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(parent: 1027b98) | patch
tcp: avoid integer overflows in tcp_rcv_space_adjust()
authorEric Dumazet <edumazet@google.com>
Mon, 11 Dec 2017 01:55:03 +0000 (17:55 -0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 12 Dec 2017 15:53:04 +0000 (10:53 -0500)
commit2fa2f0168fbb746531ab855636c0d2261860ab61
treed18808d1c3bf46dd8a899c3877257ea8c4961b61tree | snapshot
parent1027b988b923272b27a1549261cf6aed7859a31dcommit | diff
tcp: avoid integer overflows in tcp_rcv_space_adjust()

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>
include/linux/tcp.h diff | blob | history
net/ipv4/tcp_input.c diff | blob | history
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