[Etherboot-developers] [PATCH 0/7] IPv4 fragmentation fixes

[Michal K. <mku...@su...>]

These are fixes for some IPv4 fragmentation problems I've found when
investigating problems of one of our customers with PXE boot of a Xen
guest in presence of fragmented packets.

Patches 1-3 are critical, 1 and 2 leading to memory corruption, 3 to
wrong parsing of IPv4 header. Patches 4-6 resolve various memory leaks.
Patch 7 is optional, it limits memory consumption under circumstances
that shouldn't happen but are known to happen from time to time.

Michal Kubecek (7):
  [ipv4] Check for buffer overflow when adding fragment
  [ipv4] Unlink frag_buffer from lists when before freeing
  [ipv4] Convert fragmentation header fields from NBO to HBO
  [ipv4] When freeing frag_buffer, free its io_buffer
  [ipv4] Free packet buffer when fragment isn't matched
  [ipv4] Free frag_buffer when its timer expires
  [ipv4] Limit number of fragment buffers

 src/include/gpxe/ip.h |    4 ++
 src/net/ipv4.c        |   86 ++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 82 insertions(+), 8 deletions(-)

-- 
1.7.7