CVE-2026-98967

Description

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.

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Produits concernés

• Linux

Références

• https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29
• https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6
• https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90
• https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599
• https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories