CVE-2026-98285: Linux kernel · net: bridge: vlan: fix bugs caused by switchdev deletion errors
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to ed3ea86db736a30bebf49b947c42730e8451bcd2 or 2842ce397dd09882530b42f7fdb0c855767eb24e when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in ed3ea86db736a30bebf49b947c42730e8451bcd2, 2842ce397dd09882530b42f7fdb0c855767eb24e
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to ed3ea86db736a30bebf49b947c42730e8451bcd2 or 2842ce397dd09882530b42f7fdb0c855767eb24e.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the specified commits. Users running Linux kernel version 4.3 should update to a fixed version containing these commits to resolve the vulnerability. No additional mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's network bridge VLAN handling was fixed to address bugs caused by switchdev deletion errors. The issue involved switchdev preventing VLAN deletion and causing errors in the __vlan_del function, leading to inconsistent state, memory leaks during flushing, and potential NULL pointer dereferences. The fix changes the behavior to log errors and continue with software VLAN deletion, aligning with 8021q behavior.