diff options
| -rw-r--r-- | pkg/sentry/kernel/shm/shm.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/pkg/sentry/kernel/shm/shm.go b/pkg/sentry/kernel/shm/shm.go index 8d0d14e45..2feffe612 100644 --- a/pkg/sentry/kernel/shm/shm.go +++ b/pkg/sentry/kernel/shm/shm.go @@ -101,9 +101,12 @@ func (r *Registry) findByKey(key int32) *Shm { // FindOrCreate looks up or creates a segment in the registry. It's functionally // analogous to open(2). func (r *Registry) FindOrCreate(ctx context.Context, pid, key int32, size uint64, mode linux.FileMode, private, create, exclusive bool) (*Shm, error) { - if create && (size < linux.SHMMIN || size > linux.SHMMAX) { + if (create || private) && (size < linux.SHMMIN || size > linux.SHMMAX) { // "A new segment was to be created and size is less than SHMMIN or // greater than SHMMAX." - man shmget(2) + // + // Note that 'private' always implies the creation of a new segment + // whether IPC_CREAT is specified or not. return nil, syserror.EINVAL } |