CVE-2026-43238

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...

CVE-2026-43238

CVE-2026-43238 is a Linux kernel issue in the net/sched act_skbedit module. The bug arises in tcf_skbedit_hash() when calculating mapping_mod = queue_mapping_max - queue_mapping + 1, which could reach 65536 for full u16 queue ranges. This value cannot fit in a u16 and previously wrapped to 0, cau...

PT-2026-37578

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A divide-by-zero flaw exists in the tcf skbedit hash function. This occurs when the requested range covers all possible u16 queue IDs for example, queue mapping is 0 and queue mapping ma...