CVE-2026-43103

Description

In the Linux kernel, the following vulnerability has been resolved: net: lapbether: handle NETDEV_PRE_TYPE_CHANGE lapbeth_data_transmit() expects the underlying device type to be ARPHRD_ETHER. Returning NOTIFY_BAD from lapbeth_device_event() makes sure bonding driver can not break this expectation.

References

• https://git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be
• https://git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e
• https://git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e
• https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a
• https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb