diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2022-08-25 23:49:32 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2022-08-25 23:49:32 +0000 |
| commit | fca82ab182bf8dca322bb7ac7f57bd44bc864c3a (patch) | |
| tree | bd49f002652279f785c5a7e4b94c152c97e48933 | |
| parent | e3be7a0e8307ca47b92e4d1ca282b6d2b5e4a6c0 (diff) | |
drm/ttm: Fix dummy res NULL ptr deref bug
From Arunpravin Paneer Selvam
76672cd326c146ded2c2712ff257b8908dcf23d8 in linux 5.15.y/5.15.63
cf4b7387c0a842d64bdd7c353e6d3298174a7740 in mainline linux
| -rw-r--r-- | sys/dev/pci/drm/ttm/ttm_bo.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/ttm/ttm_bo.c b/sys/dev/pci/drm/ttm/ttm_bo.c index d66b8341081..81d9aeafec8 100644 --- a/sys/dev/pci/drm/ttm/ttm_bo.c +++ b/sys/dev/pci/drm/ttm/ttm_bo.c @@ -987,7 +987,7 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, /* * We might need to add a TTM. */ - if (bo->resource->mem_type == TTM_PL_SYSTEM) { + if (!bo->resource || bo->resource->mem_type == TTM_PL_SYSTEM) { ret = ttm_tt_create(bo, true); if (ret) return ret; |