CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.
CVE
CVE-2024-41055
Severity
MEDIUM
CVSS
5.5
EPSS
0.26%
Linux
Original NVD Description
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.
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