CVE-2026-43103
Not scored
net: lapbether: handle NETDEV_PRE_TYPE_CHANGE
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.
Exploit probability
0.1%
Published
May 6, 2026
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-43103
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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/698642a01d53107ce9b3fc08bd801284af478a2b
- https://git.kernel.org/stable/c/a10570973619cba9dfa6d723177251b846fae587
- https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a
- https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb
- https://git.kernel.org/stable/c/ffc5ed59f6dc87c51e8775f002619310225742e8
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43103.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43103