cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

value_illegal_alu.c (2872B)

      1{
      2	"map element value illegal alu op, 1",
      3	.insns = {
      4	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
      5	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
      6	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
      7	BPF_LD_MAP_FD(BPF_REG_1, 0),
      8	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
      9	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
     10	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8),
     11	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
     12	BPF_EXIT_INSN(),
     13	},
     14	.fixup_map_hash_48b = { 3 },
     15	.errstr = "R0 bitwise operator &= on pointer",
     16	.result = REJECT,
     17},
     18{
     19	"map element value illegal alu op, 2",
     20	.insns = {
     21	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
     22	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
     23	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
     24	BPF_LD_MAP_FD(BPF_REG_1, 0),
     25	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
     26	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
     27	BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0),
     28	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
     29	BPF_EXIT_INSN(),
     30	},
     31	.fixup_map_hash_48b = { 3 },
     32	.errstr = "R0 32-bit pointer arithmetic prohibited",
     33	.result = REJECT,
     34},
     35{
     36	"map element value illegal alu op, 3",
     37	.insns = {
     38	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
     39	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
     40	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
     41	BPF_LD_MAP_FD(BPF_REG_1, 0),
     42	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
     43	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
     44	BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42),
     45	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
     46	BPF_EXIT_INSN(),
     47	},
     48	.fixup_map_hash_48b = { 3 },
     49	.errstr = "R0 pointer arithmetic with /= operator",
     50	.result = REJECT,
     51},
     52{
     53	"map element value illegal alu op, 4",
     54	.insns = {
     55	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
     56	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
     57	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
     58	BPF_LD_MAP_FD(BPF_REG_1, 0),
     59	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
     60	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
     61	BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64),
     62	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
     63	BPF_EXIT_INSN(),
     64	},
     65	.fixup_map_hash_48b = { 3 },
     66	.errstr_unpriv = "R0 pointer arithmetic prohibited",
     67	.errstr = "invalid mem access 'scalar'",
     68	.result = REJECT,
     69	.result_unpriv = REJECT,
     70	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
     71},
     72{
     73	"map element value illegal alu op, 5",
     74	.insns = {
     75	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
     76	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
     77	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
     78	BPF_LD_MAP_FD(BPF_REG_1, 0),
     79	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
     80	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
     81	BPF_MOV64_IMM(BPF_REG_3, 4096),
     82	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
     83	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
     84	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
     85	BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_2, BPF_REG_3, 0),
     86	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
     87	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
     88	BPF_EXIT_INSN(),
     89	},
     90	.fixup_map_hash_48b = { 3 },
     91	.errstr_unpriv = "leaking pointer from stack off -8",
     92	.errstr = "R0 invalid mem access 'scalar'",
     93	.result = REJECT,
     94	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
     95},