On Sat, Mar 07, 2020 at 07:11:36AM -0600, Corey Minyard wrote:
On Sat, Mar 07, 2020 at 12:00:07PM +0100, Christian Brauner wrote:
On Fri, Mar 06, 2020 at 11:23:14AM -0600, minyard@acm.org wrote:
From: Corey Minyard cminyard@mvista.com
Recent changes to alloc_pid() allow the pid number to be specified on the command line. If set_tid_size is set, then the code scanning the levels will hard-set retval to -EPERM, overriding it's previous -ENOMEM value.
After the code scanning the levels, there are error returns that do not set retval, assuming it is still set to -ENOMEM.
So set retval back to -ENOMEM after scanning the levels.
Fixes: 49cb2fc42ce4 "fork: extend clone3() to support setting a PID" Signed-off-by: Corey Minyard cminyard@mvista.com Cc: stable@vger.kernel.org # 5.5 Cc: Adrian Reber areber@redhat.com Cc: Christian Brauner christian.brauner@ubuntu.com Cc: Oleg Nesterov oleg@redhat.com Cc: Dmitry Safonov 0x7f454c46@gmail.com Cc: Andrei Vagin avagin@gmail.com
Thanks! I've pulled the patch now and applied.
Applied as: https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git/commit/?h=...
Should show up in -next around Monday and I'll target it for rc6. Should then be backported to v5.5 rather soon!
Thanks!