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Groups > linux.kernel > #1353388

[RFC 0/7] eliminate snprintf with overlapping src and dst

From Rasmus Villemoes <linux@rasmusvillemoes.dk>
Newsgroups linux.kernel
Subject [RFC 0/7] eliminate snprintf with overlapping src and dst
Date 2016-03-08 21:50 +0100
Message-ID <rawJP-659-13@gated-at.bofh.it> (permalink)
References <qDc8N-26T-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Doing snprintf(buf, len, "%s...", buf, ...) for appending to a buffer
currently works, but it is somewhat fragile, and any other overlap
between source and destination buffers would be a definite bug. This
is an attempt at eliminating the relatively few occurences of this
pattern in the kernel.

I could use another set of eyes on all of these. The drm/amdkfd patch
is unfortunately rather large, but I couldn't find a better way to do
this.

Rasmus Villemoes (7):
  drm/amdkfd: avoid fragile and inefficient snprintf use
  Input: joystick - avoid fragile snprintf use
  leds: avoid fragile sprintf use
  drivers/media/pci/zoran: avoid fragile snprintf use
  wlcore: avoid fragile snprintf use
  [media] ati_remote: avoid fragile snprintf use
  USB: usbatm: avoid fragile and inefficient snprintf use

 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 168 +++++++++++++++---------------
 drivers/input/joystick/analog.c           |   8 +-
 drivers/leds/led-class-flash.c            |   3 +-
 drivers/media/pci/zoran/videocodec.c      |   5 +-
 drivers/media/rc/ati_remote.c             |  11 +-
 drivers/net/wireless/ti/wlcore/boot.c     |  12 ++-
 drivers/usb/atm/usbatm.c                  |  11 +-
 7 files changed, 110 insertions(+), 108 deletions(-)

-- 
2.1.4

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Thread

[RFC 0/7] eliminate snprintf with overlapping src and dst Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
  [RFC 5/7] wlcore: avoid fragile snprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
    Re: [RFC 5/7] wlcore: avoid fragile snprintf use Kalle Valo <kvalo@codeaurora.org> - 2016-03-09 12:50 +0100
  [RFC 3/7] leds: avoid fragile sprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
  [RFC 4/7] drivers/media/pci/zoran: avoid fragile snprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
  [RFC 2/7] Input: joystick - avoid fragile snprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
    Re: [RFC 2/7] Input: joystick - avoid fragile snprintf use Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-09 07:50 +0100
  [RFC 1/7] drm/amdkfd: avoid fragile and inefficient snprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-08 21:50 +0100
    Re: [RFC 1/7] drm/amdkfd: avoid fragile and inefficient snprintf use Oded Gabbay <oded.gabbay@gmail.com> - 2016-03-14 15:40 +0100
      Re: [RFC 1/7] drm/amdkfd: avoid fragile and inefficient snprintf use Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-14 20:20 +0100
  Re: [RFC 0/7] eliminate snprintf with overlapping src and dst Kees Cook <keescook@chromium.org> - 2016-03-09 00:10 +0100
  Re: [RFC 0/7] eliminate snprintf with overlapping src and dst Kees Cook <keescook@chromium.org> - 2016-03-09 00:20 +0100
  Re: [RFC 0/7] eliminate snprintf with overlapping src and dst Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-09 08:00 +0100
  Re: [RFC 0/7] eliminate snprintf with overlapping src and dst Andrew Morton <akpm@linux-foundation.org> - 2016-03-09 21:50 +0100
    Re: [RFC 0/7] eliminate snprintf with overlapping src and dst Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-03-09 23:20 +0100
    Re: [RFC 0/7] eliminate snprintf with overlapping src and dst One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-03-10 15:10 +0100

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