66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
{
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"invalid map_fd for function call",
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.insns = {
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BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
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BPF_EXIT_INSN(),
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},
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.errstr = "fd 0 is not pointing to valid bpf_map",
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.result = REJECT,
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},
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{
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"don't check return value before access",
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.insns = {
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BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
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BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
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BPF_EXIT_INSN(),
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},
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.fixup_map_hash_8b = { 3 },
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.errstr = "R0 invalid mem access 'map_value_or_null'",
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.result = REJECT,
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},
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{
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"access memory with incorrect alignment",
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.insns = {
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BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
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BPF_EXIT_INSN(),
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},
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.fixup_map_hash_8b = { 3 },
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.errstr = "misaligned value access",
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.result = REJECT,
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.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
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},
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{
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"sometimes access memory with incorrect alignment",
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.insns = {
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BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
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BPF_EXIT_INSN(),
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BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
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BPF_EXIT_INSN(),
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},
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.fixup_map_hash_8b = { 3 },
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.errstr = "R0 invalid mem access",
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.errstr_unpriv = "R0 leaks addr",
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.result = REJECT,
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.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
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},
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