diff options
| author | Vincent Minet <v.minet@criteo.com> | 2020-05-08 00:14:22 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-05-08 19:06:55 -0700 |
| commit | db803036ada7d61d096783726f9771b3fc540370 (patch) | |
| tree | 538a193dd95f6afe20309e7af2182ec6fd7d6845 /mm/userfaultfd.c | |
| parent | 14d8f7486a344ee64c37641c70b2d67013eb9de6 (diff) | |
| download | linux-db803036ada7d61d096783726f9771b3fc540370.tar.bz2 | |
umh: fix memory leak on execve failure
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>
Diffstat (limited to 'mm/userfaultfd.c')
0 files changed, 0 insertions, 0 deletions