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| {
| "direct stack access with 32-bit wraparound. test1",
| .insns = {
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
| BPF_MOV32_IMM(BPF_REG_0, 0),
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
| BPF_EXIT_INSN(),
| },
| .errstr = "fp pointer and 2147483647",
| .result = REJECT
| },
| {
| "direct stack access with 32-bit wraparound. test2",
| .insns = {
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff),
| BPF_MOV32_IMM(BPF_REG_0, 0),
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
| BPF_EXIT_INSN(),
| },
| .errstr = "fp pointer and 1073741823",
| .result = REJECT
| },
| {
| "direct stack access with 32-bit wraparound. test3",
| .insns = {
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff),
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff),
| BPF_MOV32_IMM(BPF_REG_0, 0),
| BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
| BPF_EXIT_INSN(),
| },
| .errstr = "fp pointer offset 1073741822",
| .errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
| .result = REJECT
| },
|
|
