** Changed in: libcap2 (Ubuntu)
Status: New => In Progress
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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:
In Progress
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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