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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 12:06:02 -0700 |
| commit | 7ace9c4c6c590531e0cf4a61925ec2dd5947f81c (patch) | |
| tree | 07522e89aabf6175c573d8d03bc7dd61dbcff2de | |
| parent | 48a6edd00c703041a0bdfd756aa155b88b69c2b3 (diff) | |
| download | kernel_samsung_smdk4412-7ace9c4c6c590531e0cf4a61925ec2dd5947f81c.zip kernel_samsung_smdk4412-7ace9c4c6c590531e0cf4a61925ec2dd5947f81c.tar.gz kernel_samsung_smdk4412-7ace9c4c6c590531e0cf4a61925ec2dd5947f81c.tar.bz2 | |
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>
| -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 e36efdc..19bab81 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -119,7 +119,7 @@ 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 %8zd %04x %04x %d %d%s%s%s", + seq_printf(m, "%pK: %s%s %8zd %04x %04x %d %d%s%s%s", &obj->base, get_pin_flag(obj), get_tiling_flag(obj), |