Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Alexei Starovoitov | 918 | 69.13% | 5 | 33.33% |
Daniel Borkmann | 315 | 23.72% | 4 | 26.67% |
Kumar Kartikeya Dwivedi | 75 | 5.65% | 1 | 6.67% |
Andrii Nakryiko | 13 | 0.98% | 1 | 6.67% |
Mykola Lysenko | 2 | 0.15% | 1 | 6.67% |
Björn Töpel | 2 | 0.15% | 1 | 6.67% |
Ilya Leoshkevich | 2 | 0.15% | 1 | 6.67% |
Maxim Mikityanskiy | 1 | 0.08% | 1 | 6.67% |
Total | 1328 | 15 |
{ "precise: test 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_LD_MAP_FD(BPF_REG_6, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0), BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_9, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */ BPF_MOV64_REG(BPF_REG_2, BPF_REG_9), BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_MOV64_IMM(BPF_REG_3, 0), BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .fixup_map_array_48b = { 1 }, .result = VERBOSE_ACCEPT, .errstr = "mark_precise: frame0: last_idx 26 first_idx 20\ mark_precise: frame0: regs=r2,r9 stack= before 25\ mark_precise: frame0: regs=r2,r9 stack= before 24\ mark_precise: frame0: regs=r2,r9 stack= before 23\ mark_precise: frame0: regs=r2,r9 stack= before 22\ mark_precise: frame0: regs=r2,r9 stack= before 20\ mark_precise: frame0: parent state regs=r2,r9 stack=:\ mark_precise: frame0: last_idx 19 first_idx 10\ mark_precise: frame0: regs=r2,r9 stack= before 19\ mark_precise: frame0: regs=r9 stack= before 18\ mark_precise: frame0: regs=r8,r9 stack= before 17\ mark_precise: frame0: regs=r0,r9 stack= before 15\ mark_precise: frame0: regs=r0,r9 stack= before 14\ mark_precise: frame0: regs=r9 stack= before 13\ mark_precise: frame0: regs=r9 stack= before 12\ mark_precise: frame0: regs=r9 stack= before 11\ mark_precise: frame0: regs=r9 stack= before 10\ mark_precise: frame0: parent state regs= stack=:", }, { "precise: test 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_LD_MAP_FD(BPF_REG_6, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0), BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_9, BPF_REG_0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */ BPF_MOV64_REG(BPF_REG_2, BPF_REG_9), BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */ BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_MOV64_IMM(BPF_REG_3, 0), BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .fixup_map_array_48b = { 1 }, .result = VERBOSE_ACCEPT, .flags = BPF_F_TEST_STATE_FREQ, .errstr = "26: (85) call bpf_probe_read_kernel#113\ mark_precise: frame0: last_idx 26 first_idx 22\ mark_precise: frame0: regs=r2,r9 stack= before 25\ mark_precise: frame0: regs=r2,r9 stack= before 24\ mark_precise: frame0: regs=r2,r9 stack= before 23\ mark_precise: frame0: regs=r2,r9 stack= before 22\ mark_precise: frame0: parent state regs=r2,r9 stack=:\ mark_precise: frame0: last_idx 20 first_idx 20\ mark_precise: frame0: regs=r2,r9 stack= before 20\ mark_precise: frame0: parent state regs=r2,r9 stack=:\ mark_precise: frame0: last_idx 19 first_idx 17\ mark_precise: frame0: regs=r2,r9 stack= before 19\ mark_precise: frame0: regs=r9 stack= before 18\ mark_precise: frame0: regs=r8,r9 stack= before 17\ mark_precise: frame0: parent state regs= stack=:", }, { "precise: cross frame pruning", .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), BPF_MOV64_IMM(BPF_REG_8, 0), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_MOV64_IMM(BPF_REG_8, 1), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), BPF_MOV64_IMM(BPF_REG_9, 0), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_MOV64_IMM(BPF_REG_9, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4), BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1), BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_XDP, .flags = BPF_F_TEST_STATE_FREQ, .errstr = "!read_ok", .result = REJECT, }, { "precise: ST zero to stack insn is supported", .insns = { BPF_MOV64_REG(BPF_REG_3, BPF_REG_10), BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0), /* not a register spill, so we stop precision propagation for R4 here */ BPF_ST_MEM(BPF_DW, BPF_REG_3, -8, 0), BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), BPF_MOV64_IMM(BPF_REG_0, -1), BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_XDP, .flags = BPF_F_TEST_STATE_FREQ, .errstr = "mark_precise: frame0: last_idx 5 first_idx 5\ mark_precise: frame0: parent state regs=r4 stack=:\ mark_precise: frame0: last_idx 4 first_idx 2\ mark_precise: frame0: regs=r4 stack= before 4\ mark_precise: frame0: regs=r4 stack= before 3\ mark_precise: frame0: last_idx 5 first_idx 5\ mark_precise: frame0: parent state regs=r0 stack=:\ mark_precise: frame0: last_idx 4 first_idx 2\ mark_precise: frame0: regs=r0 stack= before 4\ 5: R0=-1 R4=0", .result = VERBOSE_ACCEPT, .retval = -1, }, { "precise: STX insn causing spi > allocated_stack", .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), /* make later reg spill more interesting by having somewhat known scalar */ BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff), BPF_MOV64_REG(BPF_REG_3, BPF_REG_10), BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0), BPF_STX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, -8), BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), BPF_MOV64_IMM(BPF_REG_0, -1), BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_XDP, .flags = BPF_F_TEST_STATE_FREQ, .errstr = "mark_precise: frame0: last_idx 7 first_idx 7\ mark_precise: frame0: parent state regs=r4 stack=-8:\ mark_precise: frame0: last_idx 6 first_idx 4\ mark_precise: frame0: regs=r4 stack=-8 before 6: (b7) r0 = -1\ mark_precise: frame0: regs=r4 stack=-8 before 5: (79) r4 = *(u64 *)(r10 -8)\ mark_precise: frame0: regs= stack=-8 before 4: (7b) *(u64 *)(r3 -8) = r0\ mark_precise: frame0: parent state regs=r0 stack=:\ mark_precise: frame0: last_idx 3 first_idx 3\ mark_precise: frame0: regs=r0 stack= before 3: (55) if r3 != 0x7b goto pc+0\ mark_precise: frame0: regs=r0 stack= before 2: (bf) r3 = r10\ mark_precise: frame0: regs=r0 stack= before 1: (57) r0 &= 255\ mark_precise: frame0: parent state regs=r0 stack=:\ mark_precise: frame0: last_idx 0 first_idx 0\ mark_precise: frame0: regs=r0 stack= before 0: (85) call bpf_get_prandom_u32#7\ mark_precise: frame0: last_idx 7 first_idx 7\ mark_precise: frame0: parent state regs= stack=:", .result = VERBOSE_ACCEPT, .retval = -1, }, { "precise: mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, ingress_ifindex)), BPF_LD_MAP_FD(BPF_REG_6, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), BPF_MOV64_IMM(BPF_REG_2, 1), BPF_MOV64_IMM(BPF_REG_3, 0), BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1), BPF_MOV64_IMM(BPF_REG_2, 0x1000), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 42), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .fixup_map_ringbuf = { 1 }, .prog_type = BPF_PROG_TYPE_XDP, .flags = BPF_F_TEST_STATE_FREQ | F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, .errstr = "invalid access to memory, mem_size=1 off=42 size=8", .result = REJECT, }, { "precise: program doesn't prematurely prune branches", .insns = { BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0x400), BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0), BPF_ALU64_IMM(BPF_MOV, BPF_REG_8, 0), BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0x80000000), BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 0x401), BPF_JMP_IMM(BPF_JA, 0, 0, 0), BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 2), BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 1), BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0), BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 1), BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0), BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4), BPF_LD_MAP_FD(BPF_REG_4, 0), BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_4), BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 10), BPF_ALU64_IMM(BPF_MUL, BPF_REG_6, 8192), BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_0), BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6), BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_3, 0), BPF_EXIT_INSN(), }, .fixup_map_array_48b = { 13 }, .prog_type = BPF_PROG_TYPE_XDP, .result = REJECT, .errstr = "register with unbounded min value is not allowed", },
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