CVE-2026-97567

A flaw was found in the Linux kernel's MultiPath TCP MPTCP subsystem. A race condition can occur between socket disconnection and packet retransmission timer handling, resulting in an inconsistent socket state. A local user can exploit this timing flaw during active connection teardown to cause a...

ROS-20260929-73-0196

The vulnerability of the mptcpretrans function in the net/mptcp/protocol.c module of the MPTCP protocol implementation in Linux’s kernel is related to the occurrence of mutual locking. Exploiting this vulnerability could allow a attacker to compromise the confidentiality, integrity, and...

ROS-20260929-73-0171

The vulnerability of the net/mptcp/subflow.c component in the Linux operating system is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2026-97524

A flaw was found in the Linux kernel's MultiPath TCP MPTCP subsystem. Under specific network error and subflow reset conditions during data receive operations, the kernel can enter a recursive call loop that attempts to acquire an already-held data lock. A remote attacker communicating over an...

CVE-2026-97523

A flaw was found in the Linux kernel's MultiPath TCP MPTCP subsystem. A race condition between the packet scheduler and socket state transitions can cause the maximum segment size to be reset to zero following a transmission failure. An attacker could exploit this flaw during connection handling ...

CVE-2026-97522

A flaw was found in the Linux kernel's MultiPath TCP MPTCP subsystem. When an error occurs while pushing pending data across subflows, the kernel improperly updates the transmitted byte counter with a negative error code instead of only accounting for successful transmissions. This accounting...

ROS-20260928-73-0064

The vulnerability of the mptcpschedulework function in the net/mptcp/protocol.c module of the MPTCP protocol implementation in the Linux operating system is related to synchronization errors when using shared resources „Race Conditions“. Exploiting this vulnerability can allow a malicious actor t...

ROS-20260928-73-0063

The vulnerability of the mptcppmdeladdtimer function in the net/mptcp/pm.c module of the MPTCP protocol implementation in Linux operating systems is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

CVE-2026-97567

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent race between disconnect and rtx Sashiko noted that the two event can race, leading to inconsistent status. Prevent the race using the synchronous timer stop operation...

CVE-2026-97568

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

DEBIAN-CVE-2026-97566

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: kernel: drop pending ADDADDR when removing ID0 The in-kernel MPTCP path manager can leave a stale ADDADDR announcement entry alive when removing the id 0 endpoint. This happens because the id 0 removal path does not te...

AZL-104529 CVE-2026-97568 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

CVE-2026-97566

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: kernel: drop pending ADDADDR when removing ID0 The in-kernel MPTCP path manager can leave a stale ADDADDR announcement entry alive when removing the id 0 endpoint. This happens because the id 0 removal path does not te...

AZL-104660 CVE-2026-97567 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent race between disconnect and rtx Sashiko noted that the two event can race, leading to inconsistent status. Prevent the race using the synchronous timer stop operation...

DEBIAN-CVE-2026-97568

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

DEBIAN-CVE-2026-97567

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent race between disconnect and rtx Sashiko noted that the two event can race, leading to inconsistent status. Prevent the race using the synchronous timer stop operation...

AZL-104667 CVE-2026-97566 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: kernel: drop pending ADDADDR when removing ID0 The in-kernel MPTCP path manager can leave a stale ADDADDR announcement entry alive when removing the id 0 endpoint. This happens because the id 0 removal path does not te...

CVE-2026-97522

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix bad accounting in mptcpsubflowpushpending If subflowpushpending errors out we should avoid updating the copied byte counters, to avoid mismatch push call later on...

CVE-2026-97523

In the Linux kernel, the following vulnerability has been resolved: mptcp: close race between scheduler and state change The mptcp scheduler may race with subflow sockets state change: data transmission on the selected socket may fail and a later release could try to use mssnow reset to 0 for a...

CVE-2026-97524

In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid unneeded actions on subflow reset Once in a blue moon, the mptcp receive path can recursively call mptcpdataready via state change under unlucky error conditions, and then try to hold the data lock again. Break the...