Le 15/06/2021 à 09:21, Christoph Hellwig a écrit :
On Tue, Jun 15, 2021 at 09:03:42AM +0200, Christophe Leroy wrote:
Le 15/06/2021 ?? 08:52, Christoph Hellwig a ??crit??:
On Tue, Jun 15, 2021 at 06:41:01AM +, Christophe Leroy wrote:
+ unsafe_copy_to_user(__ucs_to, __ucs_from,
On Tue, Jun 15, 2021 at 09:03:42AM +0200, Christophe Leroy wrote:
>
>
> Le 15/06/2021 ?? 08:52, Christoph Hellwig a ??crit??:
> > On Tue, Jun 15, 2021 at 06:41:01AM +, Christophe Leroy wrote:
> > > + unsafe_copy_to_user(__ucs_to, __ucs_from, \
> > > +
Le 15/06/2021 à 08:52, Christoph Hellwig a écrit :
On Tue, Jun 15, 2021 at 06:41:01AM +, Christophe Leroy wrote:
+ unsafe_copy_to_user(__ucs_to, __ucs_from, \
+ sizeof(struct kernel_siginfo), label); \
+ unsafe_clear_user(__
On Tue, Jun 15, 2021 at 06:41:01AM +, Christophe Leroy wrote:
> + unsafe_copy_to_user(__ucs_to, __ucs_from, \
> + sizeof(struct kernel_siginfo), label); \
> + unsafe_clear_user(__ucs_expansion, SI_EXPANSION_SIZE, label); \
> +} while
In the same spirit as commit fb05121fd6a2 ("signal: Add
unsafe_get_compat_sigset()"), implement an 'unsafe' version of
copy_siginfo_to_user() in order to use it within user access blocks.
For that, also add an 'unsafe' version of clear_user().
Signed-off-by: Christophe Leroy
---
include/linux/s
