Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4_drop_revoked_stid() nfsd4_drop_revoked_stid() has no SC_TYPE_LAYOUT case, so when a client sends FREE_STATEID for an admin-revoked layout stid, the default branch releases cl_lock and returns without unhashing or releasing the stid. The stid remains in the IDR and on the per-client list until the client is destroyed. Remove the layout stid from the per-client list and call nfs4_put_stid() to drop the creation reference. When the refcount reaches zero, nfsd4_free_layout_stateid() handles the remaining cleanup: cancelling the fence worker, removing from the per-file list, and freeing the slab object.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1e33e1414bec54a4feafa9e67e2617031be0afe2 to < 7ed62f7040ee182cf7dea5798f9e114235b31daeaffected1e33e1414bec54a4feafa9e67e2617031be0afe2 to < da6f86ff4f2dd490bea52419a49e19680efd5847affected1e33e1414bec54a4feafa9e67e2617031be0afe2 to < 8024028ef91616cf91cc669f2446a0406bc0ba19affected1e33e1414bec54a4feafa9e67e2617031be0afe2 to < 86b9898920a6d02b4149f4fef9efd77b8aa3b9caaffected
Linux Linux
Default version status: affected
6.9affected0 to < 6.9unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected