Le 30/05/2019 à 17:25, Giuseppe Musacchio a écrit :
> The `event` parameter is ignored by the kernel if `op` is EPOLL_CTL_DEL,
> do the same and avoid returning EFAULT if garbage is passed instead of a
> valid pointer.
>
> Signed-off-by: Giuseppe Musacchio <thatle...@gmail.com>
> ---
> linux-user/syscall.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 5e29e675e9..32d463d58d 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -11329,7 +11329,7 @@ static abi_long do_syscall1(void *cpu_env, int
> num, abi_long arg1,
> {
> struct epoll_event ep;
> struct epoll_event *epp = 0;
> - if (arg4) {
> + if (arg2 != EPOLL_CTL_DEL && arg4) {
> struct target_epoll_event *target_ep;
> if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
> return -TARGET_EFAULT;
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
