[PATCH] compat_sys_vmsplice: one-off in UIO_MAXIOV check
nr_segs may not be > UIO_MAXIOV, however it may be equal to. This makes the behaviour identical to the real sys_vmsplice(). The other foov syscalls also agree that this is the way to go. Signed-off-by: Jens Axboe <axboe@suse.de>
This commit is contained in:
Родитель
a0548871ed
Коммит
98232d504d
|
@ -1323,7 +1323,7 @@ compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32,
|
||||||
{
|
{
|
||||||
unsigned i;
|
unsigned i;
|
||||||
struct iovec *iov;
|
struct iovec *iov;
|
||||||
if (nr_segs >= UIO_MAXIOV)
|
if (nr_segs > UIO_MAXIOV)
|
||||||
return -EINVAL;
|
return -EINVAL;
|
||||||
iov = compat_alloc_user_space(nr_segs * sizeof(struct iovec));
|
iov = compat_alloc_user_space(nr_segs * sizeof(struct iovec));
|
||||||
for (i = 0; i < nr_segs; i++) {
|
for (i = 0; i < nr_segs; i++) {
|
||||||
|
|
Загрузка…
Ссылка в новой задаче