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authorRoland McGrath <roland@gnu.org>2003-01-30 08:20:09 +0000
committerRoland McGrath <roland@gnu.org>2003-01-30 08:20:09 +0000
commit87f728411a5d6b26aee5c55a01949cda17197499 (patch)
tree7a0a95459cd773b060d194ad7c94986a8c0f7d2a /linuxthreads_db
parenta7d9b3e09243b13d6649191d907d39eacc9dbac0 (diff)
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2003-01-29 Roland McGrath <roland@redhat.com>
	* td_ta_new.c (td_ta_new): Cap the `sizeof_descr' value read from the
	inferior at `sizeof (struct _pthread_descr_struct)', since we use it
	as a length in copies to our own structures.
Diffstat (limited to 'linuxthreads_db')
-rw-r--r--linuxthreads_db/td_ta_new.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/linuxthreads_db/td_ta_new.c b/linuxthreads_db/td_ta_new.c
index 50ddf0acc3..e93d8b4c50 100644
--- a/linuxthreads_db/td_ta_new.c
+++ b/linuxthreads_db/td_ta_new.c
@@ -1,5 +1,5 @@
 /* Attach to target process.
-   Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
 
@@ -127,6 +127,9 @@ td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
     {
       if (ps_pdread (ps, addr, &(*ta)->sizeof_descr, sizeof (int)) != PS_OK)
 	goto free_return;
+      /* Don't let bogons in the inferior make us mess ourselves.  */
+      if ((*ta)->sizeof_descr > sizeof (struct _pthread_descr_struct))
+	(*ta)->sizeof_descr = sizeof (struct _pthread_descr_struct);
     }
 
   /* Now add the new agent descriptor to the list.  */