linux-kernel - [PATCH 1/7] fbdev: Avoid vertical overflow when making space for the logo

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.62.0701311328170.15066@pademelon.sonytel.be>
Date:	Wed, 31 Jan 2007 13:43:55 +0100 (CET)
From:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
To:	James Simmons <jsimmons@...radead.org>
cc:	Linux Frame Buffer Device Development 
	<linux-fbdev-devel@...ts.sourceforge.net>,
	Cell Broadband Engine OSS Development 
	<cbe-oss-dev@...abs.org>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/7] fbdev: Avoid vertical overflow when making space for
 the logo

fbcon_prepare_logo(): Avoid vertical overflow when making space for the logo

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@...sony.com>
---
 drivers/video/console/fbcon.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

--- ps3-linux-2.6.20-rc7.orig/drivers/video/console/fbcon.c
+++ ps3-linux-2.6.20-rc7/drivers/video/console/fbcon.c
@@ -619,8 +619,13 @@ static void fbcon_prepare_logo(struct vc
 			r -= cols;
 		}
 		if (!save) {
-			vc->vc_y += logo_lines;
-			vc->vc_pos += logo_lines * vc->vc_size_row;
+			int lines;
+			if (vc->vc_y + logo_lines >= rows)
+				lines = rows - vc->vc_y - 1;
+			else
+				lines = logo_lines;
+			vc->vc_y += lines;
+			vc->vc_pos += lines * vc->vc_size_row;
 		}
 	}
 	scr_memsetw((unsigned short *) vc->vc_origin,

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE)
Geert.Uytterhoeven@...ycom.com ------- The Corporate Village, Da Vincilaan 7-D1
Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/