From d9195db871b11e139050dfa00e333ca8b2f7a677 Mon Sep 17 00:00:00 2001 From: Gary Benson Date: Fri, 17 Aug 2012 11:44:37 +0100 Subject: [PATCH] Also set r->r_map when unmapping the first object in a namespace. When unmapping the first object in a namespace, the runtime linker did not update the externally visible pointer. This resulted in debuggers seeing pointers to memory that had been freed. --- ChangeLog | 5 +++++ elf/dl-close.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 6cb87f2..ba4ea36 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2012-08-16 Gary Benson + + * elf/dl-close.c (_dl_close_worker): Also set r->r_map when + unmapping the first object in a namespace. + 2012-08-16 Roland McGrath * inet/getnetgrent_r.c (internal_setnetgrent): Renamed to ... diff --git a/elf/dl-close.c b/elf/dl-close.c index 45b2187..216bd81 100644 --- a/elf/dl-close.c +++ b/elf/dl-close.c @@ -641,7 +641,7 @@ _dl_close_worker (struct link_map *map) #ifdef SHARED assert (nsid != LM_ID_BASE); #endif - ns->_ns_loaded = imap->l_next; + r->r_map = ns->_ns_loaded = imap->l_next; } --ns->_ns_nloaded; -- 2.7.4