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(parent: a253f13) | patch
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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 5 Dec 2019 14:35:13 +0000 (15:35 +0100)
commit9d3fcde90f85fce9e769825730020e1f97a80bbf
treef9e7892cc3a63cc8794d782f925814c3ea7102c9tree | snapshot
parenta253f13ad902926b07b7156878ac18bde3769e5ccommit | diff
net: fix possible overflow in __sk_mem_raise_allocated()

[ Upstream commit 5bf325a53202b8728cf7013b72688c46071e212e ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
include/net/sock.h diff | blob | history
net/core/sock.c diff | blob | history
Domain: System / Kernel;