On Fri, Jul 19, 2019 at 05:12:18AM +0300, Dmitry V. Levin wrote:
> On Thu, Jul 18, 2019 at 11:29:50PM +0200, Arnd Bergmann wrote:
> [...]
> > 5. you get the same problem with seccomp and strace that
> >clone3() has -- these and others only track the register
> >arguments by default.
>
>
On 2019-07-19, Dmitry V. Levin wrote:
> On Sun, Jul 07, 2019 at 12:57:35AM +1000, Aleksa Sarai wrote:
> [...]
> > +/**
> > + * Arguments for how openat2(2) should open the target path. If @extra is
> > zero,
> > + * then openat2(2) is identical to openat(2).
> > + *
> > + * @flags: O_* flags
On Thu, Jul 18, 2019 at 11:29:50PM +0200, Arnd Bergmann wrote:
[...]
> 5. you get the same problem with seccomp and strace that
>clone3() has -- these and others only track the register
>arguments by default.
Just for the record, this is definitely not the case for strace:
it decodes
On Sun, Jul 07, 2019 at 12:57:35AM +1000, Aleksa Sarai wrote:
[...]
> +/**
> + * Arguments for how openat2(2) should open the target path. If @extra is
> zero,
> + * then openat2(2) is identical to openat(2).
> + *
> + * @flags: O_* flags (unknown flags ignored).
What was the rationale for
On Thu, Jul 18, 2019 at 6:12 PM Aleksa Sarai wrote:
> On 2019-07-18, Arnd Bergmann wrote:
> > On Sat, Jul 6, 2019 at 5:00 PM Aleksa Sarai wrote:
> >
> > In fact, that seems similar enough to the existing openat() that I think
> > you could also just add the fifth argument to the existing call
On 2019-07-18, Arnd Bergmann wrote:
> On Sat, Jul 6, 2019 at 5:00 PM Aleksa Sarai wrote:
>
> > diff --git a/arch/alpha/kernel/syscalls/syscall.tbl
> > b/arch/alpha/kernel/syscalls/syscall.tbl
> > index 9e7704e44f6d..1703d048c141 100644
> > --- a/arch/alpha/kernel/syscalls/syscall.tbl
> > +++
On 2019-07-18, Rasmus Villemoes wrote:
> On 06/07/2019 16.57, Aleksa Sarai wrote:
> > --- a/fs/open.c
> > +++ b/fs/open.c
> > @@ -928,24 +928,32 @@ struct file *open_with_fake_path(const struct path
> > *path, int flags,
> > }
> > EXPORT_SYMBOL(open_with_fake_path);
> >
> > -static inline
On Sat, Jul 6, 2019 at 5:00 PM Aleksa Sarai wrote:
> diff --git a/arch/alpha/kernel/syscalls/syscall.tbl
> b/arch/alpha/kernel/syscalls/syscall.tbl
> index 9e7704e44f6d..1703d048c141 100644
> --- a/arch/alpha/kernel/syscalls/syscall.tbl
> +++ b/arch/alpha/kernel/syscalls/syscall.tbl
> @@ -461,6
On 06/07/2019 16.57, Aleksa Sarai wrote:
>
> --- a/fs/open.c
> +++ b/fs/open.c
> @@ -928,24 +928,32 @@ struct file *open_with_fake_path(const struct path
> *path, int flags,
> }
> EXPORT_SYMBOL(open_with_fake_path);
>
> -static inline int build_open_flags(int flags, umode_t mode, struct
>
The most obvious syscall to add support for the new LOOKUP_* scoping
flags would be openat(2). However, there are a few reasons to not do
this:
* The new LOOKUP_* flags are intended to be security features, and
openat(2) will silently ignore all unknown flags. This means that
users would
10 matches
Mail list logo
