linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Peilin Ye <yepeilin.cs@gmail.com>
Cc: David Laight <David.Laight@ACULAB.COM>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Jiri Slaby <jirislaby@kernel.org>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
	linux-kernel-mentees@lists.linuxfoundation.org,
	syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] Prevent out-of-bounds access for built-in font data buffers
Date: Thu, 24 Sep 2020 18:45:16 +0300	[thread overview]
Message-ID: <20200924154516.GL4282@kadam> (raw)
In-Reply-To: <20200924153035.GA879703@PWN>

Smatch has a tool to show where struct members are set.

`~/smatch/smatch_data/db/smdb.py where console_font height`

It's not perfect and this output comes from allmodconfig on yesterday's
linux-next.

regards,
dan carpenter

drivers/video/console/vgacon.c | vgacon_init                    | (struct console_font)->height | 0-32
drivers/video/console/vgacon.c | vgacon_adjust_height           | (struct console_font)->height | 1-32
drivers/video/fbdev/core/fbcon.c | fbcon_startup                  | (struct console_font)->height | 6,8,10-11,14,16,18,22,32
drivers/video/fbdev/core/fbcon.c | fbcon_init                     | (struct console_font)->height | 6,8,10-11,14,16,18,22,32
drivers/video/fbdev/core/fbcon.c | fbcon_do_set_font              | (struct console_font)->height | 0-u32max
drivers/video/fbdev/core/fbcon.c | fbcon_set_def_font             | (struct console_font)->height | 6,8,10-11,14,16,18,22,32
drivers/usb/misc/sisusbvga/sisusb_con.c | sisusbcon_init                 | (struct console_font)->height | 0-u32max
drivers/usb/misc/sisusbvga/sisusb_con.c | sisusbcon_do_font_op           | (struct console_font)->height | 1-32
drivers/tty/vt/vt_ioctl.c      | vt_k_ioctl                     | (struct console_font)->height | ignore
drivers/tty/vt/vt_ioctl.c      | vt_resizex                     | (struct console_font)->height | 0-u32max
drivers/tty/vt/vt_ioctl.c      | vt_ioctl                       | (struct console_font)->height | ignore
drivers/tty/vt/vt_ioctl.c      | vt_compat_ioctl                | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | vc_allocate                    | (struct console_font)->height | 0
drivers/tty/vt/vt.c            | vt_resize                      | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | do_con_write                   | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | con_unthrottle                 | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | con_flush_chars                | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | con_shutdown                   | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | con_cleanup                    | (struct console_font)->height | ignore
drivers/tty/vt/vt.c            | con_init                       | (struct console_font)->height | 0
drivers/tty/vt/vt.c            | con_font_set                   | (struct console_font)->height | 1-32
drivers/tty/vt/vt.c            | con_font_default               | (struct console_font)->height | 0-u32max
drivers/tty/vt/selection.c     | paste_selection                | (struct console_font)->height | ignore


  reply	other threads:[~2020-09-24 15:45 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-10  4:35 KASAN: global-out-of-bounds Read in fbcon_get_font syzbot
2020-01-01 17:40 ` syzbot
2020-09-24 13:38 ` [PATCH 0/3] Prevent out-of-bounds access for built-in font data buffers Peilin Ye
2020-09-24 13:40   ` [PATCH 1/3] fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h Peilin Ye
2020-09-24 13:42     ` [PATCH 2/3] Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts Peilin Ye
2020-09-24 13:43       ` [PATCH 3/3] fbcon: Fix global-out-of-bounds read in fbcon_get_font() Peilin Ye
2020-09-24 14:09   ` [PATCH 0/3] Prevent out-of-bounds access for built-in font data buffers Greg Kroah-Hartman
2020-09-24 14:25     ` Peilin Ye
2020-09-24 14:42     ` David Laight
2020-09-24 15:30       ` Peilin Ye
2020-09-24 15:45         ` Dan Carpenter [this message]
2020-09-24 16:59           ` Peilin Ye
2020-09-25  8:38     ` Daniel Vetter
2020-09-25  6:46   ` Jiri Slaby
2020-09-25 10:13     ` Peilin Ye
2020-09-25 13:25       ` Daniel Vetter
2020-09-25 15:35         ` Peilin Ye
2020-09-29  9:09           ` Daniel Vetter
2020-09-29  9:44             ` Peilin Ye
2020-09-29 12:34         ` Peilin Ye
2020-09-29 14:38           ` Daniel Vetter
2020-09-30  7:11             ` Peilin Ye
2020-09-30  9:53               ` Daniel Vetter
2020-09-30 10:55                 ` Peilin Ye
2020-09-30 11:25                   ` Daniel Vetter
2020-09-30 11:52                     ` Greg Kroah-Hartman
2020-09-30 12:58                       ` Peilin Ye
2020-09-30  5:26           ` Jiri Slaby
2020-09-30  7:16             ` Peilin Ye

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200924154516.GL4282@kadam \
    --to=dan.carpenter@oracle.com \
    --cc=David.Laight@ACULAB.COM \
    --cc=b.zolnierkie@samsung.com \
    --cc=daniel.vetter@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=jirislaby@kernel.org \
    --cc=linux-fbdev@vger.kernel.org \
    --cc=linux-kernel-mentees@lists.linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=syzkaller-bugs@googlegroups.com \
    --cc=yepeilin.cs@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).