CVE-2021-47659
Intel Linux Kernel Array Leak Vulnerability
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.
INFO
Published Date :
Feb. 26, 2025, 6:37 a.m.
Last Modified :
Feb. 26, 2025, 6:37 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
Public PoC/Exploit Available at Github
CVE-2021-47659 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2021-47659.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2021-47659 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47659 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/1e29d829ad51d1472dd035487953a6724b56fc33 Added Reference https://git.kernel.org/stable/c/4ab7e453a3ee88c274cf97bee9487ab92a66d313 Added Reference https://git.kernel.org/stable/c/4b674dd69701c2e22e8e7770c1706a69f3b17269 Added Reference https://git.kernel.org/stable/c/787163d19bc3cdc6ca4b96223f62208534d1cf6b Added Reference https://git.kernel.org/stable/c/978e3d023256bfaf34a0033d40c94e8a8e70cf3c Added Reference https://git.kernel.org/stable/c/ad6dd7a2bac86118985c7b3426e175b9d3c1ec4f Added Reference https://git.kernel.org/stable/c/b5cd108143513e4498027b96ec4710702d186f11
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47659 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47659
weaknesses.