GHSA-HVVF-G7GG-PMX4
Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31In the Linux kernel, the following vulnerability has been resolved:
cxgb4/ch_ktls: disable softirqs around tid_list erases
chcr_ktls_cpl_act_open_rpl() inserts into tid_list from the receive path using xa_insert_bh(). The array is shared by the adapter's connections and initialized with XA_FLAGS_LOCK_BH. However, chcr_ktls_dev_del() and the chcr_ktls_dev_add() error path use xa_erase(), which takes the XArray lock without disabling softirqs.
When cleanup runs with softirqs enabled, a receive softirq for another connection on the same CPU can interrupt the erase and spin on the lock held by the interrupted task. Use xa_erase_bh() at both sites to match the insertion path.
{
"affected": [],
"aliases": [
"CVE-2026-98967"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-23T13:17:18Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxgb4/ch_ktls: disable softirqs around tid_list erases\n\nchcr_ktls_cpl_act_open_rpl() inserts into tid_list from the receive path\nusing xa_insert_bh(). The array is shared by the adapter\u0027s connections\nand initialized with XA_FLAGS_LOCK_BH. However, chcr_ktls_dev_del() and\nthe chcr_ktls_dev_add() error path use xa_erase(), which takes the XArray\nlock without disabling softirqs.\n\nWhen cleanup runs with softirqs enabled, a receive softirq for another\nconnection on the same CPU can interrupt the erase and spin on the lock\nheld by the interrupted task. Use xa_erase_bh() at both sites to match\nthe insertion path.",
"id": "GHSA-hvvf-g7gg-pmx4",
"modified": "2026-10-23T15:31:33Z",
"published": "2026-10-23T15:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98967"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f"
}
],
"schema_version": "1.4.0",
"severity": []
}
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