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| author | Vincent Minet <v.minet@criteo.com> | 2020-05-08 00:14:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-20 08:20:13 +0200 |
| commit | 2fffdf4dded1032d8ab974567dfc59d754b94c94 (patch) | |
| tree | b0970c57afd8967e34bb437614bc993bbd873b1d /mm/page_idle.c | |
| parent | 44ee727013d55c964616d5b8d26cc6a20d699f67 (diff) | |
umh: fix memory leak on execve failure
[ Upstream commit db803036ada7d61d096783726f9771b3fc540370 ]
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 <v.minet@criteo.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/page_idle.c')
0 files changed, 0 insertions, 0 deletions