diff --git a/libr/asm/arch/hexagon/gnu/hexagon-dis.c b/libr/asm/arch/hexagon/gnu/hexagon-dis.c
index 5799004fd0..fda3fb1d2e 100644
--- a/libr/asm/arch/hexagon/gnu/hexagon-dis.c
+++ b/libr/asm/arch/hexagon/gnu/hexagon-dis.c
@@ -48,7 +48,7 @@ hexagon_dis_inst(
       if (!hexagon_dis_opcode(instrBuffer, insn, address, opcode, &errmsg)) {
         /* Some kind of error! */
         if (errmsg) {
-          (*info->fprintf_func) (info->stream, errmsg);
+          (*info->fprintf_func) (info->stream, "%s", errmsg);
           strcpy(instrBuffer, "");
         }
       }
diff --git a/libr/bin/format/objc/mach0_classes.c b/libr/bin/format/objc/mach0_classes.c
index 5d60222eb2..0de0a4418f 100644
--- a/libr/bin/format/objc/mach0_classes.c
+++ b/libr/bin/format/objc/mach0_classes.c
@@ -295,14 +295,17 @@ static void get_ivar_list_t(mach0_ut p, RBinFile *arch, RBinClass *klass) {
 		if (r != 0) {
 			struct MACH0_(obj_t) *bin = (struct MACH0_(obj_t) *) arch->o->bin_obj;
 			int is_crypted = bin->has_crypto;
-			if (r + left < r) return;
-			if (r > arch->size || r + left > arch->size) return;
-
+			if (r + left < r) {
+				goto error;
+			}
+			if (r > arch->size || r + left > arch->size) {
+				goto error;
+			}
 			if (is_crypted == 1) {
 				type = strdup ("some_encrypted_data");
-				left = strlen (name) + 1;
+			// 	left = strlen (name) + 1;
 			} else {
-				type = malloc (left);
+				type = calloc (1, left);
 				r_buf_read_at (arch->buf, r, (ut8 *)type, left);
 			}
       			field->type = strdup (type);
@@ -316,8 +319,7 @@ static void get_ivar_list_t(mach0_ut p, RBinFile *arch, RBinClass *klass) {
 	return;
 
