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