306 lines
9.7 KiB
C
306 lines
9.7 KiB
C
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{
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"raw_stack: no skb_load_bytes",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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/* Call to skb_load_bytes() omitted. */
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "invalid read from stack R6 off=-8 size=8",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, negative len",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, -8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R4 min value is negative",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, negative len 2",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, ~0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R4 min value is negative",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, zero len",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "invalid zero-sized read",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, no init",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, init",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, spilled regs around bounds",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
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BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
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BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
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offsetof(struct __sk_buff, mark)),
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
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offsetof(struct __sk_buff, priority)),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, spilled regs corruption",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
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offsetof(struct __sk_buff, mark)),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R0 invalid mem access 'scalar'",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
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},
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{
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"raw_stack: skb_load_bytes, spilled regs corruption 2",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
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BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
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BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
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BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
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offsetof(struct __sk_buff, mark)),
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
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offsetof(struct __sk_buff, priority)),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
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BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3,
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offsetof(struct __sk_buff, pkt_type)),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R3 invalid mem access 'scalar'",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
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},
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{
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"raw_stack: skb_load_bytes, spilled regs + data",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
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BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
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BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
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BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
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BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
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offsetof(struct __sk_buff, mark)),
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
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offsetof(struct __sk_buff, priority)),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
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BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, invalid access 1",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "invalid indirect access to stack R3 off=-513 size=8",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, invalid access 2",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 8),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "invalid indirect access to stack R3 off=-1 size=8",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, invalid access 3",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R4 min value is negative",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, invalid access 4",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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{
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"raw_stack: skb_load_bytes, invalid access 5",
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.insns = {
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BPF_MOV64_IMM(BPF_REG_2, 4),
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BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
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BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
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BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
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BPF_EXIT_INSN(),
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},
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.result = REJECT,
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.errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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},
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||
|
|
{
|
||
|
|
"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 zero-sized read",
|
||
|
|
.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,
|
||
|
|
},
|