Preempt-safe RCU file usage (ac5b8b6f) · Commits · e / devices / android_kernel_xiaomi_markw

fs/compat.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1645,8 +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 */
		rcu_read_lock();
		fdt = files_fdtable(current->files);
		max_fdset = fdt->max_fdset;
		rcu_read_unlock();
		if (n > max_fdset)
		n = max_fdset;