On Thu, May 23, 2019 at 06:20:05PM +0200, Oleg Nesterov wrote:
On 05/23, Christian Brauner wrote:+int __close_range(struct files_struct *files, unsigned fd, unsigned max_fd) +{ + unsigned int cur_max; + + if (fd > max_fd) + return -EINVAL; + + rcu_read_lock(); + cur_max = files_fdtable(files)->max_fds; + rcu_read_unlock(); + + /* cap to last valid index into fdtable */ + max_fd = max(max_fd, (cur_max - 1));^^^ Hmm. min() ?
Yes, thanks! Massive brainf*rt on my end, sorry. Christian
