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| author | Rahat Mahmood <rahat@google.com> | 2020-09-17 23:35:43 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-17 23:37:41 -0700 |
| commit | 07d832dbb539e0bcca74800d09d0ea607d8173a3 (patch) | |
| tree | 975c8ed10240ac6dadb31c82c7ba6b0c8e68bd23 /pkg/sentry/fsimpl/fuse/fusefs.go | |
| parent | 2fbd31e726c5d7bcdd44f0498e73124807052d59 (diff) | |
fuse.DeviceFD needs to hold a reference on the associated filesystem.
This fixes a use-after-free in fuse.DeviceFD.Release.
PiperOrigin-RevId: 332394146
Diffstat (limited to 'pkg/sentry/fsimpl/fuse/fusefs.go')
| -rw-r--r-- | pkg/sentry/fsimpl/fuse/fusefs.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/fuse/fusefs.go b/pkg/sentry/fsimpl/fuse/fusefs.go index f1ffd2343..8f37fd40c 100644 --- a/pkg/sentry/fsimpl/fuse/fusefs.go +++ b/pkg/sentry/fsimpl/fuse/fusefs.go @@ -218,6 +218,7 @@ func newFUSEFilesystem(ctx context.Context, devMinor uint32, opts *filesystemOpt conn: conn, } + fs.VFSFilesystem().IncRef() fuseFD.fs = fs return fs, nil |