CVE-2026-43103: net: lapbether: handle NETDEV_PRE_TYPE_CHANGE
In the Linux kernel, the following vulnerability has been resolved:
net: lapbether: handle NETDEVPRETYPECHANGE
lapbethdatatransmit() expects the underlying device type to be ARPHRDETHER.
Returning NOTIFYBAD from lapbethdeviceevent() makes sure bonding driver can not break this expectation.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-43103?
CVE-2026-43103 has been classified with a significant severity level due to potential exploitation risks in affected Linux kernel versions.
How do I fix CVE-2026-43103?
To address CVE-2026-43103, update to the patched version of the Linux kernel that corresponds to your distribution.
What software is affected by CVE-2026-43103?
CVE-2026-43103 affects multiple versions of the Linux kernel, specifically those within the defined version ranges from 2.6.24 up through 7.0-rc7.
What type of vulnerability is CVE-2026-43103?
CVE-2026-43103 is a kernel vulnerability related to network device type handling in the Linux kernel.
What impact does CVE-2026-43103 have on system security?
The impact of CVE-2026-43103 may allow an attacker to disrupt network functionality, potentially leading to denial of service conditions.