This bug was fixed in the package libcap2 - 1:2.66-3ubuntu2
---------------
libcap2 (1:2.66-3ubuntu2) lunar; urgency=medium
* Skip the test uns_test to fix autopkgtest on armhf.
It's failing on armhf because we are using an older kernel in the armhf
builders. This test succeeds on newer versions. Once we upgrade our
hosts this patch can be dropped. See LP#2003892
-- Danilo Egea Gondolfo <danilo.egea.gondo...@canonical.com> Fri, 03
Feb 2023 11:18:40 +0000
** Changed in: libcap2 (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/2003892
Title:
libcap2 seems to not work correctly when linked with -Bsymbolic-
functions
Status in libcap2 package in Ubuntu:
Fix Released
Bug description:
Ubuntu will include -Wl,-Bsymbolic-functions in the build flags by
default. This option seems to break libcap2.
One of the autopkgtests that is supposed to prevent an exploitation
instance using capabilities fails:
https://autopkgtest.ubuntu.com/results/autopkgtest-
lunar/lunar/amd64/libc/libcap2/20230123_094238_95088@/log.gz
The solution is to exclude this flag from the set of flags:
debian/rules:
export DEB_LDFLAGS_MAINT_STRIP = -Wl,-Bsymbolic-functions
Debian seems to not be affected by that as they don't include this
flag in their build:
https://buildd.debian.org/status/fetch.php?pkg=libcap2&arch=amd64&ver=1%3A2.66-3&stamp=1671660323&raw=0
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libcap2/+bug/2003892/+subscriptions
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