CVE-2023-54085 — mptcp: fix NULL pointer dereference on fastopen early fallback
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_sy…
Published: 2025-12-24 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7