CVE-2021-47659
drm/plane: Move range check for format_count earlier
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/plane: Move range check for format_count earlier While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.14
References 7
git.kernel.org
- stable/c/4ab7e453a3ee88c274cf97bee9487ab92a66d313
- stable/c/1e29d829ad51d1472dd035487953a6724b56fc33
- stable/c/b5cd108143513e4498027b96ec4710702d186f11
- stable/c/978e3d023256bfaf34a0033d40c94e8a8e70cf3c
- stable/c/787163d19bc3cdc6ca4b96223f62208534d1cf6b
- stable/c/ad6dd7a2bac86118985c7b3426e175b9d3c1ec4f
- stable/c/4b674dd69701c2e22e8e7770c1706a69f3b17269