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I. Basic Information for CVE-2021-20292
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nouveau 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nouveau是一款开源显卡驱动程序。 Nouveau DRM 子系统中的drivers/gpu/drm/nouveau/nouveau_sgdma.c 中的5.9 之前版本的Linux 内核中存在资源管理错误漏洞。在对对象执行操作之前未验证对象是否存在所致。具有 root 权限的本地帐户的攻击者可以利用此漏洞来提升权限并在内核上下文中执行代码。
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
-kernel Kernel 5.9 -
II. Public POCs for CVE-2021-20292
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III. Intelligence Information for CVE-2021-20292
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IV. Related Vulnerabilities
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