{ "PTR_TO_STACK store/load", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 0xfaceb00c, }, { "PTR_TO_STACK store/load - bad alignment on off", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8", }, { "PTR_TO_STACK store/load - bad alignment on reg", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8", }, { "PTR_TO_STACK store/load - out of bounds low", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off=-79992 size=8", .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", }, { "PTR_TO_STACK store/load - out of bounds high", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off=0 size=8", }, { "PTR_TO_STACK check high 1", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK check high 2", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ST_MEM(BPF_B, BPF_REG_1, -1, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, -1), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK check high 3", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0), BPF_ST_MEM(BPF_B, BPF_REG_1, -1, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, -1), BPF_EXIT_INSN(), }, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .result_unpriv = REJECT, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK check high 4", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .errstr = "invalid stack off=0 size=1", .result = REJECT, }, { "PTR_TO_STACK check high 5", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, (1 << 29) - 1), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off", }, { "PTR_TO_STACK check high 6", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, (1 << 29) - 1), BPF_ST_MEM(BPF_B, BPF_REG_1, SHRT_MAX, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, SHRT_MAX), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off", }, { "PTR_TO_STACK check high 7", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, (1 << 29) - 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, (1 << 29) - 1), BPF_ST_MEM(BPF_B, BPF_REG_1, SHRT_MAX, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, SHRT_MAX), BPF_EXIT_INSN(), }, .result = REJECT, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .errstr = "fp pointer offset", }, { "PTR_TO_STACK check low 1", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -512), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK check low 2", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -513), BPF_ST_MEM(BPF_B, BPF_REG_1, 1, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 1), BPF_EXIT_INSN(), }, .result_unpriv = REJECT, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK check low 3", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -513), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .errstr = "invalid stack off=-513 size=1", .result = REJECT, }, { "PTR_TO_STACK check low 4", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, INT_MIN), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "math between fp pointer", }, { "PTR_TO_STACK check low 5", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -((1 << 29) - 1)), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off", }, { "PTR_TO_STACK check low 6", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -((1 << 29) - 1)), BPF_ST_MEM(BPF_B, BPF_REG_1, SHRT_MIN, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, SHRT_MIN), BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid stack off", }, { "PTR_TO_STACK check low 7", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -((1 << 29) - 1)), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -((1 << 29) - 1)), BPF_ST_MEM(BPF_B, BPF_REG_1, SHRT_MIN, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, SHRT_MIN), BPF_EXIT_INSN(), }, .result = REJECT, .errstr_unpriv = "R1 stack pointer arithmetic goes out of range", .errstr = "fp pointer offset", }, { "PTR_TO_STACK mixed reg/k, 1", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -3), BPF_MOV64_IMM(BPF_REG_2, -3), BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK mixed reg/k, 2", .insns = { BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0), BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -3), BPF_MOV64_IMM(BPF_REG_2, -3), BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_MOV64_REG(BPF_REG_5, BPF_REG_10), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_5, -6), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "PTR_TO_STACK mixed reg/k, 3", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -3), BPF_MOV64_IMM(BPF_REG_2, -3), BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = -3, }, { "PTR_TO_STACK reg", .insns = { BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), BPF_MOV64_IMM(BPF_REG_2, -3), BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .retval = 42, }, { "stack pointer arithmetic", .insns = { BPF_MOV64_IMM(BPF_REG_1, 4), BPF_JMP_IMM(BPF_JA, 0, 0, 0), BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1), BPF_ST_MEM(0, BPF_REG_2, 4, 0), BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), BPF_ST_MEM(0, BPF_REG_2, 4, 0), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, },