CVE-2026-43238 net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash()

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbedit: fix divide-by-zero in tcfskbedithash Commit 38a6f0865796 "net: sched: support hash selecting tx queue" added SKBEDITFTXQSKBHASH support. The inclusive range size is computed as: mappingmod = queuemappingmax...