CVE-2026-98438

In the Linux kernel, the following vulnerability has been resolved: mptcp: options: fix uninit-value in mptcpwritedatafin When sending a DATAFIN without data, and because the DATAFIN occupies 1 octet of the connection-level sequence space 1, it is then required to add a DSS mapping with specific...

CVE-2026-98438

The Linux kernel contains a vulnerability in the mptcp options where an uninitialized value was used in mptcp_write_data_fin. Specifically, when sending a DATA_FIN without data, the system fails to properly initialize the csum field and other fields in the ext_copy structure, as these are no long...