File crash-verify-exception-frame-accessible-for-all-verify-requests.patch of Package crash.23106

Index: b/x86_64.c
===================================================================
--- a/x86_64.c
+++ b/x86_64.c
@@ -4386,15 +4386,20 @@ x86_64_exception_frame(ulong flags, ulon
         long r8, r9, r10, r11, r12, r13, r14, r15;
 	struct machine_specific *ms;
 	struct syment *sp;
-	ulong offset;
+	ulong offset, verify_addr;
 	char *pt_regs_buf;
 	long verified;
 	long err;
 	char buf[BUFSIZE];
 
-	if (flags == EFRAME_VERIFY) {
-		if (!accessible(kvaddr) || 
-		    !accessible(kvaddr + SIZE(pt_regs) - sizeof(long)))
+	if (flags & EFRAME_VERIFY) {
+		if (kvaddr)
+			verify_addr = kvaddr;
+		else
+			verify_addr = (local - bt->stackbuf) + bt->stackbase;
+
+		if (!accessible(verify_addr) || 
+			!accessible(verify_addr + SIZE(pt_regs) - sizeof(long)))
 			return FALSE;
 	}