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| {
| "invalid map_fd for function call",
| .insns = {
| BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
| BPF_ALU64_REG(BPF_MOV, 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_delete_elem),
| BPF_EXIT_INSN(),
| },
| .errstr = "fd 0 is not pointing to valid bpf_map",
| .result = REJECT,
| },
| {
| "don't check return value before access",
| .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_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
| BPF_EXIT_INSN(),
| },
| .fixup_map_hash_8b = { 3 },
| .errstr = "R0 invalid mem access 'map_value_or_null'",
| .result = REJECT,
| },
| {
| "access memory with incorrect alignment",
| .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, 1),
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
| BPF_EXIT_INSN(),
| },
| .fixup_map_hash_8b = { 3 },
| .errstr = "misaligned value access",
| .result = REJECT,
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
| },
| {
| "sometimes access memory with incorrect alignment",
| .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, 2),
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
| BPF_EXIT_INSN(),
| BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
| BPF_EXIT_INSN(),
| },
| .fixup_map_hash_8b = { 3 },
| .errstr = "R0 invalid mem access",
| .errstr_unpriv = "R0 leaks addr",
| .result = REJECT,
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
| },
|
|
