BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R0 tried to sub from different maps, paths, or prohibited types",
.errstr = "R0 tried to subtract pointer from scalar",
+ .result = REJECT,
},
{
"check deducing bounds from const, 2",
BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0),
BPF_EXIT_INSN(),
},
+ .errstr_unpriv = "R1 tried to sub from different maps, paths, or prohibited types",
+ .result_unpriv = REJECT,
.result = ACCEPT,
.retval = 1,
},
BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R0 tried to sub from different maps, paths, or prohibited types",
.errstr = "R0 tried to subtract pointer from scalar",
+ .result = REJECT,
},
{
"check deducing bounds from const, 4",
BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0),
BPF_EXIT_INSN(),
},
+ .errstr_unpriv = "R1 tried to sub from different maps, paths, or prohibited types",
+ .result_unpriv = REJECT,
.result = ACCEPT,
},
{
BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R0 tried to sub from different maps, paths, or prohibited types",
.errstr = "R0 tried to subtract pointer from scalar",
+ .result = REJECT,
},
{
"check deducing bounds from const, 6",
BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R0 tried to sub from different maps, paths, or prohibited types",
.errstr = "R0 tried to subtract pointer from scalar",
+ .result = REJECT,
},
{
"check deducing bounds from const, 7",
offsetof(struct __sk_buff, mark)),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R1 tried to sub from different maps, paths, or prohibited types",
.errstr = "dereference of modified ctx ptr",
+ .result = REJECT,
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
offsetof(struct __sk_buff, mark)),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R1 tried to add from different maps, paths, or prohibited types",
.errstr = "dereference of modified ctx ptr",
+ .result = REJECT,
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
+ .errstr_unpriv = "R0 tried to sub from different maps, paths, or prohibited types",
.errstr = "R0 tried to subtract pointer from scalar",
+ .result = REJECT,
},
{
"check deducing bounds from const, 10",
BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
BPF_EXIT_INSN(),
},
- .result = REJECT,
.errstr = "math between ctx pointer and register with unbounded min value is not allowed",
+ .result = REJECT,
},
.result = ACCEPT,
},
{
- "unpriv: adding of fp",
+ "unpriv: adding of fp, reg",
.insns = {
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_MOV64_IMM(BPF_REG_1, 0),
BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
BPF_EXIT_INSN(),
},
+ .errstr_unpriv = "R1 tried to add from different maps, paths, or prohibited types",
+ .result_unpriv = REJECT,
+ .result = ACCEPT,
+},
+{
+ "unpriv: adding of fp, imm",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ BPF_EXIT_INSN(),
+ },
.errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
.result_unpriv = REJECT,
.result = ACCEPT,
.fixup_map_array_48b = { 1 },
.result = ACCEPT,
.result_unpriv = REJECT,
- .errstr_unpriv = "R2 tried to add from different maps or paths",
+ .errstr_unpriv = "R2 tried to add from different maps, paths, or prohibited types",
.retval = 0,
},
{
.result = ACCEPT,
.retval = 0xabcdef12,
},
+{
+ "map access: value_ptr += N, value_ptr -= N known scalar",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
+ BPF_MOV32_IMM(BPF_REG_1, 0x12345678),
+ BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
+ BPF_MOV64_IMM(BPF_REG_1, 2),
+ BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_array_48b = { 3 },
+ .result = ACCEPT,
+ .retval = 0x12345678,
+},
{
"map access: unknown scalar += value_ptr, 1",
.insns = {