RDMA/irdma: Replace waitqueue and flag with completion
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Replace waitqueue and flag with completion The driver previously used a waitqueue along with an explicit request_done flag, but without proper barriers around request_done. An earlier patch by Gui-Dong Han <[email protected]> attempted to fix this by adding the missing memory barriers. Rather than adding the barriers, this patch replaces the waitqueue+flag with a completion, which is designed for this exact purpose.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.53, 7.1.5, 7.2
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: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72494
- 2026-10-03 Alias added: GHSA-pw35-43jc-62v7
- 2026-10-16 EPSS moved to the 50th–90th percentile
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-21 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@7d89bff21c12e543d12ad70cb0103cf815891b24 +1 · CNA
- 2026-10-21 2 new references · CNA
- 2026-10-30 Fix available: Linux/Linux@4dcd5afcc3516b07f0a506c338a49bccfd24589b, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
- 2026-11-04 EPSS moved to the below the 50th percentile
References
Other 6
- https://git.kernel.org/stable/c/4dcd5afcc3516b07f0a506c338a49bccfd24589b
- https://git.kernel.org/stable/c/7d89bff21c12e543d12ad70cb0103cf815891b24
- https://git.kernel.org/stable/c/8de303efe2ff4fcbf240dfc6eb3469e1e8f18a3f
- https://git.kernel.org/stable/c/706591cccdd3ac2c0ddc8c2ed6c89a6be9865826
- https://git.kernel.org/stable/c/bde37aed0724c0139dea177f3aae8d989b6babb1
- https://git.kernel.org/stable/c/d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd
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Sources
- CVE-2026-72494 · CVE Program
- CVE-2026-72494 · NVD
- FIRST EPSS
- GHSA-pw35-43jc-62v7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72494 · 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