{ "read uninitialized register", .insns = { BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), BPF_EXIT_INSN(), }, .errstr = "R2 !read_ok", .result = REJECT, }, { "read invalid register", .insns = { BPF_MOV64_REG(BPF_REG_0, -1), BPF_EXIT_INSN(), }, .errstr = "R15 is invalid", .result = REJECT, }, { "program doesn't init R0 before exit", .insns = { BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), BPF_EXIT_INSN(), }, .errstr = "R0 !read_ok", .result = REJECT, }, { "program doesn't init R0 before exit in all branches", .insns = { BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), BPF_EXIT_INSN(), }, .errstr = "R0 !read_ok", .errstr_unpriv = "R1 pointer comparison", .result = REJECT, },