Le 11/02/2018 à 18:47, Samuel Thibault a écrit :
> We properly computed the capped mask size to be put to the application
> buffer, but didn't actually used it. Also, we need to return the capped mask
> size instead of 0 on success.
>
> Signed-off-by: Samuel Thibault <samuel.thiba...@ens-lyon.org>
>
> ---
> Difference from v1:
> - simplify fix
> ---
> linux-user/syscall.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 82b35a6bdf..bcda3362fc 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -10493,7 +10493,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
> arg1,
> ret = arg2;
> }
>
> - ret = host_to_target_cpu_mask(mask, mask_size, arg3, arg2);
> + if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
> + goto efault;
> + }
> }
> }
> break;
>
Applied to my 'linux-user-for-2.12' branch.
Thanks,
Laurent
