Vulnerability 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.
References
- https://git.kernel.org/stable/c/0c5063a898813a420e6bad93debd134ef8b3bfd1
- https://git.kernel.org/stable/c/2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe
- 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/bafe51bb145e6ae549ae79dcbc35648292625934
- https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599
- https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f
FAQ
What is CVE-2026-98967?
CVE-2026-98967 is a documented vulnerability. 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 us...
How severe is CVE-2026-98967?
CVSS scoring is not yet available for CVE-2026-98967. Check NVD for updates.
Is there a patch for CVE-2026-98967?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.