|  | { | 
|  | "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, | 
|  | }, |