CVE-2026-31542

Source
https://cve.org/CVERecord?id=CVE-2026-31542
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31542.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-31542
Downstream
Published
2026-04-24T14:33:11.205Z
Modified
2026-05-28T03:54:52.688619733Z
Summary
x86/platform/uv: Handle deconfigured sockets
Details

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 NUMANONODE, allowing UV hub info structures to be allocated on valid nodes.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31542.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8a50c58519271dd24ba760bb282875f6ad66ee71
Fixed
c51957601d32c0d195bce0b9345dfe93ef5728cc
Fixed
9956d4892e78812246336c7ea51f5aa62018049e
Fixed
79f0faf81d3bbbe5f07bf6892450d3740a1b290d
Fixed
c1cf2218d2fa40a49921a7460981e5faab26f04e
Fixed
1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31542.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.5.0
Fixed
6.6.130
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.78
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.20
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.10

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31542.json"