Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2022-39842

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.6%
CVSS Severity
CVSS v3 Score 6.1
Products affected by CVE-2022-39842


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