Commit 995b3379 authored May 18, 2009 by Thomas Chenault Committed by David S. Miller May 18, 2009

net: fix skb_seq_read returning wrong offset/length for page frag data



When called with a consumed value that is less than skb_headlen(skb)
bytes into a page frag, skb_seq_read() incorrectly returns an
offset/length relative to skb->data. Ensure that data which should come
from a page frag does.

Signed-off-by: Thomas Chenault <thomas_chenault@dell.com>
Tested-by: Shyam Iyer <shyam_iyer@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 511e11e3

net/core/skbuff.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2288,7 +2288,7 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
		next_skb:
		block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;

		if (abs_offset < block_limit) {
		if (abs_offset < block_limit && !st->frag_data) {
		*data = st->cur_skb->data + (abs_offset - st->stepped_offset);
		return block_limit - abs_offset;
		}