From de8d4203109ae04c05a716c1afb2d5a487e9b1fe Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Sun, 7 Feb 2021 13:23:34 +1030
Subject: asan: unwind-ia64.c: stack buffer overflow

Printing "invalid" is better than printing an uninitialised buffer
and occasionally running off the end of the buffer.

	* unwind-ia64.c (unw_print_xyreg): Don't leave output buffer
	uninitialised on invalid input.
---
 binutils/unwind-ia64.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'binutils/unwind-ia64.c')

diff --git a/binutils/unwind-ia64.c b/binutils/unwind-ia64.c
index 6eef917..fb22f3f 100644
--- a/binutils/unwind-ia64.c
+++ b/binutils/unwind-ia64.c
@@ -156,6 +156,10 @@ unw_print_xyreg (char *cp, unsigned int x, unsigned int ytreg)
     case 2: /* br */
       sprintf (cp, "b%u", (ytreg & 0x1f));
       break;
+
+    default:
+      strcpy (cp, "invalid");
+      break;
     }
 }
 
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