[Sony Cross-Device General] munjeni:
Oh I see a ton of selinux permission denials related to vendor symlink (which is by default symlink on our ramdisk, and we do not have seselinux problems before magisk!), some work will be need for this! I will need more crash logs from you until it get fully fixed! As for start of development related to that please add this lines to the poc script patch_things.sh to line 378 (after line $POC shell dalvikcache_data_file dir write...):

$POC resize2fs rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC toolbox unlabeled dir search $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC charge_logging rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC chargemon rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC qns rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC taimport rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC restorecon rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC post_dumper rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC font_selector_make_dir rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC audioinit rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC lostfound rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC fota-init rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC ta_qmi_service rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC sct_service rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC mlog_qmi_service rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC ssr_level rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC idd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC mss_config rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC usb_device_mode rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC illumination_service rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC config_linker rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC touchbacklightd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC bootanim rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC bootstat rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC updatemiscta rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC javadumper rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC ssr_dumper rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC mpobserver rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC kobjeventd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC xssm rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC ssuiccd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC lota rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC apfd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC gtsconfd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC cameraserver rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC audioserver rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC secd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC mediadrmserver rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC mediacodec rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1
$POC wvkbd rootfs lnk_file getattr $SEPOLICY $SEPOLICY NULL >/dev/null 2>&1

I think magisk messes up sepolicy! Didn't analysed magisk installer but definitelly he doing something very bad to sepolicy since these denials apsolutly doesn't exist on pre magisk kernel, so after installing magisk that denials happen which is indicator that something is not good with magisk! You can link this post to author of the magisk, hope he fix!