new file mode 100644
@@ -0,0 +1,323 @@
+#ifdef CONFIG_BPF_PROG_KASAN
+{
+ "sanitize stx: dst is R1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, MAX_BPF_REG),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -8, 1),
+ },
+},
+{
+ "sanitize stx: dst is R0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, -8, 1),
+ },
+},
+{
+ "sanitize stx: dst is R10",
+ .insns = {
+ BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .unexpected_insns = {
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ },
+},
+{
+ "sanitize stx: dst is other regs",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ },
+},
+{
+ "sanitize ldx: src is R1, dst is R0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+ },
+},
+{
+ "sanitize ldx: src is R1, dst is R1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, -8),
+ },
+},
+{
+ "sanitize ldx: src is R1, dst is other regs",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_1, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
+ },
+},
+{
+ "sanitize ldx: src is R0, dst is R1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+ },
+},
+{
+ "sanitize ldx: src is R0, dst is R0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, -8),
+ },
+},
+{
+ "sanitize ldx: src is R0, dst is other regs",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_0, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, -8),
+ },
+},
+{
+ "sanitize ldx: src is other regs, dst is R0",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 1, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
+ },
+},
+{
+ "sanitize ldx: src is other regs, dst is R1",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -8),
+ },
+},
+{
+ "sanitize ldx: src is other regs, dst is self",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+ },
+},
+{
+ "sanitize ldx: src is other regs, dst is other regs",
+ .insns = {
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 1),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_2, -8),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 1, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .retval = 1,
+ .expected_insns = {
+ BPF_MOV64_REG(MAX_BPF_REG, BPF_REG_1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+ BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+ BPF_EMIT_CALL(INSN_IMM_MASK),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
+ BPF_MOV64_REG(BPF_REG_1, MAX_BPF_REG),
+ BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_2, -8),
+ },
+},
+#endif /* CONFIG_BPF_PROG_KASAN */