linux-kernel - Re: [PATCH] net: x86: bpf: don't forget to free sk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20131107.190727.1219440287544649912.davem@davemloft.net>
Date:	Thu, 07 Nov 2013 19:07:27 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	avagin@...nvz.org
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	ast@...mgrid.com, edumazet@...gle.com
Subject: Re: [PATCH] net: x86: bpf: don't forget to free sk_filter (v2)

From: Andrey Vagin <avagin@...nvz.org>
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@...hat.com>
> Cc: Alexei Starovoitov <ast@...mgrid.com>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Signed-off-by: Andrey Vagin <avagin@...nvz.org>

Applied and queued up for -stable, thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/