diff options
| author | Michael Pratt <mpratt@google.com> | 2019-04-10 17:59:02 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-04-10 18:00:18 -0700 |
| commit | cc48969bb72e3efdc22746c5e7463b79b1942c2b (patch) | |
| tree | 8fe3c01ba81b042a8ab9d7b9751b3c0c59e03a75 /pkg/sentry/mm | |
| parent | d93d19fd4eefdfd868919a73c9498e7da7eb9258 (diff) | |
Internal change
PiperOrigin-RevId: 242978508
Change-Id: I0ea59ac5ba1dd499e87c53f2e24709371048679b
Diffstat (limited to 'pkg/sentry/mm')
| -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 |