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authorAdam Borowski <kilobyte@angband.pl>2017-06-03 09:35:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 11:07:36 +0200
commitf8564c93e0907651e21d586920e629227bb0d024 (patch)
tree7114d314124df5386adf771fbb3c5d805be5248e /drivers/tty
parent4f1be1b5d9aaef9c887140de5f2b9c2a989577d8 (diff)
downloadlinux-f8564c93e0907651e21d586920e629227bb0d024.tar.bz2
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')
-rw-r--r--drivers/tty/vt/vt_ioctl.c8
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)