diff options
Diffstat (limited to 'pkg/sentry/mm/lifecycle.go')
| -rw-r--r-- | pkg/sentry/mm/lifecycle.go | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/pkg/sentry/mm/lifecycle.go b/pkg/sentry/mm/lifecycle.go index a71286f14..2fe03172c 100644 --- a/pkg/sentry/mm/lifecycle.go +++ b/pkg/sentry/mm/lifecycle.go @@ -124,7 +124,7 @@ func (mm *MemoryManager) Fork(ctx context.Context) (*MemoryManager, error) { } if !pma.needCOW { pma.needCOW = true - if pma.vmaEffectivePerms.Write { + if pma.effectivePerms.Write { // We don't want to unmap the whole address space, even though // doing so would reduce calls to unmapASLocked(), because mm // will most likely continue to be used after the fork, so @@ -139,7 +139,9 @@ func (mm *MemoryManager) Fork(ctx context.Context) (*MemoryManager, error) { } unmapAR = srcpseg.Range() } + pma.effectivePerms.Write = false } + pma.maxPerms.Write = false } fr := srcpseg.fileRange() mm2.incPrivateRef(fr) |