diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-12-10 17:55:03 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-06 16:46:21 +0200 |
| commit | 70741861fc4389ba1228ae4f24cf816b2a79fde6 (patch) | |
| tree | 56d2ca3a51ede395d635731b056351fe4a88389d /include | |
| parent | 9b5c9f07a78fb6052b8c0ec1ac042e9d961008f0 (diff) | |
tcp: avoid integer overflows in tcp_rcv_space_adjust()
commit 607065bad9931e72207b0cac365d7d4abc06bd99 upstream.
When using large tcp_rmem[2] values (I did tests with 500 MB),
I noticed overflows while computing rcvwin.
Lets fix this before the following patch.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Wei Wang <weiwan@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[Backport: sysctl_tcp_rmem is not Namespace-ify'd in older kernels]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 2260f92f1492..5b6df1a8dc74 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -324,7 +324,7 @@ struct tcp_sock { /* Receiver queue space */ struct { - int space; + u32 space; u32 seq; u32 time; } rcvq_space; |