Unchecked workqueue allocation in Linux kernel bnxt_re RDMA driver
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
The Linux kernel RDMA bnxt_re driver from 6.14 is affected. In DCB setup, the driver ignores a failed workqueue allocation, so the asynchronous DCB handler later calls queue_work() on a NULL pointer.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: check create_singlethread_workqueue() in DCB setup bnxt_re_init_dcb_wq() ignores a failed allocation. The async DCB handler later calls queue_work() on the NULL pointer.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
Linux kernel versions 6.18.54, 7.2.8 and 7.3 contain the fix. Red Hat Enterprise Linux 10 and 9 and Red Hat OpenShift Container Platform 4 and 5 are affected, and Red Hat lists no fix available for them.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Linux (Linux) Fixed in 6.18.54, 7.2.8, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
Not affected: 5 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-06 Threatist record created from CVE-2026-98356
- 2026-10-06 Alias added: GHSA-9ccg-hmmr-m95r
- 2026-10-07 Affected versions changed · Red Hat
- 2026-10-07 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-30 Affected versions changed · Red Hat
References
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Sources
- CVE-2026-98356 · CVE Program
- CVE-2026-98356 · NVD
- FIRST EPSS
- GHSA-9ccg-hmmr-m95r · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98356 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences