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CVE-2026-46116 is a memory-safety vulnerability in the Linux kernel XFRM/IPsec subsystem. The __xfrm_state_delete() routine could remove xfrm_state hash-list nodes based on mutable sequence-number and SPI values rather than actual hash-list membership; it also used non-initializing RCU list deletion for relevant nodes. Consequently, concurrent or repeated state deletion could attempt to unlink an already unlinked node and write through a poisoned list pointer. The condition produces slab use-after-free and out-of-bounds-write failures in the xfrm_state lifecycle.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
43 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel vulnerability in xfrm state deletion handling, fixed in the Red Hat kpatch live patch update RHSA-2026:59149.
A Linux kernel xfrm state handling vulnerability in __xfrm_state_delete, fixed via the Red Hat kpatch live patch update.
A Linux kernel vulnerability in xfrm involving defensive unhashing of xfrm_state lists in __xfrm_state_delete.
A Linux kernel xfrm vulnerability involving defensive unhasing of xfrm_state lists in __xfrm_state_delete.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.