diff options
Diffstat (limited to 'fs/lockd/svc4proc.c')
| -rw-r--r-- | fs/lockd/svc4proc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index 4f247ab8be61..bf274f23969b 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -32,6 +32,10 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp, if (!nlmsvc_ops) return nlm_lck_denied_nolocks; + if (lock->lock_start > OFFSET_MAX || + (lock->lock_len && ((lock->lock_len - 1) > (OFFSET_MAX - lock->lock_start)))) + return nlm4_fbig; + /* Obtain host handle */ if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len)) || (argp->monitor && nsm_monitor(host) < 0)) @@ -50,6 +54,10 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp, /* Set up the missing parts of the file_lock structure */ lock->fl.fl_file = file->f_file[mode]; lock->fl.fl_pid = current->tgid; + lock->fl.fl_start = (loff_t)lock->lock_start; + lock->fl.fl_end = lock->lock_len ? + (loff_t)(lock->lock_start + lock->lock_len - 1) : + OFFSET_MAX; lock->fl.fl_lmops = &nlmsvc_lock_operations; nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid); if (!lock->fl.fl_owner) { |