selftests: bpf: break up test_verifier

Break up the first 10 kLoC of test verifier test cases
out into smaller files.  Looks like git line counting
gets a little flismy above 16 bit integers, so we need
two commits to break up test_verifier.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

1 files changed, 508 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/verifier/bounds.c b/tools/testing/selftests/bpf/verifier/bounds.c
new file mode 100644
index 000000000000..d55f476f2237
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bounds.c
@@ -0,0 +1,508 @@
+{
+	"subtraction bounds (map value) variant 1",
+	.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_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7),
+	BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5),
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 max value is outside of the array range",
+	.result = REJECT,
+},
+{
+	"subtraction bounds (map value) 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, 8),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6),
+	BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4),
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
+	.errstr_unpriv = "R1 has unknown scalar with mixed signed bounds",
+	.result = REJECT,
+},
+{
+	"check subtraction on pointers for unpriv",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LD_MAP_FD(BPF_REG_ARG1, 0),
+	BPF_MOV64_REG(BPF_REG_ARG2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_ARG2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_ARG2, 0, 9),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_FP),
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_0),
+	BPF_LD_MAP_FD(BPF_REG_ARG1, 0),
+	BPF_MOV64_REG(BPF_REG_ARG2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_ARG2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_ARG2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 1, 9 },
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "R9 pointer -= pointer prohibited",
+},
+{
+	"bounds check based on zero-extended MOV",
+	.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),
+	/* r2 = 0x0000'0000'ffff'ffff */
+	BPF_MOV32_IMM(BPF_REG_2, 0xffffffff),
+	/* r2 = 0 */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32),
+	/* no-op */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
+	/* access at offset 0 */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.result = ACCEPT
+},
+{
+	"bounds check based on sign-extended MOV. test1",
+	.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),
+	/* r2 = 0xffff'ffff'ffff'ffff */
+	BPF_MOV64_IMM(BPF_REG_2, 0xffffffff),
+	/* r2 = 0xffff'ffff */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32),
+	/* r0 = <oob pointer> */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
+	/* access to OOB pointer */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "map_value pointer and 4294967295",
+	.result = REJECT
+},
+{
+	"bounds check based on sign-extended MOV. test2",
+	.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),
+	/* r2 = 0xffff'ffff'ffff'ffff */
+	BPF_MOV64_IMM(BPF_REG_2, 0xffffffff),
+	/* r2 = 0xfff'ffff */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 36),
+	/* r0 = <oob pointer> */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
+	/* access to OOB pointer */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 min value is outside of the array range",
+	.result = REJECT
+},
+{
+	"bounds check based on reg_off + var_off + insn_off. test1",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_6, 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, 4),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 1),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 29) - 1),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 4 },
+	.errstr = "value_size=8 off=1073741825",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"bounds check based on reg_off + var_off + insn_off. test2",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_6, 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, 4),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 1),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 30) - 1),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 4 },
+	.errstr = "value 1073741823",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"bounds check after truncation of non-boundary-crossing range",
+	.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),
+	/* r1 = [0x00, 0xff] */
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_2, 1),
+	/* r2 = 0x10'0000'0000 */
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 36),
+	/* r1 = [0x10'0000'0000, 0x10'0000'00ff] */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	/* r1 = [0x10'7fff'ffff, 0x10'8000'00fe] */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
+	/* r1 = [0x00, 0xff] */
+	BPF_ALU32_IMM(BPF_SUB, BPF_REG_1, 0x7fffffff),
+	/* r1 = 0 */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
+	/* no-op */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* access at offset 0 */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.result = ACCEPT
+},
+{
+	"bounds check after truncation of boundary-crossing range (1)",
+	.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),
+	/* r1 = [0x00, 0xff] */
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0xffff'ff80, 0x1'0000'007f] */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0xffff'ff80, 0xffff'ffff] or
+	 *      [0x0000'0000, 0x0000'007f]
+	 */
+	BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 0),
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0x00, 0xff] or
+	 *      [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]
+	 */
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = 0 or
+	 *      [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff]
+	 */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
+	/* no-op or OOB pointer computation */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* potentially OOB access */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	/* not actually fully unbounded, but the bound is very high */
+	.errstr = "R0 unbounded memory access",
+	.result = REJECT
+},
+{
+	"bounds check after truncation of boundary-crossing range (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),
+	/* r1 = [0x00, 0xff] */
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0xffff'ff80, 0x1'0000'007f] */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0xffff'ff80, 0xffff'ffff] or
+	 *      [0x0000'0000, 0x0000'007f]
+	 * difference to previous test: truncation via MOV32
+	 * instead of ALU32.
