All vulnerabilities
CVE-2026-98285

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

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.16%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2842ce397dd09882530b42f7fdb0c855767eb24eFixed versionCVE List
Published6 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 2842ce397dd09882530b42f7fdb0c855767eb24eLinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 6

  • Linuxaffected: bf361ad38165939049a2649b1a0078f3268d4bd1 before ed3ea86db736a30bebf49b947c42730e8451bcd2CVE List
  • Linuxaffected: bf361ad38165939049a2649b1a0078f3268d4bd1 before 2842ce397dd09882530b42f7fdb0c855767eb24eCVE List
  • Linuxaffected: 4.3CVE List
  • Linuxunaffected: all versions before 4.3CVE List
  • Linuxunaffected: 7.2.8 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 2