diff options
| author | Simon Richter <Simon.Richter@hogyros.de> | 2025-10-14 01:11:33 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-08 10:17:18 +0100 |
| commit | b94182b3d7228aec18d069cba56d5982e9bfe1b1 (patch) | |
| tree | e6637145ee62cd7147210d2d1c7a4b2abea71d9c /include/net/aligned_data.h | |
| parent | 71be8825e83c90c1e020feb77b29e6a99629e642 (diff) | |
drm/ttm: Avoid NULL pointer deref for evicted BOs
commit 491adc6a0f9903c32b05f284df1148de39e8e644 upstream.
It is possible for a BO to exist that is not currently associated with a
resource, e.g. because it has been evicted.
When devcoredump tries to read the contents of all BOs for dumping, we need
to expect this as well -- in this case, ENODATA is recorded instead of the
buffer contents.
Fixes: 7d08df5d0bd3 ("drm/ttm: Add ttm_bo_access")
Fixes: 09ac4fcb3f25 ("drm/ttm: Implement vm_operations_struct.access v2")
Cc: stable <stable@kernel.org>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6271
Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251013161241.709916-1-Simon.Richter@hogyros.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions