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| author | Kees Cook <keescook@chromium.org> | 2013-03-11 12:25:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-28 12:12:05 -0700 |
| commit | 74a523fb1759bd3afabf586740041e6d09d731c2 (patch) | |
| tree | ada097002b7e7d5c9449744a010ddd8758bc05be /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | cb8a0948b8cc114aa7d4ff5e787f20d3a77ade0e (diff) | |
| download | lwn-74a523fb1759bd3afabf586740041e6d09d731c2.tar.gz lwn-74a523fb1759bd3afabf586740041e6d09d731c2.zip | |
drm/i915: restrict kernel address leak in debugfs
commit 2563a4524febe8f4a98e717e02436d1aaf672aa2 upstream.
Masks kernel address info-leak in object dumps with the %pK suffix,
so they cannot be used to target kernel memory corruption attacks if
the kptr_restrict sysctl is set.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e6162a1681f0..34791fb7aa78 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -122,7 +122,7 @@ static const char *cache_level_str(int type) static void describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) { - seq_printf(m, "%p: %s%s %8zdKiB %04x %04x %d %d%s%s%s", + seq_printf(m, "%pK: %s%s %8zdKiB %04x %04x %d %d%s%s%s", &obj->base, get_pin_flag(obj), get_tiling_flag(obj), |