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| author | Christoph Paasch <christoph.paasch@uclouvain.be> | 2014-07-29 12:07:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-30 17:31:06 -0700 |
| commit | 45a07695bc64b3ab5d6d2215f9677e5b8c05a7d0 (patch) | |
| tree | b47746b0b34696ce1234e087c6891f109cc5006e /net/ipv4/tcp_vegas.c | |
| parent | 95cb5745983c222867cc9ac593aebb2ad67d72c0 (diff) | |
| download | talos-obmc-linux-45a07695bc64b3ab5d6d2215f9677e5b8c05a7d0.tar.gz talos-obmc-linux-45a07695bc64b3ab5d6d2215f9677e5b8c05a7d0.zip | |
tcp: Fix integer-overflows in TCP veno
In veno we do a multiplication of the cwnd and the rtt. This
may overflow and thus their result is stored in a u64. However, we first
need to cast the cwnd so that actually 64-bit arithmetic is done.
A first attempt at fixing 76f1017757aa0 ([TCP]: TCP Veno congestion
control) was made by 159131149c2 (tcp: Overflow bug in Vegas), but it
failed to add the required cast in tcp_veno_cong_avoid().
Fixes: 76f1017757aa0 ([TCP]: TCP Veno congestion control)
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_vegas.c')
0 files changed, 0 insertions, 0 deletions
