Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2024-41055

In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfn_section_valid() Commit 5ec8e8ea8b77 ("mm/sparsemem: fix race in accessing memory_section->usage") changed pfn_section_valid() to add a READ_ONCE() call around "ms->usage" to fix a race with section_deactivate() where ms->usage can be cleared. The READ_ONCE() call, by itself, is not enough to prevent NULL pointer dereference. We need to check its value before dereferencing it.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.9%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2024-41055


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