diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-12-09 23:41:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-12-10 13:51:44 -0500 |
| commit | 1bf3751ec90cc3174e01f0d701e8449ce163d113 (patch) | |
| tree | e625d411db647c59274e74d664c903bb5bb6b502 /Documentation/local_ops.txt | |
| parent | 5e1f54201cb481f40a04bc47e1bc8c093a189e23 (diff) | |
| download | blackbird-obmc-linux-1bf3751ec90cc3174e01f0d701e8449ce163d113.tar.gz blackbird-obmc-linux-1bf3751ec90cc3174e01f0d701e8449ce163d113.zip | |
ipv4: ip_check_defrag must not modify skb before unsharing
ip_check_defrag() might be called from af_packet within the
RX path where shared SKBs are used, so it must not modify
the input SKB before it has unshared it for defragmentation.
Use skb_copy_bits() to get the IP header and only pull in
everything later.
The same is true for the other caller in macvlan as it is
called from dev->rx_handler which can also get a shared SKB.
Reported-by: Eric Leblond <eric@regit.org>
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/local_ops.txt')
0 files changed, 0 insertions, 0 deletions
