bpf: more tests for mixed signed and unsigned bounds checks

Add a couple of more test cases to BPF selftests that are related
to mixed signed and unsigned checks.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 48b7997c0ae7cd6dbfd75646ed7fb101a19def78..af7d173910f4b71023badb38011a27179f92fdf9 100644 (file)
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -5562,6 +5562,424 @@ static struct bpf_test tests[] = {
                .result = REJECT,
                .result_unpriv = REJECT,
        },
+       {
+               "bounds checks mixing signed and unsigned, variant 2",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
+                       BPF_MOV64_IMM(BPF_REG_8, 0),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
+                       BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R8 invalid mem access 'inv'",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 3",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4),
+                       BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
+                       BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R8 invalid mem access 'inv'",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 4",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, 1),
+                       BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 5",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
+                       BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 invalid mem access",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 6",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_2, 0),
+                       BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_6, -1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
+                       BPF_MOV64_IMM(BPF_REG_5, 0),
+                       BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_skb_load_bytes),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .errstr_unpriv = "R4 min value is negative, either use unsigned",
+               .errstr = "R4 min value is negative, either use unsigned",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 7",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 8",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024 + 1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 9",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 10",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 11",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, 0),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 12",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+                       /* Dead branch. */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 13",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -6),
+                       BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 14",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, 2),
+                       BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_7, 1),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 15",
+               .insns = {
+                       BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1,
+                                   offsetof(struct __sk_buff, mark)),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -1),
+                       BPF_MOV64_IMM(BPF_REG_8, 2),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6),
+                       BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3),
+                       BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3),
+                       BPF_JMP_IMM(BPF_JA, 0, 0, -7),
+               },
+               .fixup_map1 = { 4 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
+       {
+               "bounds checks mixing signed and unsigned, variant 16",
+               .insns = {
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                       BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                       BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                       BPF_LD_MAP_FD(BPF_REG_1, 0),
+                       BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                    BPF_FUNC_map_lookup_elem),
+                       BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
+                       BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+                       BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+                       BPF_MOV64_IMM(BPF_REG_2, -6),
+                       BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+                       BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+                       BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .fixup_map1 = { 3 },
+               .errstr_unpriv = "R0 pointer arithmetic prohibited",
+               .errstr = "R0 min value is negative",
+               .result = REJECT,
+               .result_unpriv = REJECT,
+       },
 };
 
 static int probe_filter_length(const struct bpf_insn *fp)