Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 输入验证错误漏洞
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 5.19 之前版本存在输入验证错误漏洞，该漏洞源于在drivers/video/fbdev/pxa3xx-gcu.c中的pxa3xx_gcu_write中，count参数存在size_t与int的类型冲突，导致整数溢出并绕过大小检查，因为它被用作copy_from_user()的第三个参数，所以可能会发生堆溢出。
CVSS Information
N/A
Vulnerability Type
N/A