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patch "vt: clear selection before resizing" added to tty-linus

PATCH [email protected] 1 participant 1 message Oct 27, 2016

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This is a note to let you know that I've just added the patch titled

vt: clear selection before resizing

to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

Quoted 1 line

From 009e39ae44f4191188aeb6dfbf661b771dbbe515 Mon Sep 17 00:00:00 2001

From: Scot Doyle <[email protected]>
Date: Thu, 13 Oct 2016 12:12:43 -0500
Subject: vt: clear selection before resizing

When resizing a vt its selection may exceed the new size, resulting in an invalid memory access [1]. Clear the selection before resizing.

[1] http://lkml.kernel.org/r/CACT4Y+acDTwy4umEvf5ROBGiRJNrxHN4Cn5szCXE5Jw-d1B=Xw@mail.gmail.com

---
 drivers/tty/vt/vt.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/tty/vt/vt.c +3 -0
index 26cda08bc611..8c3bf3d613c0 100644
@@ -876,6 +876,9 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
 	if (!newscreen)
 		return -ENOMEM;
 
+	if (vc == sel_cons)
+		clear_selection();
+
 	old_rows = vc->vc_rows;
 	old_row_size = vc->vc_size_row;
 
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