tree 438012f22c81f3d109849a12a14acfbcf5bb9837
parent 2e66f55b3afa290337a47e6ea134ac071c5dd9a7
author Bill Sommerfeld <wsommerfeld@google.com> 1311088953 +0000
committer David S. Miller <davem@davemloft.net> 1311309101 -0700

ipv4: Constrain UFO fragment sizes to multiples of 8 bytes

Because the ip fragment offset field counts 8-byte chunks, ip
fragments other than the last must contain a multiple of 8 bytes of
payload.  ip_ufo_append_data wasn't respecting this constraint and,
depending on the MTU and ip option sizes, could create malformed
non-final fragments.

Google-Bug-Id: 5009328
Signed-off-by: Bill Sommerfeld <wsommerfeld@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>