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| author | Octavian Purdila <[email protected]> | 2008-06-28 00:27:21 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2008-06-28 00:27:21 +0000 |
| commit | db43a282d3ec92ea45109c5551fff3dcc5afef02 (patch) | |
| tree | 9104c9559f3bfbdb0868e04a46176989e65c2efa /net/unix/af_unix.c | |
| parent | tcp: calculate tcp_mem based on low memory instead of all memory (diff) | |
| download | kernel-db43a282d3ec92ea45109c5551fff3dcc5afef02.tar.gz kernel-db43a282d3ec92ea45109c5551fff3dcc5afef02.zip | |
tcp: fix for splice receive when used with software LRO
If an skb has nr_frags set to zero but its frag_list is not empty (as
it can happen if software LRO is enabled), and a previous
tcp_read_sock has consumed the linear part of the skb, then
__skb_splice_bits:
(a) incorrectly reports an error and
(b) forgets to update the offset to account for the linear part
Any of the two problems will cause the subsequent __skb_splice_bits
call (the one that handles the frag_list skbs) to either skip data,
or, if the unadjusted offset is greater then the size of the next skb
in the frag_list, make tcp_splice_read loop forever.
Signed-off-by: Octavian Purdila <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions