CVE-2026-98967 (GCVE-0-2026-98967)
Vulnerability from cvelistv5
Published
2026-10-23 12:19
Modified
2026-10-30 12:40
Severity ?
Summary
In 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.
References
Impacted products
Vendor Product Version
Linux Linux Version: b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 65e302a9bd57b62872040d57eea1201562a7cbb2
Version: 70c4ead897211b184f36cbeda213f2a3e8153218
Version: 5.10.42   ≤
Version: 5.12.9   ≤
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            },
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:40:33.620Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe"
        },
        {
          "url": "https://git.kernel.org/stable/c/bafe51bb145e6ae549ae79dcbc35648292625934"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c5063a898813a420e6bad93debd134ef8b3bfd1"
        },
        {
          "url": "https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90"
        },
        {
          "url": "https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599"
        },
        {
          "url": "https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29"
        }
      ],
      "title": "cxgb4/ch_ktls: disable softirqs around tid_list erases",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98967",
    "datePublished": "2026-10-23T12:19:37.625Z",
    "dateReserved": "2026-09-25T10:25:14.383Z",
    "dateUpdated": "2026-10-30T12:40:33.620Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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