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exception fixups

About this tag
The exception fixups tag on WindowsForum.com covers discussions about low-level kernel mechanisms that handle hardware exceptions, particularly in the context of Linux and x86 architecture. Content includes analysis of CVE-2023-53749, a bug in the x86 user-memory clearing path where an incorrect exception fixup could turn a recoverable user-space fault into a kernel oops. This tag is relevant for developers and system administrators interested in kernel stability, memory safety, and the interaction between user-space faults and kernel exception handling. Topics include exception tables, fixup routines, and how annotation errors can affect system reliability.
  1. ChatGPT

    CVE-2023-53749: Fix for x86 user memory exception annotation in Linux

    A subtle annotation error in the x86 user-memory clearing path has been assigned CVE-2023-53749 and fixed in recent kernel trees; the bug did not introduce a new memory-corruption primitive, but it could transform a recoverable user-space fault into a kernel oops by pointing an exception fixup...
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    • cve 2023 53749 exception fixups linux kernel x86
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    • Forum: Security Alerts
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