• AutoTL;DRB
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    41 year ago

    This is the best summary I could come up with:


    The Linux 6.6 modules infrastructure is changing to better protect against the illicit behavior of NVIDIA’s proprietary kernel driver.

    Most notable with the modules update is a change that better builds up the defenses against NVIDIA’s proprietary kernel driver from using GPL-only symbols.

    Given that symbol_get was only ever intended for tightly cooperating modules using very internal symbols it is logical to restrict it to being used on EXPORY_SYMBOL_GPL and prevent nvidia from costly DMCA circumvention of access controls lawsuits.

    Luis Chamberlain further added in today’s pull request: "Christoph Hellwig’s symbol_get() fix to Nvidia’s efforts to circumvent the protection he put in place in year 2020 to prevent proprietary modules from using GPL only symbols, and also ensuring proprietary modules which export symbols grandfather their taint.

    The circumvention tactic used by Nvidia was to use symbol_get() to purposely swift through proprietary module symbols and completley bypass our traditional EXPORT_SYMBOL*() annotations and community agreed upon restrictions."

    Back in 2020 when the original defense was added, NVIDIA recommended avoiding the Linux 5.9 for the time being.


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