| { |
| "map element value is preserved across register spilling", |
| .insns = { |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), |
| BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), |
| BPF_EXIT_INSN(), |
| }, |
| .fixup_map_hash_48b = { 3 }, |
| .errstr_unpriv = "R0 leaks addr", |
| .result = ACCEPT, |
| .result_unpriv = REJECT, |
| }, |
| { |
| "map element value or null is marked on register spilling", |
| .insns = { |
| BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| BPF_LD_MAP_FD(BPF_REG_1, 0), |
| BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), |
| BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), |
| BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), |
| BPF_EXIT_INSN(), |
| }, |
| .fixup_map_hash_48b = { 3 }, |
| .errstr_unpriv = "R0 leaks addr", |
| .result = ACCEPT, |
| .result_unpriv = REJECT, |
| }, |
