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Michael Brown fc69ab94d9 [malloc] Use list_for_each_entry_safe() when we may delete a list entry

free_memblock() currently uses list_for_each_entry() to iterate over
the free list, and may delete an entry over which it iterates.  While
there is no way that the deleted list entry could be overwritten
before we reference it, this does rely upon list_del() leaving the
"next" pointer intact, which is not guaranteed.  Discovered while
tracking down a list-corruption bug (as a result of having modified
list_del() to sanitise the deleted list entry).

Fix by using list_for_each_entry_safe().

Signed-off-by: Michael Brown <mcb30@ipxe.org>

2010-11-08 03:15:56 +00:00

contrib

[contrib] Remove extraneous errcodedb files

2010-10-19 02:27:06 +01:00

src

[malloc] Use list_for_each_entry_safe() when we may delete a list entry

2010-11-08 03:15:56 +00:00

COPYING

Initial revision

2005-05-17 16:44:57 +00:00

COPYRIGHTS

[build] Rename gPXE to iPXE

2010-04-19 23:43:39 +01:00

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

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