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* [Bug dynamic-link/20802] getauxval NULL pointer dereference after static dlopen
[not found] <bug-20802-131@http.sourceware.org/bugzilla/>
@ 2020-12-22 17:01 ` fweimer at redhat dot com
2021-05-23 11:18 ` fweimer at redhat dot com
1 sibling, 0 replies; 2+ messages in thread
From: fweimer at redhat dot com @ 2020-12-22 17:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=20802
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at sourceware dot org |fweimer at redhat dot com
CC| |fweimer at redhat dot com
Status|NEW |ASSIGNED
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* [Bug dynamic-link/20802] getauxval NULL pointer dereference after static dlopen
[not found] <bug-20802-131@http.sourceware.org/bugzilla/>
2020-12-22 17:01 ` [Bug dynamic-link/20802] getauxval NULL pointer dereference after static dlopen fweimer at redhat dot com
@ 2021-05-23 11:18 ` fweimer at redhat dot com
1 sibling, 0 replies; 2+ messages in thread
From: fweimer at redhat dot com @ 2021-05-23 11:18 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=20802
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Target Milestone|--- |2.34
Resolution|--- |FIXED
--- Comment #2 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for all architectures for glibc 2.34 via:
commit 78b31cc8341ab8268c468cd0f4f988d1d7862a55
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon May 17 09:59:14 2021 +0200
elf: Partially initialize ld.so after static dlopen (bug 20802)
After static dlopen, a copy of ld.so is loaded into the inner
namespace, but that copy is not initialized at all. Some
architectures run into serious problems as result, which is why the
_dl_var_init mechanism was invented. With libpthread moving into
libc and parts into ld.so, more architectures impacted, so it makes
sense to switch to a generic mechanism which performs the partial
initialization.
As a result, getauxval now works after static dlopen (bug 20802).
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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2020-12-22 17:01 ` [Bug dynamic-link/20802] getauxval NULL pointer dereference after static dlopen fweimer at redhat dot com
2021-05-23 11:18 ` fweimer at redhat dot com
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