+	 */
+	BPF_MOV32_REG(BPF_REG_1, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = [0x00, 0xff] or
+	 *      [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]
+	 */
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
+	/* r1 = 0 or
+	 *      [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff]
+	 */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
+	/* no-op or OOB pointer computation */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* potentially OOB access */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	/* not actually fully unbounded, but the bound is very high */
+	.errstr = "R0 unbounded memory access",
+	.result = REJECT
+},
+{
+	"bounds check after wrapping 32-bit addition",
+	.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, 5),
+	/* r1 = 0x7fff'ffff */
+	BPF_MOV64_IMM(BPF_REG_1, 0x7fffffff),
+	/* r1 = 0xffff'fffe */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
+	/* r1 = 0 */
+	BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 2),
+	/* no-op */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* access at offset 0 */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.result = ACCEPT
+},
+{
+	"bounds check after shift with oversized count operand",
+	.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_MOV64_IMM(BPF_REG_2, 32),
+	BPF_MOV64_IMM(BPF_REG_1, 1),
+	/* r1 = (u32)1 << (u32)32 = ? */
+	BPF_ALU32_REG(BPF_LSH, BPF_REG_1, BPF_REG_2),
+	/* r1 = [0x0000, 0xffff] */
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xffff),
+	/* computes unknown pointer, potentially OOB */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* potentially OOB access */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 max value is outside of the array range",
+	.result = REJECT
+},
+{
+	"bounds check after right shift of maybe-negative number",
+	.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),
+	/* r1 = [0x00, 0xff] */
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+	/* r1 = [-0x01, 0xfe] */
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
+	/* r1 = 0 or 0xff'ffff'ffff'ffff */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
+	/* r1 = 0 or 0xffff'ffff'ffff */
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
+	/* computes unknown pointer, potentially OOB */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* potentially OOB access */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 unbounded memory access",
+	.result = REJECT
+},
+{
+	"bounds check after 32-bit right shift with 64-bit input",
+	.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),
+	/* r1 = 2 */
+	BPF_MOV64_IMM(BPF_REG_1, 2),
+	/* r1 = 1<<32 */
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 31),
+	/* r1 = 0 (NOT 2!) */
+	BPF_ALU32_IMM(BPF_RSH, BPF_REG_1, 31),
+	/* r1 = 0xffff'fffe (NOT 0!) */
+	BPF_ALU32_IMM(BPF_SUB, BPF_REG_1, 2),
+	/* computes OOB pointer */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* OOB access */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	/* exit */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "R0 invalid mem access",
+	.result = REJECT,
+},
+{
+	"bounds check map access with off+size signed 32bit overflow. test1",
+	.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_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7ffffffe),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_A(0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "map_value pointer and 2147483646",
+	.result = REJECT
+},
+{
+	"bounds check map access with off+size signed 32bit overflow. test2",
+	.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_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_A(0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "pointer offset 1073741822",
+	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
+	.result = REJECT
+},
+{
+	"bounds check map access with off+size signed 32bit overflow. test3",
+	.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_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff),
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2),
+	BPF_JMP_A(0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "pointer offset -1073741822",
+	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
+	.result = REJECT
+},
+{
+	"bounds check map access with off+size signed 32bit overflow. test4",
+	.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_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_1, 1000000),
+	BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 1000000),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2),
+	BPF_JMP_A(0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 3 },
+	.errstr = "map_value pointer and 1000000000000",
+	.result = REJECT
+},