title: lan966x: Fix crash when adding interface under a lag
description: In the Linux kernel, the following vulnerability has been resolved:
lan966x: Fix crash when adding interface under a lag
There is a crash when adding one of the lan966x interfaces under a lag
interface. The issue can be reproduced like this:
ip link add name bond0 type bond miimon 100 mode balance-xor
ip link set dev eth0 master bond0
The reason is because when adding a interface under the lag it would go
through all the ports and try to figure out which other ports are under
that lag interface. And the issue is that lan966x can have ports that are
NULL pointer as they are not probed. So then iterating over these ports
it would just crash as they are NULL pointers.
The fix consists in actually checking for NULL pointers before accessing
something from the ports. Like we do in other places.
affected:
{
product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: cabc9d49333d, lessThan: b9357489c46c, status: affected, versionType: git
version: cabc9d49333d, lessThan: 48fae67d8374, status: affected, versionType: git
version: cabc9d49333d, lessThan: 2a492f01228b, status: affected, versionType: git
version: cabc9d49333d, lessThan: 15faa1f67ab4, status: affected, versionType: git
}
{
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: 6.1, status: affected
version: 0, lessThan: 6.1, status: unaffected, versionType: custom
version: 6.1.79, lessThanOrEqual: 6.1.*, status: unaffected, versionType: custom
version: 6.6.18, lessThanOrEqual: 6.6.*, status: unaffected, versionType: custom
version: 6.7.6, lessThanOrEqual: 6.7.*, status: unaffected, versionType: custom
version: 6.8, lessThanOrEqual: *, status: unaffected, versionType: original_commit_for_fix
}
