Facilitating Sweeping Revocation Technique #21
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A capability data_cap for memory region (an array data), with both load (read) and store (write) permissions.
After some read and write operations, we could simulate some vulnerability detection.
cheri_set_perms could be used to revoke for example, some permissions from data_cap.
Therefore, after this revocation, any attempt to write to the memory by cap_ptr, would trigger a capability violation exception. However, read access remains allowed and can read from memory using same capability.