CVE-2026-43103
Published: May 9, 2026Last modified: June 2, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.175-r0) |
| 25 LTS | linux-lts | Fixed (6.12.85-r0) | |
| Stream | linux-lts | Fixed (6.12.85-r0) |
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/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