From 0c12d9a61825a4756c21d5777142d24b04fbc6a3 Mon Sep 17 00:00:00 2001 From: Andreas Kling Date: Sat, 8 Feb 2020 00:58:11 +0100 Subject: [PATCH] IPv4: Drop incoming packets on sockets that are shut down for reading --- Kernel/Net/IPv4Socket.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Kernel/Net/IPv4Socket.cpp b/Kernel/Net/IPv4Socket.cpp index ad90567848..8ae6f9936c 100644 --- a/Kernel/Net/IPv4Socket.cpp +++ b/Kernel/Net/IPv4Socket.cpp @@ -347,6 +347,10 @@ ssize_t IPv4Socket::recvfrom(FileDescription& description, void* buffer, size_t bool IPv4Socket::did_receive(const IPv4Address& source_address, u16 source_port, KBuffer&& packet) { LOCKER(lock()); + + if (is_shut_down_for_reading()) + return false; + auto packet_size = packet.size(); if (buffer_mode() == BufferMode::Bytes) {