diff options
| author | Eric Dumazet <edumazet@google.com> | 2019-02-12 23:26:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-14 08:05:18 +0300 |
| commit | 5bf325a53202b8728cf7013b72688c46071e212e (patch) | |
| tree | 2d1696d8f6e9b45265fbb65c1d9312b7e0c89bb5 /net/core/sock.c | |
| parent | 7c0db24cc431e2196d98a5d5ddaa9088e2fcbfe5 (diff) | |
| download | linux-5bf325a53202b8728cf7013b72688c46071e212e.tar.xz | |
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>
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 6aa2e7e0b4fb..bc3512f230a3 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2380,7 +2380,7 @@ int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) } if (sk_has_memory_pressure(sk)) { - int alloc; + u64 alloc; if (!sk_under_memory_pressure(sk)) return 1; |