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Groups > linux.kernel > #1620901

[PATCH] drm: i915: Avoid format string expansion from engine names

From Kees Cook <keescook@chromium.org>
Newsgroups linux.kernel
Subject [PATCH] drm: i915: Avoid format string expansion from engine names
Date 2017-04-11 07:00 +0200
Message-ID <tuW4h-2jb-9@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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While highly unlikely, this makes sure that the string built from
engine names won't be processed as a format string.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/gpu/drm/i915/intel_hangcheck.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index f05971f5586f..be3550cec8e4 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -407,7 +407,7 @@ static void hangcheck_declare_hang(struct drm_i915_private *i915,
 				 "%s, ", engine->name);
 	msg[len-2] = '\0';
 
-	return i915_handle_error(i915, hung, msg);
+	return i915_handle_error(i915, hung, "%s", msg);
 }
 
 /*
-- 
2.7.4


-- 
Kees Cook
Pixel Security

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[PATCH] drm: i915: Avoid format string expansion from engine names Kees Cook <keescook@chromium.org> - 2017-04-11 07:00 +0200
  Re: [PATCH] drm: i915: Avoid format string expansion from engine names Jani Nikula <jani.nikula@linux.intel.com> - 2017-04-19 15:00 +0200

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