drm/plane: Move range check for format_count earlier (Linux Linux)

CVE-2021-47659
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.27 % · percentile 19 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < 4ab7e453a3ee88c274cf97bee9487ab92a66d313 ; affected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < 1e29d829ad51d1472dd035487953a6724b56fc33 ; affected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < b5cd108143513e4498027b96ec4710702d186f11 ; affected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < 978e3d023256bfaf34a0033d40c94e8a8e70cf3c ; affected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < 787163d19bc3cdc6ca4b96223f62208534d1cf6b ; affected e6fc3b68558e4c6d8d160b5daf2511b99afa8814 < ad6dd7a2bac86118985c7b3426e175b9d3c1ec4f
Linux · Linuxaffected 4.14 ; unaffected 0 < 4.14 ; unaffected 4.19.247 ≤ 4.19.* ; unaffected 5.4.198 ≤ 5.4.* ; unaffected 5.10.121 ≤ 5.10.* ; unaffected 5.15.46 ≤ 5.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD