CVE-2026-31542

x86/platform/uv: Handle deconfigured sockets

Published: 4/24/2026 Last updated: 5/11/2026 Reserved: 3/9/2026

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product	Vendor	Version
Linux	Linux	SD 820
Linux	Linux	SD 835
Linux	Linux	9.0.1.1049
Linux	Linux	13.3.8

CVE-2026-31542

x86/platform/uv: Handle deconfigured sockets

Opam packages affected (29)

Products affected (4)

References (10)