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The UEFI specification allows uninstallation of a protocol interface to fail. There is no sensible way for code to react to this, since uninstallation is likely to be taking place on a code path that cannot itself fail (e.g. a code path that is itself a failure path). Where the protocol structure exists within a dynamically allocated block of memory, this leads to possible use-after-free bugs. Work around this unfortunate design choice by nullifying the protocol (i.e. overwriting the method pointers with no-ops) and leaking the memory containing the protocol structure. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org