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authorJoel Stanley <joel@jms.id.au>2016-11-21 02:38:38 +0300
committerJoel Stanley <joel@jms.id.au>2016-11-21 02:38:47 +0300
commitc55cf1296a0429d91b940a49a59977617a4e4cb3 (patch)
tree11d7ae008a0ad5bfe4110966b6df7c44cff723fd /drivers/tty/vt/vt.c
parent5509e6ee766f6b910c3b81c02bae291fc1d9a806 (diff)
parent86429bd405de5741df4127096deae0b1d90b68f1 (diff)
downloadlinux-dev-4.4.tar.xz
Merge tag 'v4.4.33' into dev-4.4openbmc-4.4-20161121-1dev-4.4
This is the 4.4.33 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/tty/vt/vt.c')
-rw-r--r--drivers/tty/vt/vt.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 136ebaaa9cc0..5ab54ef4f304 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -872,10 +872,15 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
return 0;
+ if (new_screen_size > (4 << 20))
+ return -EINVAL;
newscreen = kmalloc(new_screen_size, GFP_USER);
if (!newscreen)
return -ENOMEM;
+ if (vc == sel_cons)
+ clear_selection();
+
old_rows = vc->vc_rows;
old_row_size = vc->vc_size_row;
@@ -1173,7 +1178,7 @@ static void csi_J(struct vc_data *vc, int vpar)
break;
case 3: /* erase scroll-back buffer (and whole display) */
scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char,
- vc->vc_screenbuf_size >> 1);
+ vc->vc_screenbuf_size);
set_origin(vc);
if (CON_IS_VISIBLE(vc))
update_screen(vc);