| { | |
| "raw_stack: no skb_load_bytes", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| /* Call to skb_load_bytes() omitted. */ | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid read from stack off -8+0 size 8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, negative len", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, -8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, negative len 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, ~0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, zero len", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, no init", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, init", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs around bounds", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs corruption", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R0 invalid mem access 'inv'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
| offsetof(struct __sk_buff, pkt_type)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R3 invalid mem access 'inv'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, spilled regs + data", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
| BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
| offsetof(struct __sk_buff, mark)), | |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
| offsetof(struct __sk_buff, priority)), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 1", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-513 access_size=8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 2", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 8), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-1 access_size=8", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 3", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 min value is negative", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 4", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 5", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, invalid access 6", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 0), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = REJECT, | |
| .errstr = "invalid stack type R3 off=-512 access_size=0", | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, | |
| { | |
| "raw_stack: skb_load_bytes, large access", | |
| .insns = { | |
| BPF_MOV64_IMM(BPF_REG_2, 4), | |
| BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
| BPF_MOV64_IMM(BPF_REG_4, 512), | |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), | |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
| BPF_EXIT_INSN(), | |
| }, | |
| .result = ACCEPT, | |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
| }, |