diff options
Diffstat (limited to 'pkg/sentry/mm/syscalls.go')
| -rw-r--r-- | pkg/sentry/mm/syscalls.go | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pkg/sentry/mm/syscalls.go b/pkg/sentry/mm/syscalls.go index f8f095fed..cc7eb76d2 100644 --- a/pkg/sentry/mm/syscalls.go +++ b/pkg/sentry/mm/syscalls.go @@ -698,11 +698,11 @@ func (mm *MemoryManager) Brk(ctx context.Context, addr usermem.Addr) (usermem.Ad return mm.brk.End, syserror.EINVAL } - // TODO: This enforces RLIMIT_DATA, but is slightly more - // permissive than the usual data limit. In particular, this only - // limits the size of the heap; a true RLIMIT_DATA limits the size of - // heap + data + bss. The segment sizes need to be plumbed from the - // loader package to fully enforce RLIMIT_DATA. + // TODO: This enforces RLIMIT_DATA, but is + // slightly more permissive than the usual data limit. In particular, + // this only limits the size of the heap; a true RLIMIT_DATA limits the + // size of heap + data + bss. The segment sizes need to be plumbed from + // the loader package to fully enforce RLIMIT_DATA. if uint64(addr-mm.brk.Start) > limits.FromContext(ctx).Get(limits.Data).Cur { mm.mappingMu.Unlock() return mm.brk.End, syserror.ENOMEM |