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I. Basic Information for CVE-2021-47659
Vulnerability Information

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Vulnerability Title
drm/plane: Move range check for format_count earlier
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于未提前检查format_count范围导致资源消耗。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux e6fc3b68558e4c6d8d160b5daf2511b99afa8814 ~ 4ab7e453a3ee88c274cf97bee9487ab92a66d313 -
LinuxLinux 4.14 -
II. Public POCs for CVE-2021-47659
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III. Intelligence Information for CVE-2021-47659
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IV. Related Vulnerabilities
V. Comments for CVE-2021-47659

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