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  1. MariaDB Connector/C
  2. CONC-785

non blocking API usage crashes on x86-64 with shstk enabled

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Details

    • Bug
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • None
    • None
    • None

    Description

      Like aarch64 (CONC-774) recent x86-64 CPUs support similar protection. Intel calls it "Control Flow Enforcement Technology (CET)", in particular "Indirect Branch Tracking (IBT)".

      It's enabled with gcc -fcf-protection=branch flag and requires IBT to be present in readelf -n unittest/libmariadb/async (and, supposedly, in glibc tunables?)

      See also https://h3xduck.github.io/cfi/2025/06/26/enabling-intel-cet.html.

      Allegedly, if enabled, it'll cause the same crash on x86-64 as CONC-744 was on aarch64

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. CONC-774 non blocking API usage crashes on arm64 with Branch Target Identification (BTI)

          • Major - Major loss of function.
          • Closed

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              georg Georg Richter
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:

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