Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm: Fix drm_pending_vblank_event leak in error path for out_fence_ptr When an out_fence_ptr is provided but DRM_MODE_PAGE_FLIP_EVENT is not set, a drm_pending_vblank_event will be allocated. If later, there is an allocation failure or another failure at setup_out_fence(), that event will not have base.fence set and it will not be released at complete_signaling(). Release the event and set crtc_state->event to NULL just like in the DRM_MODE_PAGE_FLIP_EVENT case when there is a failure at drm_event_reserve_init(). That is, prepare_signaling() releases the event and there is nothing to be done at complete_signaling(). Use drm_event_cancel_free() as that will also undo drm_event_reserve_init() in case it has been called.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 92c715fca907686f5298220ece53423e38ba3aed before 3d6576ed3de01e8a378397b7020e33ae3d40aa6c; affected 92c715fca907686f5298220ece53423e38ba3aed before 86c33f740aa27e9cdc1259f0cc59c9c58f545e4b; affected 92c715fca907686f5298220ece53423e38ba3aed before 88c450e23b8fd4f1dcd329562f5e81ef05f3d941; affected 92c715fca907686f5298220ece53423e38ba3aed before 780716e2e019186fa6e5aad097a44b87b0b5388f; affected 92c715fca907686f5298220ece53423e38ba3aed before d0be0516b5224eb5b6f42f8564a8deadb20ae16b; affected 92c715fca907686f5298220ece53423e38ba3aed before daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09; affected 92c715fca907686f5298220ece53423e38ba3aed before b9a68a9ccaada15d8dd0102c188cc6b868ff800b; affected 92c715fca907686f5298220ece53423e38ba3aed before 9eb1a393c89a79c4210230d23e7d88d239c61d7b; affected 4cd462c7f2b6fcc208aebf44f2c831681feaa925; affected 4.9.10 before 4.10 |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3d6576ed3de01e8a378397b7020e33ae3d40aa6c
- https://git.kernel.org/stable/c/86c33f740aa27e9cdc1259f0cc59c9c58f545e4b
- https://git.kernel.org/stable/c/88c450e23b8fd4f1dcd329562f5e81ef05f3d941
- https://git.kernel.org/stable/c/780716e2e019186fa6e5aad097a44b87b0b5388f
- https://git.kernel.org/stable/c/d0be0516b5224eb5b6f42f8564a8deadb20ae16b
- https://git.kernel.org/stable/c/daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09
- https://git.kernel.org/stable/c/b9a68a9ccaada15d8dd0102c188cc6b868ff800b
- https://git.kernel.org/stable/c/9eb1a393c89a79c4210230d23e7d88d239c61d7b