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CVE-2026-23216 is a use-after-free vulnerability in the Linux kernel SCSI target iSCSI subsystem, specifically in iscsit_dec_conn_usage_count(). The flaw arises because the function invokes complete() while still holding conn->conn_usage_lock. Once complete() wakes a waiting thread such as iscsit_close_connection(), that waiter can proceed to free the associated iscsit_conn structure before the original thread reaches spin_unlock_bh(). The original thread then attempts to operate on state embedded in the already-freed connection object, producing a slab use-after-free condition as observed by KASAN. The upstream fix changes the ordering so the spinlock is released before complete() is called.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
18 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.