GHSA-5HCH-2JPC-2MCV
Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31In the Linux kernel, the following vulnerability has been resolved:
ibmveth: h_free logical LAN on open-fail after register
ibmveth_open() registers the logical LAN, then allocates the RX buffer pools. A pool failure jumps to out_free_buffer_pools without h_free_logical_lan(), so PHYP still owns the buffer-list page when it is unmapped. request_irq() failure already issued the hypercall before taking the same label.
Move that h_free to the shared post-register unwind so both paths deregister before the buffer list is unmapped.
{
"affected": [],
"aliases": [
"CVE-2026-99045"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-23T13:17:27Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: h_free logical LAN on open-fail after register\n\nibmveth_open() registers the logical LAN, then allocates the RX\nbuffer pools. A pool failure jumps to out_free_buffer_pools without\nh_free_logical_lan(), so PHYP still owns the buffer-list page when\nit is unmapped. request_irq() failure already issued the hypercall\nbefore taking the same label.\n\nMove that h_free to the shared post-register unwind so both paths\nderegister before the buffer list is unmapped.",
"id": "GHSA-5hch-2jpc-2mcv",
"modified": "2026-10-23T15:31:36Z",
"published": "2026-10-23T15:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99045"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372"
}
],
"schema_version": "1.4.0",
"severity": []
}
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