CVE-2023-53388
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Clean dangling pointer on bind error path mtk_drm_bind() can fail, in which case drm_dev_put() is called, destroying the drm_device object.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Clean dangling pointer on bind error path mtk_drm_bind() can fail, in which case drm_dev_put() is called, destroying the drm_device object. However a pointer to it was still being held in the private object, and that pointer would be passed along to DRM in mtk_drm_sys_prepare() if a suspend were triggered at that point, resulting in a panic. Clean the pointer when destroying the object in the error path to prevent this from happening.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.15% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/36aa8c61af55675ed967900fbe5deb32d776f051Patch
- https://git.kernel.org/stable/c/49cf87919daeeeeeb9e924c39bdd9203af434461Patch
- https://git.kernel.org/stable/c/6a89ddee1686a8872384aaa9f0bcfa6b675acd86Patch
- https://git.kernel.org/stable/c/7b551a501fa714890e55bae73efede1185728d72Patch
- https://git.kernel.org/stable/c/9a48f99aa7bea15e0b1d8b0040c46b4792eddf3bPatch
- https://git.kernel.org/stable/c/a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5Patch
- https://git.kernel.org/stable/c/f3887c771576c5d740c5c5b8bf654a8ab8020b7dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.