patch-2.4.19 linux-2.4.19/arch/ia64/ia32/ia32_traps.c

• Lines: 30
• Date: Fri Aug 2 17:39:42 2002
• Orig file: linux-2.4.18/arch/ia64/ia32/ia32_traps.c
• Orig date: Fri Nov 9 14:26:17 2001

diff -urN linux-2.4.18/arch/ia64/ia32/ia32_traps.c linux-2.4.19/arch/ia64/ia32/ia32_traps.c
@@ -2,7 +2,7 @@
  * IA-32 exception handlers
  *
  * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 2001 Hewlett-Packard Co
+ * Copyright (C) 2001-2002 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  *
  * 06/16/00	A. Mallick	added siginfo for most cases (close to IA32)
@@ -40,7 +40,11 @@
 {
 	struct siginfo siginfo;
 
+	/* initialize these fields to avoid leaking kernel bits to user space: */
 	siginfo.si_errno = 0;
+	siginfo.si_flags = 0;
+	siginfo.si_isr = 0;
+	siginfo.si_imm = 0;
 	switch ((isr >> 16) & 0xff) {
 	      case 1:
 	      case 2:
@@ -103,6 +107,8 @@
 			 * and it will suffer the consequences since we won't be able to
 			 * fully reproduce the context of the exception
 			 */
+			siginfo.si_isr = isr;
+			siginfo.si_flags = __ISR_VALID;
 			switch(((~fcr) & (fsr & 0x3f)) | (fsr & 0x240)) {
 				case 0x000:
 				default: