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| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-08-09 10:19:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-15 14:01:57 +0200 |
| commit | 41812f4b84484530057513478c6770590347dc30 (patch) | |
| tree | d08974f1d7fb4802f2ba6fb0235c258e3629936d /kernel | |
| parent | 2b187b56d531baa0a7810e69c92427464d65fc36 (diff) | |
| download | linux-41812f4b84484530057513478c6770590347dc30.tar.gz linux-41812f4b84484530057513478c6770590347dc30.tar.bz2 linux-41812f4b84484530057513478c6770590347dc30.zip | |
ovl: prevent private clone if bind mount is not allowed
commit 427215d85e8d1476da1a86b8d67aceb485eb3631 upstream.
Add the following checks from __do_loopback() to clone_private_mount() as
well:
- verify that the mount is in the current namespace
- verify that there are no locked children
Reported-by: Alois Wohlschlager <alois1@gmx-topmail.de>
Fixes: c771d683a62e ("vfs: introduce clone_private_mount()")
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions