| { |
| "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, |
| }, |
