net: lapbether: handle NETDEV_PRE_TYPE_CHANGE

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Summary

CVECVE-2026-43103
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 10:16:23 UTC
Updated2026-05-11 17:33:50 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 872254dd6b1f80cb95ee9e2e22980888533fc293 363a38044b8cd5b496d241651a1fb666e7c5fe3e git Not specified
CNA Linux Linux affected 872254dd6b1f80cb95ee9e2e22980888533fc293 328bb2cff5c2ed973f595ded769e15f4b7a117be git Not specified
CNA Linux Linux affected 872254dd6b1f80cb95ee9e2e22980888533fc293 63851f60781aa89258c8f0952cd13940aab0888e git Not specified
CNA Linux Linux affected 872254dd6b1f80cb95ee9e2e22980888533fc293 b117056768ab7deb434e7d72065e48d2083a0c2a git Not specified
CNA Linux Linux affected 872254dd6b1f80cb95ee9e2e22980888533fc293 b120e4432f9f56c7103133d6a11245e617695adb git Not specified
CNA Linux Linux affected 2.6.24 Not specified
CNA Linux Linux unaffected 2.6.24 semver Not specified
CNA Linux Linux unaffected 6.6.136 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.83 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.24 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.14 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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