diff options
| author | Fabricio Voznika <fvoznika@google.com> | 2021-07-01 14:20:16 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-07-01 14:23:01 -0700 |
| commit | 3d4a8824f8e7aafdf6c1d18822b7593fa2e3e6bb (patch) | |
| tree | 6c131a8dcd86bf442e3c7c764c1090c91577d23a /pkg/sentry | |
| parent | 590b8d3e99dd24d2bb625d00fa99fbc9296dfe2b (diff) | |
Strace: handle null paths
PiperOrigin-RevId: 382603592
Diffstat (limited to 'pkg/sentry')
| -rw-r--r-- | pkg/sentry/strace/strace.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/sentry/strace/strace.go b/pkg/sentry/strace/strace.go index af7088847..3ea9c31dd 100644 --- a/pkg/sentry/strace/strace.go +++ b/pkg/sentry/strace/strace.go @@ -133,6 +133,9 @@ func dump(t *kernel.Task, addr hostarch.Addr, size uint, maximumBlobSize uint) s } func path(t *kernel.Task, addr hostarch.Addr) string { + if addr == 0 { + return "<null>" + } path, err := t.CopyInString(addr, linux.PATH_MAX) if err != nil { return fmt.Sprintf("%#x (error decoding path: %s)", addr, err) |