CVE-2026-63867 mptcp: close TOCTOU race while computing rcv_wnd

In the Linux kernel, the following vulnerability has been resolved: mptcp: close TOCTOU race while computing rcvwnd The MPTCP output path access locklessly the MPTCP-level ackseq in multiple times, using possibly different values for the dataack in the DSS option and to compute the announced rcv...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: TCP: Fixed corruption in MPTCP’s DSS due to large PMTU transmissions. Syzkaller was able to trigger DSS corruption: - TCP: requestsocksubflowv4: Possible SYN flooding on port :::20002. Sending cookies. ------------ Cut here...

mptcp: handle consistently DSS corruption

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tcp: fix mptcp DSS corruption due to large pmtu xmit

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AZL-51927 CVE-2024-50083 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: tcp: fix mptcp DSS corruption due to large pmtu xmit Syzkaller was able to trigger a DSS corruption: TCP: requestsocksubflowv4: Possible SYN flooding on port :::20002. Sending cookies. ------------ cut here ------------ WARNING:...