Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 65e302a9bd57b62872040d57eea1201562a7cbb2 before 8739f06e3f82cd715f7dd10ab24029ed881efc90; affected 65e302a9bd57b62872040d57eea1201562a7cbb2 before bcf97573d44e277b1744d7f1226f665aa0ccc599; affected 65e302a9bd57b62872040d57eea1201562a7cbb2 before 7110c7f70c59eb7924e79853bcc00e2a026662e6; affected 65e302a9bd57b62872040d57eea1201562a7cbb2 before bea736a2b8c6da5b1078badf1206541b5404250f; affected 65e302a9bd57b62872040d57eea1201562a7cbb2 before 4c9dc0faca98084922caeb689579d338cf3e1c29; affected b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78; affected 70c4ead897211b184f36cbeda213f2a3e8153218; affected 5.10.42 before 5.11; affected 5.12.9 before 5.13 |
| Linux / Linux | affected 5.13; unaffected 0 before 5.13; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90
- https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599
- https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6
- https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f
- https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29