From: "H.J. Lu" <hjl.tools@gmail.com>
To: libc-alpha@sourceware.org
Cc: Florian Weimer <fweimer@redhat.com>
Subject: [PATCH v2] elf: Replace nsid with args.nsid [BZ #27609]
Date: Thu, 30 Sep 2021 11:23:11 -0700 [thread overview]
Message-ID: <20210930182311.3718571-1-hjl.tools@gmail.com> (raw)
do_dlopen calls _dl_open with nsid == __LM_ID_CALLER (-2), which calls
dl_open_worker with args.nsid = nsid. dl_open_worker updates args.nsid
if it is __LM_ID_CALLER. After dl_open_worker returns, use args.nsid
instead of nsid. This fixes BZ #27609.
---
elf/dl-open.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/elf/dl-open.c b/elf/dl-open.c
index a25443f6d1..5295e931b0 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -886,7 +886,7 @@ no more namespaces available for dlmopen()"));
/* Avoid keeping around a dangling reference to the libc.so link
map in case it has been cached in libc_map. */
if (!args.libc_already_loaded)
- GL(dl_ns)[nsid].libc_map = NULL;
+ GL(dl_ns)[args.nsid].libc_map = NULL;
/* Remove the object from memory. It may be in an inconsistent
state if relocation failed, for example. */
--
2.31.1
next reply other threads:[~2021-09-30 18:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 18:23 H.J. Lu [this message]
2021-09-30 18:27 ` Florian Weimer
2021-09-30 18:36 ` H.J. Lu
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