pkg/subsystem/lists: add Linux tests

1 files changed, 72 insertions, 0 deletions

diff --git a/pkg/subsystem/lists/linux_test.go b/pkg/subsystem/lists/linux_test.go
new file mode 100644
index 000000000..4f53948fd
--- /dev/null
+++ b/pkg/subsystem/lists/linux_test.go
@@ -0,0 +1,72 @@
+// Copyright 2023 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+package lists
+
+import (
+	"testing"
+
+	"github.com/google/syzkaller/pkg/subsystem"
+	"github.com/stretchr/testify/assert"
+)
+
+// nolint: lll
+func TestLinuxUpstreamSubsystems(t *testing.T) {
+	list := subsystem.GetList("linux")
+	if list == nil {
+		t.Fatalf("the list is not registered")
+	}
+	group := subsystem.MakeExtractor(list)
+
+	// For now let's keep all the regression tests in this .go file, but if later
+	// it turns out there are just too many of them, we will need to store it in
+	// separate files.
+	tests := []struct {
+		name    string
+		crashes []*subsystem.Crash
+		expect  []string
+	}{
+		{
+			name: `a pure xfs bug`,
+			crashes: []*subsystem.Crash{
+				{
+					GuiltyPath: `fs/xfs/libxfs/xfs_btree.c`,
+					SyzRepro: []byte(`# https://syzkaller.appspot.com/bug?id=e2907149c69cbccae0842eb502b8af4f6fac52a0
+# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
+#{"procs":1,"slowdown":1,"sandbox":"","sandbox_arg":0,"close_fds":false}
+syz_mount_image$xfs(&(0x7f0000000100), &(0x7f0000009640)='./file2\x00', 0x200800, &(0x7f0000000240)=ANY=[], 0x1, 0x9712, &(0x7f0000009680)="$eJzs3Qm4pnPhuPH=")
+`),
+				},
+			},
+			expect: []string{"xfs"},
+		},
+		{
+			name: `a seemingly vfs bug`,
+			crashes: []*subsystem.Crash{
+				{
+					GuiltyPath: `fs/namei.c`,
+				},
+				{
+					GuiltyPath: `fs/namei.c`,
+					SyzRepro: []byte(`# https://syzkaller.appspot.com/bug?id=cdaf5ed409125df023889aefe50b4cc4a41c0973
+# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
+#{"threaded":true,"repeat":true,"procs":6,"slowdown":1,"sandbox":"","sandbox_arg":0,"close_fds":false,"ieee802154":true,"sysctl":true,"tmpdir":true,"segv":true}
+syz_mount_image$ntfs3(&(0x7f000001f740), &(0x7f000001f780)='./file0\x00', 0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="64697363==")
+mkdirat(0xffffffffffffff9c, &(0x7f0000000600)='./file0aaaaaaaaaaaaaaaaa\x00', 0x0)
+symlinkat(&(0x7f00000004c0)='./file0aaaaaaaaaa/file0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./file0aaaaaa/file0\x00')
+`),
+				},
+			},
+			expect: []string{"ntfs3"},
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			names := []string{}
+			for _, e := range group.Extract(test.crashes) {
+				names = append(names, e.Name)
+			}
+			assert.ElementsMatch(t, names, test.expect, test.name)
+		})
+	}
+}