Merge eff2c264 (automated)

3 files changed, 11 insertions, 7 deletions

diff --git a/pkg/sentry/fs/proc/task.go b/pkg/sentry/fs/proc/task.go
index ef0ca3301..d82d4e998 100644
--- a/pkg/sentry/fs/proc/task.go
+++ b/pkg/sentry/fs/proc/task.go
@@ -162,6 +162,11 @@ func (f *subtasksFile) Readdir(ctx context.Context, file *fs.File, ser fs.Dentry
 	// subtask to emit.
 	offset := file.Offset()
 
+	tasks := f.t.ThreadGroup().MemberIDs(f.pidns)
+	if len(tasks) == 0 {
+		return offset, syserror.ENOENT
+	}
+
 	if offset == 0 {
 		// Serialize "." and "..".
 		root := fs.RootFromContext(ctx)
@@ -178,7 +183,6 @@ func (f *subtasksFile) Readdir(ctx context.Context, file *fs.File, ser fs.Dentry
 	}
 
 	// Serialize tasks.
-	tasks := f.t.ThreadGroup().MemberIDs(f.pidns)
 	taskInts := make([]int, 0, len(tasks))
 	for _, tid := range tasks {
 		taskInts = append(taskInts, int(tid))
diff --git a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
index 895abb129..25ad17a4e 100755
--- a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
+++ b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
@@ -1,12 +1,12 @@
 package kernel
 
 import (
-	"unsafe"
-
 	"fmt"
-	"gvisor.dev/gvisor/third_party/gvsync"
 	"reflect"
 	"strings"
+	"unsafe"
+
+	"gvisor.dev/gvisor/third_party/gvsync"
 )
 
 // SeqAtomicLoad returns a copy of *ptr, ensuring that the read does not race
diff --git a/pkg/sentry/time/seqatomic_parameters_unsafe.go b/pkg/sentry/time/seqatomic_parameters_unsafe.go
index f6560d0bb..89792c56d 100755
--- a/pkg/sentry/time/seqatomic_parameters_unsafe.go
+++ b/pkg/sentry/time/seqatomic_parameters_unsafe.go
@@ -1,12 +1,12 @@
 package time
 
 import (
-	"unsafe"
-
 	"fmt"
-	"gvisor.dev/gvisor/third_party/gvsync"
 	"reflect"
 	"strings"
+	"unsafe"
+
+	"gvisor.dev/gvisor/third_party/gvsync"
 )
 
 // SeqAtomicLoad returns a copy of *ptr, ensuring that the read does not race