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Bug 1812757 - dlopen()ing a DT_FILTER library crashes if filtee has constructor
Summary: dlopen()ing a DT_FILTER library crashes if filtee has constructor
Keywords:
Status: CLOSED DUPLICATE of bug 1812756
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: glibc
Version: 8.1
Hardware: Unspecified
OS: Linux
high
high
Target Milestone: rc
: 8.0
Assignee: glibc team
QA Contact: qe-baseos-tools-bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-03-12 05:34 UTC by Divya
Modified: 2023-07-18 14:30 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-03-12 21:13:08 UTC
Type: Bug
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Sourceware 16272 0 P2 RESOLVED dlopen()ing a DT_FILTER library crashes if filtee has constructor 2020-03-12 05:34:20 UTC

Description Divya 2020-03-12 05:34:21 UTC 
Description of problem:
Linking DSOs with  g++ --Wl,--filter=someDSO.so, and DSO produced can't be dlopened or feeded to ldd

$  ldd someDSO.so
Inconsistency detected by ld.so: dl-deps.c: 553: _dl_map_object_deps: Assertion `map->l_searchlist.r_list[0] == map' failed!


Version-Release number of selected component (if applicable):
glibc-2.28

How reproducible:
Always

Steps to Reproduce:
1. Set  DT_FILTER to a shared library as below: 

$ g++ --Wl,--filter=someDSO.so

2. Load the library using dlopen or just do ldd on it: 

$  ldd someDSO.so
Inconsistency detected by ld.so: dl-deps.c: 553: _dl_map_object_deps: Assertion `map->l_searchlist.r_list[0] == map' failed!



Actual results:
Crashes with Assertion message as below: 
Inconsistency detected by ld.so: dl-deps.c: 553: _dl_map_object_deps: Assertion `map->l_searchlist.r_list[0] == map' failed!

Expected results:
Library should load without any error/problem with DT_FILTER set to it.

Additional info:
Issue is reported in upstream at https://sourceware.org/bugzilla/show_bug.cgi?id=16272. 

I had provided a test package to the customer including fix from the upstream bugzilla and customer has confirmed that it fixes the issue.
Comment 1 Carlos O'Donell 2020-03-12 21:13:08 UTC 

*** This bug has been marked as a duplicate of bug 1812756 ***
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