mptcp: fix double-free on socket dismantle
JIRA: https://issues.redhat.com/browse/RHEL-22775
JIRA: https://issues.redhat.com/browse/RHEL-31844
CVE: CVE-2024-26782
Upstream Status: all mainline in net.git
Tested: boot-tested only
Conflicts: None
Signed-off-by: Davide Caratti dcaratti@redhat.com
Edited by Davide Caratti