Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-47567

In the Linux kernel, the following vulnerability has been resolved: powerpc/32: Fix hardlockup on vmap stack overflow Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct") a vmap stack overflow results in a hard lockup. This is because emergency_ctx is still addressed with its virtual address allthough data MMU is not active anymore at that time. Fix it by using a physical address instead.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.3%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2021-47567


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