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Date:   Fri, 8 May 2020 19:10:58 -0700
From:   Jakub Kicinski <>
To:     Vincent Minet <>
Cc:,,, Alexei Starovoitov <>,
        Luis Chamberlain <>,
        "David S. Miller" <>
Subject: Re: [PATCH] umh: fix memory leak on execve failure

On Fri,  8 May 2020 00:14:22 +0200 Vincent Minet wrote:
> If a UMH process created by fork_usermode_blob() fails to execute,
> a pair of struct file allocated by umh_pipe_setup() will leak.
> Under normal conditions, the caller (like bpfilter) needs to manage the
> lifetime of the UMH and its two pipes. But when fork_usermode_blob()
> fails, the caller doesn't really have a way to know what needs to be
> done. It seems better to do the cleanup ourselves in this case.
> Fixes: 449325b52b7a ("umh: introduce fork_usermode_blob() helper")
> Signed-off-by: Vincent Minet <>

Applied to net, thank you!

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