Oracle Linux: CVE-2024-41055: ELSA-2024-7000: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-41055: ELSA-2024-7000:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/29/2024

Created

11/12/2024

Added

10/16/2024

Modified

01/07/2025

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.

Solution(s)

• oracle-linux-upgrade-kernel

References

• https://attackerkb.com/topics/cve-2024-41055
• CVE - 2024-41055
• ELSA-2024-7000
• ELSA-2024-6567