drivers: net: slip: fix NPD bug in sl_tx_timeout()
JIRA: https://issues.redhat.com/browse/RHEL-6654
CVE: CVE-2022-41858
Tested: I attached a reproducer script and its output (good & bad) to the Jira.
Signed-off-by: Michal Schmidt mschmidt@redhat.com
Edited by Michal Schmidt