diff options
| -rw-r--r-- | pkg/sentry/mm/lifecycle.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/sentry/mm/lifecycle.go b/pkg/sentry/mm/lifecycle.go index de7f29b04..a4b5cb443 100644 --- a/pkg/sentry/mm/lifecycle.go +++ b/pkg/sentry/mm/lifecycle.go @@ -214,5 +214,9 @@ func (mm *MemoryManager) DecUsers(ctx context.Context) { mm.mappingMu.Lock() defer mm.mappingMu.Unlock() - mm.unmapLocked(ctx, mm.applicationAddrRange()) + // If mm is being dropped before mm.SetMmapLayout was called, + // mm.applicationAddrRange() will be empty. + if ar := mm.applicationAddrRange(); ar.Length() != 0 { + mm.unmapLocked(ctx, ar) + } } |