CVE-2026-72372: afs: Fix lack of locking around modifications of net->cells_dyn_ino
In the Linux kernel, the following vulnerability has been resolved:
afs: Fix lack of locking around modifications of net->cellsdynino
Fix the lack of locking around modifications of net->cellsdynino by taking net->cellslock exclusively. This also requires to cell to be removed from net->cellsdynino in afsdestroycellwork() rather than in afscelldestroy() as the latter runs in RCU cleanup context and sleeping locks cannot be taken there.
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernel (afs)to a version that resolves this vulnerability.Patch afs: Fix lack of locking around modifications of net->cells_dyn_ino