|
 |
00c0d4 |
commit 1e1ecea62e899acb58c3fdf3b320a0833ddd0dff
|
|
|
00c0d4 |
Author: H.J. Lu <hjl.tools@gmail.com>
|
|
|
00c0d4 |
Date: Thu Sep 30 10:29:17 2021 -0700
|
|
|
00c0d4 |
|
|
|
00c0d4 |
elf: Replace nsid with args.nsid [BZ #27609]
|
|
|
00c0d4 |
|
|
|
00c0d4 |
commit ec935dea6332cb22f9881cd1162bad156173f4b0
|
|
|
00c0d4 |
Author: Florian Weimer <fweimer@redhat.com>
|
|
|
00c0d4 |
Date: Fri Apr 24 22:31:15 2020 +0200
|
|
|
00c0d4 |
|
|
|
00c0d4 |
elf: Implement __libc_early_init
|
|
|
00c0d4 |
|
|
|
00c0d4 |
has
|
|
|
00c0d4 |
|
|
|
00c0d4 |
@@ -856,6 +876,11 @@ no more namespaces available for dlmopen()"));
|
|
|
00c0d4 |
/* See if an error occurred during loading. */
|
|
|
00c0d4 |
if (__glibc_unlikely (exception.errstring != NULL))
|
|
|
00c0d4 |
{
|
|
|
00c0d4 |
+ /* Avoid keeping around a dangling reference to the libc.so link
|
|
|
00c0d4 |
+ map in case it has been cached in libc_map. */
|
|
|
00c0d4 |
+ if (!args.libc_already_loaded)
|
|
|
00c0d4 |
+ GL(dl_ns)[nsid].libc_map = NULL;
|
|
|
00c0d4 |
+
|
|
|
00c0d4 |
|
|
|
00c0d4 |
do_dlopen calls _dl_open with nsid == __LM_ID_CALLER (-2), which calls
|
|
|
00c0d4 |
dl_open_worker with args.nsid = nsid. dl_open_worker updates args.nsid
|
|
|
00c0d4 |
if it is __LM_ID_CALLER. After dl_open_worker returns, it is wrong to
|
|
|
00c0d4 |
use nsid.
|
|
|
00c0d4 |
|
|
|
00c0d4 |
Replace nsid with args.nsid after dl_open_worker returns. This fixes
|
|
|
00c0d4 |
BZ #27609.
|
|
|
00c0d4 |
|
|
|
00c0d4 |
diff --git a/elf/dl-open.c b/elf/dl-open.c
|
|
|
00c0d4 |
index 661a2172d1789b26..b5a4da04907d8d29 100644
|
|
|
00c0d4 |
--- a/elf/dl-open.c
|
|
|
00c0d4 |
+++ b/elf/dl-open.c
|
|
|
00c0d4 |
@@ -916,7 +916,7 @@ no more namespaces available for dlmopen()"));
|
|
|
00c0d4 |
/* Avoid keeping around a dangling reference to the libc.so link
|
|
|
00c0d4 |
map in case it has been cached in libc_map. */
|
|
|
00c0d4 |
if (!args.libc_already_loaded)
|
|
|
00c0d4 |
- GL(dl_ns)[nsid].libc_map = NULL;
|
|
|
00c0d4 |
+ GL(dl_ns)[args.nsid].libc_map = NULL;
|
|
|
00c0d4 |
|
|
|
00c0d4 |
/* Remove the object from memory. It may be in an inconsistent
|
|
|
00c0d4 |
state if relocation failed, for example. */
|