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From: Helge Deller <deller@gmx.de>
To: linux-fbdev@vger.kernel.org, daniel.vetter@ffwll.ch,
	dri-devel@lists.freedesktop.org, deller@gmx.de
Subject: [PATCH v2 0/4] fbcon: Fixes for screen resolution changes
Date: Sat, 25 Jun 2022 14:24:58 +0200	[thread overview]
Message-ID: <20220625122502.68095-1-deller@gmx.de> (raw)

This series fixes possible out-of-bound memory accesses when users trigger
screen resolutions changes with invalid input parameters, e.g.  configure
screen which is smaller than the current font size, or if the virtual screen
size is smaller than the physical screen size.

Helge Deller (4):
  fbcon: Disallow setting font bigger than screen size
  fbcon: Add fbcon_modechange_possible() check
  fbmem: Fix input parameter checks for user-provided screen resolution
    changes
  fbmem: Catch possible driver bugs regarding too small virtual screen
    size

 drivers/video/fbdev/core/fbcon.c | 31 +++++++++++++++++++++++++++++++
 drivers/video/fbdev/core/fbmem.c | 14 +++++++++++++-
 include/linux/fbcon.h            |  4 ++++
 3 files changed, 48 insertions(+), 1 deletion(-)

--
2.35.3


             reply	other threads:[~2022-06-25 12:25 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-25 12:24 Helge Deller [this message]
2022-06-25 12:24 ` [PATCH v2 1/4] fbcon: Disallow setting font bigger than screen size Helge Deller
2022-06-25 12:45   ` Daniel Vetter
2022-06-25 12:45     ` Daniel Vetter
2022-06-25 14:53     ` Helge Deller
2022-06-25 14:53       ` Helge Deller
2022-06-25 22:27       ` Daniel Vetter
2022-06-25 22:27         ` Daniel Vetter
2022-06-25 22:32         ` Daniel Vetter
2022-06-25 22:32           ` Daniel Vetter
2022-06-25 12:25 ` [PATCH v2 2/4] fbcon: Add fbcon_modechange_possible() check Helge Deller
2022-06-25 12:55   ` Daniel Vetter
2022-06-25 12:55     ` Daniel Vetter
2022-06-25 15:14     ` Helge Deller
2022-06-25 15:14       ` Helge Deller
2022-06-25 22:31       ` Daniel Vetter
2022-06-25 22:31         ` Daniel Vetter
2022-06-25 12:25 ` [PATCH v2 3/4] fbmem: Fix input parameter checks for user-provided screen resolution changes Helge Deller
2022-06-25 12:56   ` Daniel Vetter
2022-06-25 12:56     ` Daniel Vetter
2022-06-25 13:00     ` Daniel Vetter
2022-06-25 13:00       ` Daniel Vetter
2022-06-25 15:36       ` Helge Deller
2022-06-25 15:36         ` Helge Deller
2022-06-25 15:19     ` Helge Deller
2022-06-25 15:19       ` Helge Deller
2022-06-25 12:25 ` [PATCH v2 4/4] fbmem: Catch possible driver bugs regarding too small virtual screen size Helge Deller
2022-06-25 13:03   ` Daniel Vetter
2022-06-25 13:03     ` Daniel Vetter
2022-06-25 15:38     ` Helge Deller
2022-06-25 15:38       ` Helge Deller

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