Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Add missing drm_crtc_commit_put Commit 9ec03d7f1ed3 ("drm/vc4: kms: Wait on previous FIFO users before a commit") introduced a global state for the HVS, with each FIFO storing the current CRTC commit so that we can properly synchronize commits. However, the refcounting was off and we thus ended up leaking the drm_crtc_commit structure every commit. Add a drm_crtc_commit_put to prevent the leakage.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9ec03d7f1ed394897891319a4dda75f52c5d292d before 53f9601e908d42481addd67cdb01a9288c611124; affected 9ec03d7f1ed394897891319a4dda75f52c5d292d before 049cfff8d53a30cae3349ff71a4c01b7d9981bc2 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 5.15.7 through 5.15.*; unaffected 5.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/53f9601e908d42481addd67cdb01a9288c611124
- https://git.kernel.org/stable/c/049cfff8d53a30cae3349ff71a4c01b7d9981bc2
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.