Simple Linux kernel memory corruption bug leads to complete system compromise

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  • varnish-cache

    Varnish Cache source code repository

  • A handful of C projects I have seen use magic numbers in allocated structs to prevent use-after-free and other memory bugs. Basically, in this case, when the ref count hits zero and the struct is freed, the magic is zeroed and any further access will be stopped. The author makes no reference of this, so I guess this isn’t a widespread safety pattern?

    Ex: https://github.com/varnishcache/varnish-cache/blob/4ae73a5b1...

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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