Fix #22334 - oob index in global for nds32 causing segfault ##crash

* Make imm unsigned to fix shift left UB asan bugs
radareorg · Oct 21, 2023 · 2e2f2a9 · 2e2f2a9
1 parent b15706b
commit 2e2f2a9
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/libr/arch/p/nds32/nds32-dis.h b/libr/arch/p/nds32/nds32-dis.h
@@ -103,7 +103,7 @@ static const char *mnemonic_alu21[] =
 static const char *mnemonic_br2[] =
 {
   "ifcall", "01", "beqz", "bnez", "bgez",   "bltz",   "bgtz", "blez",
-  "10",     "11", "12",   "13",   "bgezal", "bltzal"
+  "10",     "11", "12",   "13",   "bgezal", "bltzal", "b16"
 };
 
 static const char *mnemonic_misc[] =
@@ -1040,8 +1040,8 @@ print_insn32 (bfd_vma pc, disassemble_info *info, uint32_t insn)
   const int rt = RT5 (insn);
   const int ra = RA5 (insn);
   const int rb = RB5 (insn);
-  const int imm15s = IMMS (insn, 15);
-  const int imm15u = IMMU (insn, 15);
+  const unsigned int imm15s = IMMS (insn, 15);
+  const unsigned int imm15u = IMMU (insn, 15);
   uint32_t shift;
   fprintf_ftype func = info->fprintf_func;
   void *stream = info->stream;