CVE-2026-98356: Linux kernel · RDMA/bnxt_re: check create_singlethread_workqueue() in DCB setup
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in a0fb2007d00b440fd1adddd9b042f01744ed0efc : update Linux kernel 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 a0fb2007d00b440fd1adddd9b042f01744ed0efc, 727bbda37d9758960c346546004eea4ad49242e1, 6c368f7baaea63c1c7c28c6df271511f2a1562c9
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 a0fb2007d00b440fd1adddd9b042f01744ed0efc, 727bbda37d9758960c346546004eea4ad49242e1 or 6c368f7baaea63c1c7c28c6df271511f2a1562c9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the specified Linux kernel commits. Users and administrators should update their Linux kernel to a version that includes these fixes to remediate the vulnerability.
Description
A vulnerability in the Linux kernel's RDMA bnxt_re driver involves improper handling of a failed allocation in the DCB setup function bnxt_re_init_dcb_wq(). The function ignores a failure to create a single-threaded workqueue, leading to a NULL pointer being passed to queue_work() later in the asynchronous DCB handler. This issue has been resolved in specific commits.