1 files changed, 60 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_sock.c b/tools/testing/selftests/bpf/progs/verifier_sock.c
index ee76b51005ab..d3e70e38e442 100644
--- a/tools/testing/selftests/bpf/progs/verifier_sock.c
+++ b/tools/testing/selftests/bpf/progs/verifier_sock.c
@@ -977,4 +977,64 @@ l1_%=:	r0 = *(u8*)(r7 + 0);				\
 	: __clobber_all);
 }
 
+SEC("cgroup/post_bind4")
+__description("sk->src_ip6[0] [load 1st byte]")
+__failure __msg("invalid bpf_context access off=28 size=2")
+__naked void post_bind4_read_src_ip6(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_ip6_0]);	\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_ip6_0, offsetof(struct bpf_sock, src_ip6[0]))
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("sk->mark [load mark]")
+__failure __msg("invalid bpf_context access off=16 size=2")
+__naked void post_bind4_read_mark(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_mark]);		\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_mark, offsetof(struct bpf_sock, mark))
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind6")
+__description("sk->src_ip4 [load src_ip4]")
+__failure __msg("invalid bpf_context access off=24 size=2")
+__naked void post_bind6_read_src_ip4(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_ip4]);		\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_ip4, offsetof(struct bpf_sock, src_ip4))
+	: __clobber_all);
+}
+
+SEC("cgroup/sock_create")
+__description("sk->src_port [word load]")
+__failure __msg("invalid bpf_context access off=44 size=2")
+__naked void sock_create_read_src_port(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_port]);	\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_port, offsetof(struct bpf_sock, src_port))
+	: __clobber_all);
+}
+
 char _license[] SEC("license") = "GPL";