diff options
| author | Andrei Vagin <avagin@google.com> | 2021-06-01 15:31:37 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-06-01 15:33:50 -0700 |
| commit | d7d8a0a5aee841dd7958b0e6bc3b544016d19c24 (patch) | |
| tree | 04ca80e6a682bb13db94c5020183e5bf1cac050f /pkg | |
| parent | 77dc0f5bc94dff28fa23812f3ad60a8b01e91138 (diff) | |
vfs: Don't allow to mount anything on top of detached mounts
PiperOrigin-RevId: 376932659
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/sentry/vfs/mount.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pkg/sentry/vfs/mount.go b/pkg/sentry/vfs/mount.go index 82fd382c2..f93da3af1 100644 --- a/pkg/sentry/vfs/mount.go +++ b/pkg/sentry/vfs/mount.go @@ -220,7 +220,7 @@ func (vfs *VirtualFilesystem) ConnectMountAt(ctx context.Context, creds *auth.Cr vdDentry := vd.dentry vdDentry.mu.Lock() for { - if vdDentry.dead { + if vd.mount.umounted || vdDentry.dead { vdDentry.mu.Unlock() vfs.mountMu.Unlock() vd.DecRef(ctx) |