On Mon, Dec 20, 2021 at 05:26:27PM +0800, Baokun Li wrote:
When we pass a negative value to the proc_doulongvec_minmax() function,Acked-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
the function returns 0, but the corresponding interface value does not
change.
we can easily reproduce this problem with the following commands:
`cd /proc/sys/fs/epoll`
`echo -1 > max_user_watches; echo $?; cat max_user_watches`
This function requires a non-negative number to be passed in, so when
a negative number is passed in, -EINVAL is returned.
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
Luis
.