scsi: mpt3sas: Avoid out-of-bounds cpumask_of_node() call in _base_assign_reply_queues()
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: 7 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Avoid out-of-bounds cpumask_of_node() call in _base_assign_reply_queues() dev_to_node() can return NUMA_NO_NODE (-1) on systems without NUMA topology information for the PCI device, such as single-socket boards that don't expose device-to-node affinity. Passing -1 directly into cpumask_of_node() indexes node_to_cpumask_map[-1], an out-of-bounds array read caught by UBSAN: UBSAN: array-index-out-of-bounds in arch/x86/include/asm/topology.h:72:28 index -1 is out of range for type 'cpumask *[1024]' Fall back to cpu_online_mask when no NUMA node is available, rather than assuming dev_to_node() always returns a valid node index.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 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 |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-98088
- 2026-10-03 Alias added: GHSA-xp5x-f79f-mr26
- 2026-10-03 Fix available: Linux/Linux@06a994ad7bbd13714cd45df582389f751531e60c, Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-03 3 new references · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-01 Affected versions changed · Red Hat
- 2026-11-01 CVSS score added · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/f531758ef21ba9a7716148cc290e8d9a110f20d9
- https://git.kernel.org/stable/c/06a994ad7bbd13714cd45df582389f751531e60c
- https://git.kernel.org/stable/c/7bcce856c79c1799351e170aec83e018ccf3d044
- https://git.kernel.org/stable/c/0a5f7cdb0cb911584720591069065f09c59ec4fc
- https://git.kernel.org/stable/c/7b23144c3ff6e46d7d4a464b02f8944265684e39
- https://git.kernel.org/stable/c/45504e621b7e884abe59f201e093a3eac7fca7fe
- https://git.kernel.org/stable/c/e0d26fe176a8db6ccad4ab38c5bab29391c1946b
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Sources
- CVE-2026-98088 · CVE Program
- CVE-2026-98088 · NVD
- FIRST EPSS
- GHSA-xp5x-f79f-mr26 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98088 · 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