diff options
| author |   Adam Borowski <kilobyte@angband.pl> | 2017-06-03 09:35:09 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-09 11:07:36 +0200 |
| commit | f8564c93e0907651e21d586920e629227bb0d024 (patch) | |
| tree | 7114d314124df5386adf771fbb3c5d805be5248e /drivers/tty/vt/vt_ioctl.c | |
| parent | vt: use memdup_user in PIO_UNIMAP ioctl (diff) | |
| download | linux-dev-f8564c93e0907651e21d586920e629227bb0d024.tar.xz linux-dev-f8564c93e0907651e21d586920e629227bb0d024.zip | |
vt: drop access_ok() calls in unimap ioctls
Done by copy_{from,to}_user().
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt/vt_ioctl.c')
| -rw-r--r-- | drivers/tty/vt/vt_ioctl.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index 0cbfe1ff6f6c..96d389cb506c 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -266,10 +266,6 @@ do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud, int perm, struct vc_ if (copy_from_user(&tmp, user_ud, sizeof tmp)) return -EFAULT; - if (tmp.entries) - if (!access_ok(VERIFY_WRITE, tmp.entries, - tmp.entry_ct*sizeof(struct unipair))) - return -EFAULT; switch (cmd) { case PIO_UNIMAP: if (!perm) @@ -1170,10 +1166,6 @@ compat_unimap_ioctl(unsigned int cmd, struct compat_unimapdesc __user *user_ud, if (copy_from_user(&tmp, user_ud, sizeof tmp)) return -EFAULT; tmp_entries = compat_ptr(tmp.entries); - if (tmp_entries) - if (!access_ok(VERIFY_WRITE, tmp_entries, - tmp.entry_ct*sizeof(struct unipair))) - return -EFAULT; switch (cmd) { case PIO_UNIMAP: if (!perm) |