CVE-2026-80998 Linux kernel net: bnxt - Denial of Service

Linux kernel net: bnxt contains a denial of service caused by missing doorbell ringing on early exit in SW USO path, letting attackers cause TX queue stalls, exploit requires sending burst packets triggering early return.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.49% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for bnxt driver doorbell handling.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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