exception fixups

  1. 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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