Re: [PATCH] net: x86: bpf: don't forget to free sk_filter (v2)

From: David Miller
Date: Thu Nov 07 2013 - 19:07:42 EST


From: Andrey Vagin <avagin@xxxxxxxxxx>
Date: Thu, 7 Nov 2013 08:35:12 +0400

> sk_filter isn't freed if bpf_func is equal to sk_run_filter.
>
> This memory leak was introduced by v3.12-rc3-224-gd45ed4a4
> "net: fix unsafe set_memory_rw from softirq".
>
> Before this patch sk_filter was freed in sk_filter_release_rcu,
> now it should be freed in bpf_jit_free.
>
> Here is output of kmemleak:
...
> v2: add extra { } after else
>
> Fixes: d45ed4a4e33a ("net: fix unsafe set_memory_rw from softirq")
> Acked-by: Daniel Borkmann <dborkman@xxxxxxxxxx>
> Cc: Alexei Starovoitov <ast@xxxxxxxxxxxx>
> Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>

Applied and queued up for -stable, thanks!
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