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CVE-2023-54085

Our Analysis: Embedded

Our model has classified this vulnerability as relevant to Embedded Systems, helping your team prioritize efforts effectively.

Published Date December 24, 2025
Last Modified December 29, 2025
CVSS Vector Not Available

Description

In the Linux kernel, the following vulnerability has been resolved:

mptcp: fix NULL pointer dereference on fastopen early fallback

In case of early fallback to TCP, subflow_syn_recv_sock() deletes
the subflow context before returning the newly allocated sock to
the caller.

The fastopen path does not cope with the above unconditionally
dereferencing the subflow context.