net: fix possible overflow in __sk_mem_raise_allocated()
authorEric Dumazet <edumazet@google.com>
Tue, 12 Feb 2019 20:26:27 +0000 (12:26 -0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 14 Feb 2019 05:05:18 +0000 (21:05 -0800)
commit5bf325a53202b8728cf7013b72688c46071e212e
tree2d1696d8f6e9b45265fbb65c1d9312b7e0c89bb5
parent7c0db24cc431e2196d98a5d5ddaa9088e2fcbfe5
net: fix possible overflow in __sk_mem_raise_allocated()

With many active TCP sockets, fat TCP sockets could fool
__sk_mem_raise_allocated() thanks to an overflow.

They would increase their share of the memory, instead
of decreasing it.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/sock.h
net/core/sock.c