CVE-2026-98235
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: release tail references on DELACTION failure A batched RTM_DELACTION request takes a temporary reference on each action before attempting any deletion. tcf_action_delete() clears each processed slot and drops its temporary reference before attempting the deletion. If deletion fails, tca_action_gd() calls tcf_action_put_many() to release the remaining references, but its tcf_act_for_each_action() iterator stops at the first NULL slot. When a batch stops at an action bound to a filter, this leaks a reference on each subsequent action. A later delete of an unbound action can then return success without removing it from the IDR. Walk the full array in tcf_action_put_many() and skip NULL slots to release the references held on the unprocessed actions.
Affected versions
Linux kernel versions
6.8
and later are affected. Fixed in
6.12.112,
6.18.54,
7.2.8,
7.3-rc4
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98235?
CVE-2026-98235 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.112, 6.18.54, 7.2.8 and others. CVE-2026-98235 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98235?
Yes. CVE-2026-98235 has been patched. Fixed versions include 6.12.112, 6.18.54, 7.2.8 and others. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98235 actively exploited?
No. CVE-2026-98235 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.