What is CVE-2026-31542?
In the Linux kernel, the following vulnerability has been resolved: x86/platform/uv: Handle deconfigured sockets When a socket is deconfigured, it's mapped to SOCK_EMPTY (0xffff). This causes a panic while allocating UV hub info structures. Fix this by using NUMA_NO_NODE, allowing UV hub info structures to be allocated on valid nodes.
Timeline
- 2026-04-24Published to the U.S. National Vulnerability Database (NVD)
- 2026-06-17NVD record last updated
Affected product
Linux Kernel
Remediation Steps
- Identify all Xiongmai XM530 cameras in network via port scans or CMDB
- Apply firmware updates from Xiongmai technology support portal
- Change default administrative credentials to strong, unique passwords
- Restrict camera management interface access via firewall rules
- Implement network segmentation isolating cameras from critical systems
References
- https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3
- https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290d
- https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-05.json
- https://www.xiongmai.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-31542
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 4 of April 2026 (April 27 – May 3)
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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.