CVE-2026-43103
net: lapbether: handle NETDEV_PRE_TYPE_CHANGE
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.
INFO
Published Date :
May 6, 2026, 10:16 a.m.
Last Modified :
May 6, 2026, 1:07 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel.
- Apply the provided patch for lapbeth_data_transmit.
- Ensure NETDEV_PRE_TYPE_CHANGE is handled correctly.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-43103.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-43103 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-43103
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-43103 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-43103 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 06, 2026
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be Added Reference https://git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e Added Reference https://git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e Added Reference https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a Added Reference https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb