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CVE-2026-46116 is a memory-safety vulnerability in the Linux kernel XFRM/IPsec state lifecycle, principally affecting __xfrm_state_delete(). Deletion decisions for the byseq and byspi hash entries depend on mutable sequence and SPI fields rather than actual list membership, allowing inconsistent unhashing. Repeated deletion of hash entries can also write through poisoned list pointers. Observed failures include slab use-after-free reads and writes and an out-of-bounds write, including during network namespace cleanup. Reproduction is confirmed on Linux 6.12.47, with the same code path reachable in upstream master and the IPsec tree.
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A Linux kernel XFRM state-list handling vulnerability addressed by defensively unhashing lists in __xfrm_state_delete. SUSE provides a fix through its kernel live-patch update. The advisory does not describe exploitation or specific impacts.
A Linux kernel XFRM state-list handling vulnerability fixed by defensively unhashing lists during state deletion. Included in SUSE Live Patch 80 for SUSE Linux Enterprise 12 SP5.
A Linux kernel XFRM state-list handling vulnerability addressed by defensively unhashing lists during state deletion. The advisory includes a fix in SUSE Linux Enterprise 12 SP5 Live Patch 78. The plugin reports exploit availability collectively but does not identify an exploit for this specific CVE.
A Linux kernel XFRM state-list handling vulnerability addressed by defensively unhashing lists during state deletion. SUSE provides a kernel live patch through advisory SUSE-SU-2026:4516-1.
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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.