Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Only fini scheduler after successful init msm_ringbuffer_new() destroys a partially initialized ring through msm_ringbuffer_destroy() when an allocation or scheduler setup step fails. If drm_sched_init() fails before it finishes initializing the scheduler, the failure path still calls drm_sched_fini(). That teardown path assumes the scheduler work items, lists, and workqueue state were initialized. Track successful scheduler initialization and call drm_sched_fini() only after drm_sched_init() returned 0. This issue was found by a static analysis checker and confirmed by manual source review. Patchwork: https://patchwork.freedesktop.org/patch/738905/
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 before bd2a5a876904eaf688a093cd73986abc3571f26b; affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 before aafc9258efeec98fcb7e3998356b4b25bf1ad159; affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 before d43e1bbfd43458b9242806eec77ea3b032134baf; affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 before 09b360eb6ce345996a30fad8c86e9df80f41cd7e; affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 before e2332abed2a4d3caa59052095dc16e4ce44791ea |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bd2a5a876904eaf688a093cd73986abc3571f26b
- https://git.kernel.org/stable/c/aafc9258efeec98fcb7e3998356b4b25bf1ad159
- https://git.kernel.org/stable/c/d43e1bbfd43458b9242806eec77ea3b032134baf
- https://git.kernel.org/stable/c/09b360eb6ce345996a30fad8c86e9df80f41cd7e
- https://git.kernel.org/stable/c/e2332abed2a4d3caa59052095dc16e4ce44791ea