linux kernel file descriptor export and import operations, including race-condition-related use-after-free and type-confusion flaws.

Syllabus

Intro
Background
Scenario of fd export operation
UAF caused by race condition
Scenario of fd import operation
Fd type confusion caused by race condition
black hat
Find the issues

Taught by

Black Hat

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