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CVE-2025-38464 is a use-after-free vulnerability in the Linux kernel Transparent Inter-Process Communication (TIPC) topology server connection-close path. During network-namespace teardown, tipc_topsrv_stop() releases the connection IDR lock before operating on a tipc_conn. Concurrent tipc_conn_recv_work() activity can close that same connection and release its final reference, freeing the object before tipc_topsrv_stop() calls tipc_conn_close(). The resulting access to freed memory was observed by KASAN as an invalid eight-byte read in tipc_conn_close().
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A Linux kernel TIPC use-after-free vulnerability in tipc_conn_close(), addressed by the Rocky Linux 8 security update. The advisory lists a CVSS v3 vector of AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
A locally exploitable vulnerability requiring low privileges and low attack complexity, with high potential impact to confidentiality, integrity, and availability. The referenced Unity Linux advisory/plugin indicates a patch is available.
A use-after-free vulnerability in the Linux kernel TIPC subsystem's tipc_conn_close() function.
A use-after-free vulnerability in the Linux kernel Transparent Inter-Process Communication (TIPC) subsystem's tipc_conn_close() function.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.