RDMA/mlx4: Prevent shift wrapping in set_user_sq_size()
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 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/mlx4: Prevent shift wrapping in set_user_sq_size() The ucmd->log_sq_bb_count variable is controlled by the user so this shift can wrap. Fix it by using check_shl_overflow() in the same way that it was done in commit 515f60004ed9 ("RDMA/hns: Prevent undefined behavior in hns_roce_set_user_sq_size()").
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00155 4th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.283, 5.4.243, 5.10.180 +5Red Hat: 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | 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: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2023-54168
- 2026-10-03 Alias added: GHSA-54vr-v43g-gq47
- 2026-10-16 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/3d5ae269c4bd392ec1edbfb3bd031b8f42d7feff
- https://git.kernel.org/stable/c/8feca625900777e02a449e53fe4121339934c38a
- https://git.kernel.org/stable/c/9ad3221c86cc9c6305594b742d4a72dfbd4ea579
- https://git.kernel.org/stable/c/9911be2155720221a4f1f722b22bd0e2388d8bcf
- https://git.kernel.org/stable/c/3ce0df3493277b9df275cb8455d9c677ae701230
- https://git.kernel.org/stable/c/196a6df08b08699ace4ce70e1efcdd9081b6565f
- https://git.kernel.org/stable/c/a183905869e692b6b7805b7472235585eff8e429
- https://git.kernel.org/stable/c/d50b3c73f1ac20dabc53dc6e9d64ce9c79a331eb
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Sources
- CVE-2023-54168 · CVE Program
- CVE-2023-54168 · NVD
- FIRST EPSS
- GHSA-54vr-v43g-gq47 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-54168 · 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