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Michael Brown 5b41b9a80f [efi] Nullify interfaces and leak memory on uninstallation failure
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>
2020-10-26 15:24:00 +00:00
contrib [coverity] Override assumptions about wcrtomb() and hmac_init() 2019-08-17 17:18:54 +01:00
src [efi] Nullify interfaces and leak memory on uninstallation failure 2020-10-26 15:24:00 +00:00
.travis.yml [travis] Ensure that most recent tag is always available 2020-01-03 00:14:03 +01:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org