Segmentation faults in applications because of only non-existent paths in *LD_LIBRARY_PATH* no longer happen
Previously, when the *LD_LIBRARY_PATH* environment variable contained only non-existent paths, the dynamic loader produced a segmentation fault. Consequently, applications terminated unexpectedly with a segmentation fault at startup in the described situation. The dynamic loader has been fixed. As a result, applications no longer terminate unexpectedly in the described situation.
Note that updating the _glibc_ package is enough to fix this bug for any affected applications.
Description of problem:
Opening this bug as an offshoot of the following BZ. The bug report below was originally opened against tigervnc-server, but the problem is actually localized to the glibc package:
1413085 - tigervnc-server segmentation fault
This has been observed within the Fedora 21 release, and addressed:
1184234 - apparent glibc bug causes gnucash to segfault on startup when LD_LIBRARY_PATH is set to nonexistent directory
Version-Release number of selected component (if applicable):
glibc-2.17-157.el7_3.1.x86_64
How reproducible:
Simple
Steps to Reproduce:
1. Set an invalid LD_LIBRARY_PATH
# export LD_LIBRARY_PATH=/pathtonothing
2. Start the vncserver
# vncserver -geometry 1280x1024"
3.
Actual results:
Segfault
Expected results:
Graceful continue or exit
Additional info:
The upstream issue has been reported in:
15378 – Segmentation fault when LD_LIBRARY_PATH contains (only) non-existings paths
https://sourceware.org/bugzilla/show_bug.cgi?id=15378
Thanks for reporting this. We will be looking at this bug as part of our review for RHEL 7.5. If you need a fix sooner please add more information to this bug report. The immediate workaround is to set LD_LIBRARY_PATH in such a way as to avoid the issue.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2018:0805
Description of problem: Opening this bug as an offshoot of the following BZ. The bug report below was originally opened against tigervnc-server, but the problem is actually localized to the glibc package: 1413085 - tigervnc-server segmentation fault This has been observed within the Fedora 21 release, and addressed: 1184234 - apparent glibc bug causes gnucash to segfault on startup when LD_LIBRARY_PATH is set to nonexistent directory Version-Release number of selected component (if applicable): glibc-2.17-157.el7_3.1.x86_64 How reproducible: Simple Steps to Reproduce: 1. Set an invalid LD_LIBRARY_PATH # export LD_LIBRARY_PATH=/pathtonothing 2. Start the vncserver # vncserver -geometry 1280x1024" 3. Actual results: Segfault Expected results: Graceful continue or exit Additional info: The upstream issue has been reported in: 15378 – Segmentation fault when LD_LIBRARY_PATH contains (only) non-existings paths https://sourceware.org/bugzilla/show_bug.cgi?id=15378