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mimmutable() for OpenBSD.

Virtual-memory systems provide a great deal of flexibility in how memory can be mapped and protected. Unfortunately, memory-management flexibility can also be useful to attackers bent on compromising a system. In the OpenBSD world, a new system call is being added to reduce this flexibility; it is, though, a system call that almost no code is expected to use.

https://lwn.net/SubscriberLink/915640/53bc300d11179c62/

#security #system #memory

OpenBSD
mimmutable() for OpenBSD.

Virtual-memory systems provide a great deal of flexibility in how memory can be mapped and protected. Unfortunately, memory-management flexibility can also be useful to attackers bent on compromising a system. In the OpenBSD world, a new system call is being added to reduce this flexibility; it is, though, a system call that almost no code is expected to use.

https://lwn.net/SubscriberLink/915640/53bc300d11179c62/

#security #system #memory
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mimmutable() for OpenBSD.

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