105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
|
{
|
||
|
|
"map element value store of cleared call register",
|
||
|
|
.insns = {
|
||
|
|
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
|
||
|
|
BPF_LD_MAP_FD(BPF_REG_1, 0),
|
||
|
|
BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
|
||
|
|
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
|
||
|
|
BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
|
||
|
|
BPF_EXIT_INSN(),
|
||
|
|
},
|
||
|
|
.fixup_map_hash_48b = { 3 },
|
||
|
|
.errstr_unpriv = "R1 !read_ok",
|
||
|
|
.errstr = "R1 !read_ok",
|
||
|
|
.result = REJECT,
|
||
|
|
.result_unpriv = REJECT,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"map element value with unaligned store",
|
||
|
|
.insns = {
|
||
|
|
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
|
||
|
|
BPF_LD_MAP_FD(BPF_REG_1, 0),
|
||
|
|
BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
|
||
|
|
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44),
|
||
|
|
BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24),
|
||
|
|
BPF_MOV64_REG(BPF_REG_7, BPF_REG_8),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24),
|
||
|
|
BPF_EXIT_INSN(),
|
||
|
|
},
|
||
|
|
.fixup_map_hash_48b = { 3 },
|
||
|
|
.errstr_unpriv = "R0 leaks addr",
|
||
|
|
.result = ACCEPT,
|
||
|
|
.result_unpriv = REJECT,
|
||
|
|
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"map element value with unaligned load",
|
||
|
|
.insns = {
|
||
|
|
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
|
||
|
|
BPF_LD_MAP_FD(BPF_REG_1, 0),
|
||
|
|
BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
|
||
|
|
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
|
||
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
|
||
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2),
|
||
|
|
BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4),
|
||
|
|
BPF_EXIT_INSN(),
|
||
|
|
},
|
||
|
|
.fixup_map_hash_48b = { 3 },
|
||
|
|
.errstr_unpriv = "R0 leaks addr",
|
||
|
|
.result = ACCEPT,
|
||
|
|
.result_unpriv = REJECT,
|
||
|
|
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"map element value is preserved across register spilling",
|
||
|
|
.insns = {
|
||
|
|
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
|
||
|
|
BPF_LD_MAP_FD(BPF_REG_1, 0),
|
||
|
|
BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
|
||
|
|
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, offsetof(struct test_val, foo)),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
|
||
|
|
BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
|
||
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
|
||
|
|
BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
|
||
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
|
||
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
|
||
|
|
BPF_EXIT_INSN(),
|
||
|
|
},
|
||
|
|
.fixup_map_hash_48b = { 3 },
|
||
|
|
.errstr_unpriv = "R0 leaks addr",
|
||
|
|
.result = ACCEPT,
|
||
|
|
.result_unpriv = REJECT,
|
||
|
|
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
|
||
|
|
},
|