| { |
| "invalid and of negative number", |
| .insns = { |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 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_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), |
| BPF_EXIT_INSN(), |
| }, |
| .fixup_map_hash_48b = { 3 }, |
| .errstr = "R0 max value is outside of the allowed memory range", |
| .result = REJECT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "invalid range check", |
| .insns = { |
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 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_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| BPF_MOV64_IMM(BPF_REG_9, 1), |
| BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), |
| BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), |
| BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), |
| BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), |
| BPF_MOV32_IMM(BPF_REG_3, 1), |
| BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), |
| BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), |
| BPF_MOV64_REG(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .fixup_map_hash_48b = { 3 }, |
| .errstr = "R0 max value is outside of the allowed memory range", |
| .result = REJECT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "check known subreg with unknown reg", |
| .insns = { |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_0, 32), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xFFFF1234), |
| /* Upper bits are unknown but AND above masks out 1 zero'ing lower bits */ |
| BPF_JMP32_IMM(BPF_JLT, BPF_REG_0, 1, 1), |
| BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 512), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .errstr_unpriv = "R1 !read_ok", |
| .result_unpriv = REJECT, |
| .result = ACCEPT, |
| .retval = 0 |
| }, |
