Add back the removed documentation for drm_gem_open_ioctl.
This patch is submitted in response to [1].
[1]
https://lore.kernel.org/linux-arm-msm/20200728085244.GY6419@phenom.ffwll.local/
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/drm_gem.c | 3 +++
1 file changed, 3 insertions(+)
diff
the potential security hole.
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/drm_gem.c | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 7bf628e..ee2058a 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm
still be
accessed to resolve this.
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/drm_gem.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 7bf628e..4b2891c 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu
Allow drivers with blob limitations to run checks before blobs
are created. This can be used to limit how much memory can be
allocated based on driver requirements.
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/drm_property.c | 7 +++
include/drm/drm_drv.h | 9 +
2 files
Limit the blob size and number of blobs that can be allocated
by a client. This prevents fuzzers from abusing this ioctl and
exhausting the system memory.
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 14 ++
1 file changed, 14 insertions(+)
diff --git
Allow msm_kms devices to register a hook to check blob count
and blob size limitations before a new blob is created.
Signed-off-by: Steve Cohen
---
drivers/gpu/drm/msm/msm_drv.c | 25 +
drivers/gpu/drm/msm/msm_kms.h | 1 +
2 files changed, 26 insertions(+)
diff --git
Fuzzers used in Android compliance testing repeatedly call the
create blob IOCTL which eventually exhausts the system memory.
This series adds a hook which allows drivers to impose their own
limitations on the size and/or number of blobs created.
Steve Cohen (3):
drm: add driver hook for create
