GHSA-558R-QP8J-RR6R
Vulnerability from github – Published: 2026-10-14 15:32 – Updated: 2026-10-14 15:32In the Linux kernel, the following vulnerability has been resolved:
wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path
mwifiex_pcie_request_irq() registers each MSI-X vector with a per-index dev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop "for (j = 0; j < i; j++)" frees msix_entries[j].vector but passes the failed index's &card->msix_ctx[i] as the dev_id. free_irq() matches on (irq, dev_id), so it fails to find the action registered with &card->msix_ctx[j]: the already-requested IRQ j is not freed (leaked) and free_irq() warns about freeing a non-existent IRQ. Use &card->msix_ctx[j].
{
"affected": [],
"aliases": [
"CVE-2026-98426"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-14T14:17:54Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path\n\nmwifiex_pcie_request_irq() registers each MSI-X vector with a per-index\ndev_id (\u0026card-\u003emsix_ctx[i]). On a request_irq() failure the cleanup loop\n\"for (j = 0; j \u003c i; j++)\" frees msix_entries[j].vector but passes the\nfailed index\u0027s \u0026card-\u003emsix_ctx[i] as the dev_id. free_irq() matches on\n(irq, dev_id), so it fails to find the action registered with\n\u0026card-\u003emsix_ctx[j]: the already-requested IRQ j is not freed (leaked) and\nfree_irq() warns about freeing a non-existent IRQ. Use \u0026card-\u003emsix_ctx[j].",
"id": "GHSA-558r-qp8j-rr6r",
"modified": "2026-10-14T15:32:21Z",
"published": "2026-10-14T15:32:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98426"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/03d5e4776e8b71c2468c5c3c48b39202c87a8796"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0969c9688389f2e0f65b1a924b0dd6625a3bb776"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1a60cb2292194cc9eafae7ca8a8a72d37ae78d97"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2761b21cb896b1da8dd46cee5084c9032b2d7098"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fd4cc87e6cc0839aac89c24ebe39ce262fe088f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a3d722190cdef18da4878b5efc27c3c386dda248"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fcac5813f324cd07dfd36b4adf624fc70f7587d6"
}
],
"schema_version": "1.4.0",
"severity": []
}
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