 error:
-	R_FREE (field);
-	return;
+	r_bin_field_free (field);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/libr/core/cmd_debug.c b/libr/core/cmd_debug.c
index fe0e72c7b1..fadf884ef7 100644
--- a/libr/core/cmd_debug.c
+++ b/libr/core/cmd_debug.c
@@ -1420,9 +1420,10 @@ static int cmd_debug_map(RCore *core, const char *input) {
 				if (input[1]=='*') {
 					mode = "-r ";
 				}
-				ptr = strdup (r_str_trim_head ((char*)input + 2));
+				ptr = strdup (r_str_chop_ro (input + 2));
 				if (!ptr || !*ptr) {
 					r_core_cmd (core, "dmm", 0);
+					free (ptr);
 					break;
 				}
 				i = r_str_word_set0 (ptr);
@@ -2435,27 +2436,29 @@ static void backtrace_vars(RCore *core, RList *frames) {
 		ut64 b = f->bp ? f->bp : dbp;
 		r_reg_setv (r, bp, s);
 		r_reg_setv (r, sp, b);
-				char flagdesc[1024], flagdesc2[1024];
-				RFlagItem *fi = r_flag_get_at (core->flags, f->addr, true);
-				flagdesc[0] = flagdesc2[0] = 0;
-				if (f) {
-					if (fi->offset != f->addr) {
-						int delta = (int)(f->addr - fi->offset);
-						if (delta > 0) {
-							snprintf (flagdesc, sizeof (flagdesc),
-									"%s+%d", fi->name, delta);
-						} else if (delta < 0) {
-							snprintf (flagdesc, sizeof (flagdesc),
-									"%s%d", fi->name, delta);
-						} else {
-							snprintf (flagdesc, sizeof (flagdesc),
-									"%s", fi->name);
-						}
-					} else {
-						snprintf (flagdesc, sizeof (flagdesc),
-								"%s", fi->name);
-					}
+//////////
+		char flagdesc[1024], flagdesc2[1024];
+		RFlagItem *fi = r_flag_get_at (core->flags, f->addr, true);
+		flagdesc[0] = flagdesc2[0] = 0;
+		if (fi) {
+			if (fi->offset != f->addr) {
+				int delta = (int)(f->addr - fi->offset);
+				if (delta > 0) {
+					snprintf (flagdesc, sizeof (flagdesc),
+							"%s+%d", fi->name, delta);
+				} else if (delta < 0) {
+					snprintf (flagdesc, sizeof (flagdesc),
+							"%s%d", fi->name, delta);
+				} else {
+					snprintf (flagdesc, sizeof (flagdesc),
+							"%s", fi->name);
 				}
+			} else {
+				snprintf (flagdesc, sizeof (flagdesc),
+						"%s", fi->name);
+			}
+		}
+//////////
 		RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, f->addr, 0);
 		// char *str = r_str_newf ("[frame %d]", n);
 		r_cons_printf ("%d  0x%08"PFMT64x" sp: 0x%08"PFMT64x" %-5d"
@@ -2921,6 +2924,7 @@ static void r_core_cmd_bp(RCore *core, const char *input) {
 	case 'w': // "dbw"
 		input++; // skip 'w'
 		watch = true;
+		// passthru
 	case ' ': // "db"
 		for (p = input + 2; *p == ' '; p++);
 		if (*p == '-') {
@@ -3202,17 +3206,16 @@ static void debug_trace_calls(RCore *core, const char *input) {
 		return;
 	}
 	if (*input == ' ') {
-		ut64 first_n;
-		input = r_str_trim_head (input);
-		first_n = r_num_math (core->num, input);
+		input = r_str_chop_ro (input);
+		ut64 first_n = r_num_math (core->num, input);
 		input = strchr (input, ' ');
 		if (input) {
-			input = r_str_trim_head (input);
+			input = r_str_chop_ro (input);
 			from = first_n;
 			to = r_num_math (core->num, input);
 			input = strchr (input, ' ');
 			if (input) {
-				input = r_str_trim_head (input);
+				input = r_str_chop_ro (input);
 				final_addr = r_num_math (core->num, input);
 			}
 		} else {
diff --git a/libr/core/cmd_info.c b/libr/core/cmd_info.c
index 1b6461516c..3deeee4add 100644
--- a/libr/core/cmd_info.c
+++ b/libr/core/cmd_info.c
@@ -759,7 +759,7 @@ static int cmd_info(void *data, const char *input) {
 			break;
 		}
 		input++;
-		if ((*input == 'j' || *input == 'q') && !input[1]) {
+		if ((*input == 'j' || *input == 'q') && (input[0] && !input[1])) {
 			break;
 		}
 	}
diff --git a/libr/core/linux_heap_jemalloc.c b/libr/core/linux_heap_jemalloc.c
index ac0fad3d98..df91fd9dbb 100644
--- a/libr/core/linux_heap_jemalloc.c
+++ b/libr/core/linux_heap_jemalloc.c
@@ -234,9 +234,11 @@ static void GH(jemalloc_print_narenas)(RCore *core, const char *input) {
 		}
 		if (narenas == 0) {
 			eprintf ("No arenas allocated.\n");
+			free (stats);
 			return;
 		}
 		if (narenas == GHT_MAX) {
+			free (stats);
 			eprintf ("Cannot find narenas_total\n");
 			return;
 		}
@@ -320,6 +322,8 @@ static void GH(jemalloc_get_bins)(RCore *core, const char *input) {
 		}
 		if (!GH(r_resolve_jemalloc)(core, "je_arena_bin_info", &bin_info)) {
 			eprintf ("Error resolving je_arena_bin_info\n");
+			free (ar);
+			free (b);
 			return;    
 		}
 		if (GH(r_resolve_jemalloc)(core, "je_arenas", &arenas)) {
@@ -328,6 +332,8 @@ static void GH(jemalloc_get_bins)(RCore *core, const char *input) {
 			for (;;) {
 				r_core_read_at (core, arenas + i * sizeof (GHT), (ut8 *)&arena, sizeof (GHT));
 				if (!arena) {
+					free (ar);
+					free (b);
 					break;
 				}
 				PRINTF_YA ("   arenas[%d]: ", i++);
diff --git a/libr/debug/p/debug_windbg.c b/libr/debug/p/debug_windbg.c
index 6150eb9dc5..aaa8be4dbc 100644
--- a/libr/debug/p/debug_windbg.c
+++ b/libr/debug/p/debug_windbg.c
@@ -87,7 +87,6 @@ static RDebugReasonType r_debug_windbg_wait(RDebug *dbg, int pid) {
 			reason = R_DEBUG_REASON_INT;
 			break;
 		}
-		free (pkt);
 	}
 	free (pkt);
 	return reason;
diff --git a/libr/io/p/io_windbg.c b/libr/io/p/io_windbg.c
index 18867e7a5f..303bfd9a30 100644
--- a/libr/io/p/io_windbg.c
+++ b/libr/io/p/io_windbg.c
@@ -25,9 +25,6 @@ static bool __plugin_open(RIO *io, const char *file, bool many) {
 }
 
 static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
-	void *io_ctx;
-	WindCtx *ctx;
-
 	if (!__plugin_open (io, file, 0)) {
 		return NULL;
 	}
@@ -37,20 +34,18 @@ static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
 		return NULL;
 	}
 
-	io_ctx = iob_open (file + 9);
+	void *io_ctx = iob_open (file + 9);
 	if (!io_ctx) {
 		eprintf ("Could not open the pipe\n");
 		return NULL;
 	}
-	eprintf ("Opened pipe %s with fd %p\n", file+9, io_ctx);
-
-	ctx = windbg_ctx_new (io_ctx);
+	eprintf ("Opened pipe %s with fd %p\n", file + 9, io_ctx);
 
+	WindCtx *ctx = windbg_ctx_new (io_ctx);
 	if (!ctx) {
 		eprintf ("Failed to initialize windbg context\n");
 		return NULL;
 	}
-
 	return r_io_desc_new (&r_io_plugin_windbg, -1, file, true, mode, ctx);
 }
 
@@ -58,7 +53,6 @@ static int __write(RIO *io, RIODesc *fd, const ut8 *buf, int count) {
 	if (!fd) {
 		return -1;
 	}
-
 	if (windbg_get_target (fd->data)) {
 		ut64 va;
 		if (!windbg_va_to_pa (fd->data, io->off, &va)) {
@@ -66,7 +60,6 @@ static int __write(RIO *io, RIODesc *fd, const ut8 *buf, int count) {
 		}
 		return windbg_write_at_phys (fd->data, buf, va, count);
 	}
-
 	return windbg_write_at (fd->data, buf, io->off, count);
 }