CVE-2026-43103

net: lapbether: handle NETDEV_PRE_TYPE_CHANGE

MEDIUM

5.5

CVSS Score

Published: May 6, 2026 at 07:40 AM UTC

Updated: June 17, 2026 at 10:48 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.24 ≤ v < 5.10.2582.6.24 ≤ v < 5.15.2092.6.24 ≤ v < 6.1.1752.6.24 ≤ v < 6.12.832.6.24 ≤ v < 6.18.242.6.24 ≤ v < 6.19.142.6.24 ≤ v < 6.6.1362.6.24 ≤ v < 7.06.13 ≤ v < 6.18.246.19 ≤ v < 6.19.146.7 ≤ v < 6.12.837.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 7.0 rc7872254dd6b1f80cb95ee9e2e22980888533fc293

Vendor states this is fixed in 328bb2cff5c2ed973f595ded769e15f4b7a117be (fixed)

Vendor states this is fixed in 363a38044b8cd5b496d241651a1fb666e7c5fe3e (fixed)

Vendor states this is fixed in 63851f60781aa89258c8f0952cd13940aab0888e (fixed)

Vendor states this is fixed in 698642a01d53107ce9b3fc08bd801284af478a2b (fixed)

Vendor states this is fixed in a10570973619cba9dfa6d723177251b846fae587 (fixed)

Vendor states this is fixed in b117056768ab7deb434e7d72065e48d2083a0c2a (fixed)

Vendor states this is fixed in b120e4432f9f56c7103133d6a11245e617695adb (fixed)

Vendor states this is fixed in ffc5ed59f6dc87c51e8775f002619310225742e8 (fixed)

Vendor states this is fixed in 2.6.24 (unaffected)

Vendor states this is fixed in 5.10.258 (unaffected)

Vendor states this is fixed in 5.15.209 (unaffected)

Vendor states this is fixed in 6.1.175 (unaffected)