CVE-2026-98285

Summary

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: vlan: fix bugs caused by switchdev deletion errors

Allowing switchdev to prevent vlan deletion and error out in __vlan_del could cause multiple different issues - inconsistent state, memory leaks when flushing, NULL pointer dereference on bridge error when flushing. It doesn't make sense to allow it to stop __vlan_del, so log the error and continue with software vlan deletion. This is also consistent with 8021q behaviour.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbf361ad38165939049a2649b1a0078f3268d4bd1 < ed3ea86db736a30bebf49b947c42730e8451bcd2affected
LinuxLinuxbf361ad38165939049a2649b1a0078f3268d4bd1 < 2842ce397dd09882530b42f7fdb0c855767eb24eaffected
LinuxLinux4.3affected
LinuxLinux0 < 4.3unaffected
LinuxLinux7.2.8 <= 7.2.*unaffected
LinuxLinux7.3-rc4 <= *unaffected

Weaknesses

References