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[GH-ISSUE #1320] 0.9.44.10 -> 0.9.46: libstdc++.so cannot be loaded #902

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opened 2026-05-05 07:05:51 -06:00 by gitea-mirror · 7 comments

gitea-mirror commented

2026-05-05 07:05:51 -06:00

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Originally created by @uzytkownik on GitHub (May 30, 2017).
Original GitHub issue: https://github.com/netblue30/firejail/issues/1320

I run into multiple programs failing to load C++ library under the firejail. Downgrading fixed the problem.

Originally created by @uzytkownik on GitHub (May 30, 2017). Original GitHub issue: https://github.com/netblue30/firejail/issues/1320 I run into multiple programs failing to load C++ library under the firejail. Downgrading fixed the problem.

gitea-mirror

2026-05-05 07:05:51 -06:00

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gitea-mirror commented

2026-05-05 07:06:00 -06:00

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@netblue30 commented on GitHub (May 30, 2017):

What distribution are you using?

@netblue30 commented on GitHub (May 30, 2017): What distribution are you using?

gitea-mirror commented

2026-05-05 07:06:03 -06:00

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@uzytkownik commented on GitHub (May 30, 2017):

Gentoo with gcc 6.3.0.

@uzytkownik commented on GitHub (May 30, 2017): Gentoo with gcc 6.3.0.

gitea-mirror commented

2026-05-05 07:06:07 -06:00

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@netblue30 commented on GitHub (May 30, 2017):

We had this problem about a year ago on Gentoo and we ended up commenting out "blacklist /usr/bin/gcc" line in /etc/firejail/disable-devel.inc - see #674 and #824. Go in this file and comment out (add a #) to all lines in gcc section of the file. One of them is creating the problem. If you run " find / -name libstdc++.so.6" what does it say?

@netblue30 commented on GitHub (May 30, 2017): We had this problem about a year ago on Gentoo and we ended up commenting out "blacklist /usr/bin/gcc" line in /etc/firejail/disable-devel.inc - see #674 and #824. Go in this file and comment out (add a #) to all lines in gcc section of the file. One of them is creating the problem. If you run " find / -name libstdc++.so.6" what does it say?

gitea-mirror commented

2026-05-05 07:06:09 -06:00

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@uzytkownik commented on GitHub (Jun 3, 2017):

# grep libstdc++.so.6 /var/db/pkg/sys-devel/gcc-6.3.0/CONTENTS  | awk '{print $2}'
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6
/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22
/usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22.debug
/usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22.debug
/usr/share/gdb/auto-load/usr/lib64/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22-gdb.py
/usr/share/gdb/auto-load/usr/lib64/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22-gdb.py

I commented out all lines in GCC section and it didn't helped.

@uzytkownik commented on GitHub (Jun 3, 2017): ``` # grep libstdc++.so.6 /var/db/pkg/sys-devel/gcc-6.3.0/CONTENTS | awk '{print $2}' /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6 /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22 /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6 /usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22 /usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22.debug /usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22.debug /usr/share/gdb/auto-load/usr/lib64/gcc/x86_64-pc-linux-gnu/6.3.0/libstdc++.so.6.0.22-gdb.py /usr/share/gdb/auto-load/usr/lib64/gcc/x86_64-pc-linux-gnu/6.3.0/32/libstdc++.so.6.0.22-gdb.py ``` I commented out all lines in GCC section and it didn't helped.

gitea-mirror commented

2026-05-05 07:06:14 -06:00

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@netblue30 commented on GitHub (Jun 4, 2017):

Does it work if you start the sandboxes with --noprofile? (firejail --noprofile program)

@netblue30 commented on GitHub (Jun 4, 2017): Does it work if you start the sandboxes with --noprofile? (firejail --noprofile program)

gitea-mirror commented

2026-05-05 07:06:16 -06:00

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@bitthief commented on GitHub (Jul 4, 2017):

I have also stumbled upon this problem on two different Gentoo Hardened systems trying to run KeePassXC. After some diagnosing (stracing the KeePassXC bin), I found that the issue comes from the fact that KeePassXC was trying to read /etc/ld.so.cache.
The fix was trivial, the keepassxc.profile contains the following line:
private-etc fonts
Simply changing it resolved the issue:
private-etc ld.so.cache,fonts

@bitthief commented on GitHub (Jul 4, 2017): I have also stumbled upon this problem on two different Gentoo Hardened systems trying to run KeePassXC. After some diagnosing (stracing the KeePassXC bin), I found that the issue comes from the fact that KeePassXC was trying to read /etc/ld.so.cache. The fix was trivial, the keepassxc.profile contains the following line: `private-etc fonts` Simply changing it resolved the issue: `private-etc ld.so.cache,fonts`

gitea-mirror commented

2026-05-05 07:06:18 -06:00

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@Fred-Barclay commented on GitHub (Jul 5, 2017):

Thanks @bitthief. I've changed the keepassxc profile to contain ld.so.cache in private-etc.

@uzytkownik Can you test if adding keepassxc to a profile makes a difference, and if so, can you list which profiles you're having trouble with?

@Fred-Barclay commented on GitHub (Jul 5, 2017): Thanks @bitthief. I've changed the keepassxc profile to contain `ld.so.cache` in private-etc. @uzytkownik Can you test if adding keepassxc to a profile makes a difference, and if so, can you list which profiles you're having trouble with?

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Reference: github-starred/firejail#902

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