Description
In the Linux kernel, the following vulnerability has been resolved: nfsd: allow SC_STATUS_FREEABLE when searching via nfs4_lookup_stateid() The pynfs DELEG8 test fails when run against nfsd. It acquires a delegation and then lets the lease time out. It then tries to use the deleg stateid and expects to see NFS4ERR_DELEG_REVOKED, but it gets bad NFS4ERR_BAD_STATEID instead. When a delegation is revoked, it's initially marked with SC_STATUS_REVOKED, or SC_STATUS_ADMIN_REVOKED and later, it's marked with the SC_STATUS_FREEABLE flag, which denotes that it is waiting for s FREE_STATEID call. nfs4_lookup_stateid() accepts a statusmask that includes the status flags that a found stateid is allowed to have. Currently, that mask never includes SC_STATUS_FREEABLE, which means that revoked delegations are (almost) never found. Add SC_STATUS_FREEABLE to the always-allowed status flags, and remove it from nfsd4_delegreturn() since it's now always implied.
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
8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a to < 52e209203c35a4fbff8af23cd3613efe5df40102affected8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a to < dc6f3295905d7185e71091870119a8c11c3808ccaffected8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a to < 5bcb44e650bc4ec7eac23df90c5e011a77fa2bebaffected8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a to < d1bc15b147d35b4cb7ca99a9a7d79d41ca342c13affected967faa26f313a62e7bebc55d5b8122eaee43b929affected6.11.6 to < 6.12affected
Linux Linux
Default version status: affected
6.12affected0 to < 6.12unaffected6.12.23 to ≤ 6.12.*unaffected6.13.11 to ≤ 6.13.*unaffected6.14.2 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected