diff options
Diffstat (limited to 'fs/compat.c')
| -rw-r--r-- | fs/compat.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/compat.c b/fs/compat.c index 8c665705c6a..ac3fb9ed8ee 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1619,6 +1619,7 @@ compat_sys_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp char *bits; long timeout; int size, max_fdset, ret = -EINVAL; + struct fdtable *fdt; timeout = MAX_SCHEDULE_TIMEOUT; if (tvp) { @@ -1644,7 +1645,10 @@ compat_sys_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp goto out_nofds; /* max_fdset can increase, so grab it once to avoid race */ - max_fdset = current->files->max_fdset; + rcu_read_lock(); + fdt = files_fdtable(current->files); + max_fdset = fdt->max_fdset; + rcu_read_unlock(); if (n > max_fdset) n = max_fdset; |