UBUNTU-CVE-2025-39986

In the Linux kernel, the following vulnerability has been resolved: can: sun4ican: populate ndochangemtu to prevent buffer overflow Sending an PFPACKET allows to bypass the CAN framework logic and to directly reach the xmit function of a CAN driver. The only check which is performed by the PFPACK...

CVE-2025-39987 can: hi311x: populate ndo_change_mtu() to prevent buffer overflow

In the Linux kernel, the following vulnerability has been resolved: can: hi311x: populate ndochangemtu to prevent buffer overflow Sending an PFPACKET allows to bypass the CAN framework logic and to directly reach the xmit function of a CAN driver. The only check which is performed by the PFPACKET...

CVE-2025-39985

In CVE-2025-39985, the Linux kernel’s mcba_usb CAN driver could bypass MTU enforcement via PF_PACKET, allowing a malformed CAN XL frame to reach xmit() and trigger a buffer overflow. The root cause is that mcba_usb does not populate net_device_ops->ndo_change_mtu(), so a user can set an invali...