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| author | Olaf Kirch <olaf.kirch@oracle.com> | 2007-06-23 23:11:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-06-23 23:11:52 -0700 |
| commit | 5b5a60da281c767196427ce8144deae6ec46b389 (patch) | |
| tree | 02ac728c14eb8fa0bd49ac8ede6f15e760ddc3f3 /scripts/patch-kernel | |
| parent | [NET]: Re-enable irqs before pushing pending DMA requests (diff) | |
| download | linux-5b5a60da281c767196427ce8144deae6ec46b389.tar.gz linux-5b5a60da281c767196427ce8144deae6ec46b389.zip | |
[NET]: Make skb_seq_read unmap the last fragment
Having walked through the entire skbuff, skb_seq_read would leave the
last fragment mapped. As a consequence, the unwary caller would leak
kmaps, and proceed with preempt_count off by one. The only (kind of
non-intuitive) workaround is to use skb_seq_read_abort.
This patch makes sure skb_seq_read always unmaps frag_data after
having cycled through the skb's paged part.
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions