[Samsung Gear S3] adfree:
Still have problems to bypass all Security crap... :crying:

Need to spend some time wirh reading... and Google.

Something like this:

https://iot.bzh/download/public/2015/tizen-security-lessons-learnt-initial.pdf

https://conference.hitb.org/hitbsec...EPAPER-Hacking-Tizen-The-OS-of-Everything.pdf

https://conference.hitb.org/hitbsec...braham-Hacking-Tizen-The-OS-of-Everything.pdf

Cynara

https://wiki.tizen.org/Security:Cynara

https://lwn.net/Articles/602060/

https://github.com/Samsung/cynara

Hmmmm... maybe closer to SMACK cr..:

ConditionSecurity=[COLOR="Red"]smack[/COLOR]

https://wiki.tizen.org/Security/Tizen_2.X_systemd

https://wiki.tizen.org/Security/Tizen_2.X_Smack_Developer_Guide

https://www.kernel.org/doc/Documentation/security/Smack.txt

https://github.com/smack-team/smack/pull/125

https://montecristosoftware.eu/matteo/systemd/commit/217f95db7be3eee6e2b3998cdfd2e86df2c2c66b

sh-3.2# askuser-test
cynara_admin_initialize: Operation failed
sh-3.2# askuser-test --help
crashed [1577523950] processname=askuser-test, pid=3092, tid=3092, signal=11Segmentation fault (core dumped)

sh-3.2# askuser-tests
←[0;32m[==========] ←[mRunning 4 tests from 3 test cases.
←[0;32m[----------] ←[mGlobal test environment set-up.
←[0;32m[----------] ←[m1 test from Exception
←[0;32m[ RUN ] ←[mException.inherit_publicly_from_std_exception
←[0;32m[ OK ] ←[mException.inherit_publicly_from_std_exception
←[0;32m[----------] ←[m1 test from CynaraException
←[0;32m[ RUN ] ←[mCynaraException.inherit_publicly_from_std_exception
←[0;32m[ OK ] ←[mCynaraException.inherit_publicly_from_std_exception
←[0;32m[----------] ←[m2 tests from TranslatorTest
←[0;32m[ RUN ] ←[mTranslatorTest.PluginData_Strings
←[0;32m[ OK ] ←[mTranslatorTest.PluginData_Strings
←[0;32m[ RUN ] ←[mTranslatorTest.NotificationRequest
←[0;32m[ OK ] ←[mTranslatorTest.NotificationRequest
←[0;32m[----------] ←[mGlobal test environment tear-down
←[0;32m[==========] ←[m4 tests from 3 test cases ran.
←[0;32m[ PASSED ] ←[m4 tests.
sh-3.2# app-restriction-server --help
app-restriction-server: /home/abuild/rpmbuild/BUILD/app-restriction-server-0.0.1/src/app-restriction-main.c:65: main: Assertion `0' failed.
crashed [1577524085] processname=app-restriction-server, pid=3113, tid=3113, signal=6[sys-assert] can't find symtab
Aborted (core dumped)
sh-3.2# cynara --help
Usage: cynara [OPTIONS]

Information mode options [program exits after printing information]:
-V, --version print version of cynara and exit
-h, --help print this help message and exit
Normal work mode options:
-d, --daemon daemonize [by default cynara does not daemonize]
-m, --mask=MASK set umask to MASK [by default no umask is set]
-u, --user=USER change user to USER [by default uid is not changed]
-g, --group=GROUP change group to GROUP [by default gid is not changed]

Edit 1.

Tests on my SM-R760 FTMA BQC2...

sh-3.2# mount -vo remount,rw /
/dev/mmcblk0p14 on / type ext4 (rw)
sh-3.2# chsmack --help
Usage: chsmack [options] <path>
options:
-v --version output version information and exit
-h --help output usage information and exit
-a --access set/remove security.SMACK64
-e --exec set/remove security.SMACK64EXEC
-m --mmap set/remove security.SMACK64MMAP
-t --transmute set/remove security.SMACK64TRANSMUTE
-d --remove tell to remove the attribute
-L --dereference tell to follow the symbolic links
sh-3.2# chsmack -d /bin/echo
sh-3.2# chsmack /bin/echo
/bin/echo access="_"
sh-3.2# chsmack -e "System" /bin/echo

sh-3.2# chsmack /bin/echo
/bin/echo access="_" execute="System"
sh-3.2# chsmack -e "" /bin/echo
chsmack: exec: "" is an invalid Smack label.
sh-3.2# chsmack -d /bin/echo
sh-3.2# chsmack /bin/echo
/bin/echo access="_"

Edit 2.

Maybe dm-verity crap from other devices helpfull...

https://xdaforums.com/android/software/universal-dm-verity-forceencrypt-t3817389

Edit 3.

Nice Helper... for chmod permission adventure...

https://www.weijers.net/unix/chmod.php?method=one