CVE-2023-53388
drm/mediatek: Clean dangling pointer on bind error path
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.7
References 7
git.kernel.org
- stable/c/9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b
- stable/c/a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5
- stable/c/6a89ddee1686a8872384aaa9f0bcfa6b675acd86
- stable/c/49cf87919daeeeeeb9e924c39bdd9203af434461
- stable/c/7b551a501fa714890e55bae73efede1185728d72
- stable/c/f3887c771576c5d740c5c5b8bf654a8ab8020b7d
- stable/c/36aa8c61af55675ed967900fbe5deb32d776f051