[ISSUE] Logcat: "AudioFlinger: read failed: framesRead=0" when blocking "Filter Provider" through AFWall+ (phone calls stop working)

[grasmanek94]

Describe the bug Phone calls through 3g/LTE stop working (can hear the other side, but other side doesn't hear me) after blocking 'Filter Provider' in AFWall+. In logcat the following error appears: "AudioFlinger: read failed: framesRead=0"

Firewall Logs IPv4rules.log

Smartphone (please complete the following information):

• Device: Samsung S21+ (Exynos)
• Android OS: Android 14

Additional context I have setup whitelist instead of blacklist, and I didn't white list 'Filter Provider'. Maybe add a note to whitelist this on Samsung (and maybe other) devices?

It also doesn't matter if I only give access to LAN, or only to WiFi, or only to Data, as long as AFWall+ is blocking any Filter Provider component, the microphone will fail to work in calls.