Published Oct 18, 2026Sources checked Oct 21, 2026
N/ACVSS not listedScore unavailable
What this means
Review the available evidence
CVE-2026-98867. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-98867?
In the Linux kernel, the following vulnerability has been resolved:
dm-pcache: bound the logical key offset from persistent memory
cache_key_decode() takes a key's logical off from the cache device and later indexes req_key_tree->subtrees[] by it in get_subtree(). An off past the device forms a subtree pointer outside the array, which rb_insert() writes through during replay.
Reject a key of zero length, or whose off+len (computed in 64 bits) exceeds the device size, before it is used.