Re: [PATCH v18 07/15] fs/namespace: untag user pointers in copy_mount_options

2019-07-22 Thread Kees Cook
+Eric Biederman too, who might be able to Ack this... On Mon, Jul 15, 2019 at 06:00:04PM +0200, Andrey Konovalov wrote: > On Mon, Jun 24, 2019 at 7:50 PM Catalin Marinas > wrote: > > > > On Mon, Jun 24, 2019 at 04:32:52PM +0200, Andrey Konovalov wrote: > > > This patch is a part of a series

Re: [PATCH v18 07/15] fs/namespace: untag user pointers in copy_mount_options

2019-07-15 Thread Andrey Konovalov
On Mon, Jun 24, 2019 at 7:50 PM Catalin Marinas wrote: > > On Mon, Jun 24, 2019 at 04:32:52PM +0200, Andrey Konovalov wrote: > > This patch is a part of a series that extends kernel ABI to allow to pass > > tagged user pointers (with the top byte set to something else other than > > 0x00) as

Re: [PATCH v18 07/15] fs/namespace: untag user pointers in copy_mount_options

2019-06-24 Thread Catalin Marinas
On Mon, Jun 24, 2019 at 04:32:52PM +0200, Andrey Konovalov wrote: > This patch is a part of a series that extends kernel ABI to allow to pass > tagged user pointers (with the top byte set to something else other than > 0x00) as syscall arguments. > > In copy_mount_options a user address is being