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CVE-2023-28466 is a use-after-free vulnerability in the Linux kernel TLS subsystem. In Linux kernel versions through 6.2.6, do_tls_getsockopt in net/tls/tls_main.c performs TLS socket-option handling without acquiring the socket lock via lock_sock. Concurrent socket state changes can therefore race with this operation, resulting in use-after-free access or a NULL-pointer dereference.
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No public exploit code observed for this vulnerability.
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A race condition in the Linux kernel TLS do_tls_getsockopt path that may cause a use-after-free or NULL-pointer dereference.
A race condition in the Linux kernel TLS do_tls_getsockopt path that can cause a use-after-free or NULL-pointer dereference.
A race condition in the Linux kernel TLS do_tls_getsockopt path that can cause a use-after-free or NULL-pointer dereference.
A race condition in the Linux kernel TLS do_tls_getsockopt function that may cause a use-after-free or NULL-pointer dereference.
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.