1 files changed, 61 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_uninit.c b/tools/testing/selftests/bpf/progs/verifier_uninit.c
new file mode 100644
index 000000000000..7718cd7d19ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_uninit.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/uninit.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("read uninitialized register")
+__failure __msg("R2 !read_ok")
+__failure_unpriv
+__naked void read_uninitialized_register(void)
+{
+	asm volatile ("					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("read invalid register")
+__failure __msg("R15 is invalid")
+__failure_unpriv
+__naked void read_invalid_register(void)
+{
+	asm volatile ("					\
+	.8byte %[mov64_reg];				\
+	exit;						\
+"	:
+	: __imm_insn(mov64_reg, BPF_MOV64_REG(BPF_REG_0, -1))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("program doesn't init R0 before exit")
+__failure __msg("R0 !read_ok")
+__failure_unpriv
+__naked void t_init_r0_before_exit(void)
+{
+	asm volatile ("					\
+	r2 = r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("program doesn't init R0 before exit in all branches")
+__failure __msg("R0 !read_ok")
+__msg_unpriv("R1 pointer comparison")
+__naked void before_exit_in_all_branches(void)
+{
+	asm volatile ("					\
+	if r1 >= 0 goto l0_%=;				\
+	r0 = 1;						\
+	r0 += 2;					\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";