{"id":"CVE-2026-98967","title":"cxgb4/ch_ktls: disable softirqs around tid_list erases","summary":"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 sha…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 8739f06e3f82cd715f7dd10ab24029ed881efc90","Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < bcf97573d44e277b1744d7f1226f665aa0ccc599","Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 7110c7f70c59eb7924e79853bcc00e2a026662e6","Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < bea736a2b8c6da5b1078badf1206541b5404250f","Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 4c9dc0faca98084922caeb689579d338cf3e1c29","Linux b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78","Linux 70c4ead897211b184f36cbeda213f2a3e8153218","Linux >= 5.10.42 < 5.11","Linux >= 5.12.9 < 5.13","Linux 5.13"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T12:19:37.625Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98967","references":[{"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"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T13:24:55.552Z","slug":"CVE-2026-98967","body":"## Overview\n\nIn 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's 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.\n\n## Affected\n\n- `Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 8739f06e3f82cd715f7dd10ab24029ed881efc90`\n- `Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < bcf97573d44e277b1744d7f1226f665aa0ccc599`\n- `Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 7110c7f70c59eb7924e79853bcc00e2a026662e6`\n- `Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < bea736a2b8c6da5b1078badf1206541b5404250f`\n- `Linux >= 65e302a9bd57b62872040d57eea1201562a7cbb2 < 4c9dc0faca98084922caeb689579d338cf3e1c29`\n- `Linux b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78`\n- `Linux 70c4ead897211b184f36cbeda213f2a3e8153218`\n- `Linux >= 5.10.42 < 5.11`\n- `Linux >= 5.12.9 < 5.13`\n- `Linux 5.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}