GHSA-XM5J-HPP7-CWW3
Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31In the Linux kernel, the following vulnerability has been resolved:
gve: fix napi_disable deadlock when attempting to disable XSK pools
When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds.
Update the NAPI calls to use the locked versions.
This issue was found in production.
{
"affected": [],
"aliases": [
"CVE-2026-99048"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-23T13:17:28Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: fix napi_disable deadlock when attempting to disable XSK pools\n\nWhen disabling XSK pools, GVE calls the unlocked versions of\nnapi_disable and napi_enable. However, the netdev lock has already been\nacquired before ndo_bpf is called because GVE supports queue management\nops. Calling the unlocked versions of napi_disable/enable results in a\ndeadlock when attempting to disable XSK pools, as the thread attempts to\nre-acquire a lock it already holds.\n\nUpdate the NAPI calls to use the locked versions.\n\nThis issue was found in production.",
"id": "GHSA-xm5j-hpp7-cww3",
"modified": "2026-10-23T15:31:36Z",
"published": "2026-10-23T15:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99048"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b"
}
],
"schema_version": "1.4.0",
"severity": []
}
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