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linuxdebug/tools/testing/selftests/bpf/verifier/masking.c

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8.5 KiB
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null pointer error
2024-07-16 15:50:57 +02:00
{
"masking, test out of bounds 1",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 5),
BPF_MOV32_IMM(BPF_REG_2, 5 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 2",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 1),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 3",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0xffffffff),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 4",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0xffffffff),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 5",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, -1),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 6",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, -1),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 7",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, 5),
BPF_MOV32_IMM(BPF_REG_2, 5 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 8",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, 1),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 9",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, 0xffffffff),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 10",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, 0xffffffff),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 11",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, -1),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test out of bounds 12",
.insns = {
BPF_MOV64_IMM(BPF_REG_1, -1),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test in bounds 1",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 4),
BPF_MOV32_IMM(BPF_REG_2, 5 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 4,
},
{
"masking, test in bounds 2",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test in bounds 3",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0xfffffffe),
BPF_MOV32_IMM(BPF_REG_2, 0xffffffff - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0xfffffffe,
},
{
"masking, test in bounds 4",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0xabcde),
BPF_MOV32_IMM(BPF_REG_2, 0xabcdef - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0xabcde,
},
{
"masking, test in bounds 5",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 0),
BPF_MOV32_IMM(BPF_REG_2, 1 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},
{
"masking, test in bounds 6",
.insns = {
BPF_MOV32_IMM(BPF_REG_1, 46),
BPF_MOV32_IMM(BPF_REG_2, 47 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_1),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 46,
},
{
"masking, test in bounds 7",
.insns = {
BPF_MOV64_IMM(BPF_REG_3, -46),
BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, -1),
BPF_MOV32_IMM(BPF_REG_2, 47 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_3),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_3),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_3, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 46,
},
{
"masking, test in bounds 8",
.insns = {
BPF_MOV64_IMM(BPF_REG_3, -47),
BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, -1),
BPF_MOV32_IMM(BPF_REG_2, 47 - 1),
BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_3),
BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_3),
BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
BPF_ALU64_IMM(BPF_ARSH, BPF_REG_2, 63),
BPF_ALU64_REG(BPF_AND, BPF_REG_3, BPF_REG_2),
BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.retval = 0,
},