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I. Basic Information for CVE-2022-50036
Vulnerability Information

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Vulnerability Title
drm/sun4i: dsi: Prevent underflow when computing packet sizes
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when computing packet sizes Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could underflow and wrap around to near the maximal u16 value. Fix this by using signed subtraction. The call to max() will correctly handle any negative numbers that are produced. Apply the same fix to the other timings, even though those subtractions are less likely to underflow.
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,该漏洞源于无符号减法,可能导致下溢。
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 133add5b5ad42b7bb5fcd59d681aef6475d08600 ~ a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26 -
LinuxLinux 4.18 -
II. Public POCs for CVE-2022-50036
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III. Intelligence Information for CVE-2022-50036
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IV. Related Vulnerabilities
V. Comments for CVE-2022-50036

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