{ "stack out of bounds", .insns = { BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), BPF_EXIT_INSN(), }, .errstr = "invalid stack", .result = REJECT, }, { "uninitialized stack1", .insns = { 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_EXIT_INSN(), }, .fixup_map_hash_8b = { 2 }, .errstr = "invalid indirect read from stack", .result = REJECT, }, { "uninitialized stack2", .insns = { BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), BPF_EXIT_INSN(), }, .errstr = "invalid read from stack", .result = REJECT, }, { "invalid fp arithmetic", /* If this gets ever changed, make sure JITs can deal with it. */ .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), BPF_EXIT_INSN(), }, .errstr = "R1 subtraction from stack pointer", .result = REJECT, }, { "non-invalid fp arithmetic", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "misaligned read from stack", .insns = { BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), BPF_EXIT_INSN(), }, .errstr = "misaligned stack access", .result = REJECT, },