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Oracle Linux: CVE-2021-47018: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2021-47018: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

Severity
1
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:P)
Published
02/28/2024
Created
11/13/2024
Added
10/16/2024
Modified
11/29/2024

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space. Because of circular dependencies, it is not possible to include asm/fixmap.h in asm/book3s/64/pgtable.h , so define a fixed size AREA at the top of the I/O space for fixmap and ensure during build that the size is big enough. A flaw was found in the Linux kernel. The fixmap area that was defined for the PPC64 architecture was invalid.

Solution(s)

  • oracle-linux-upgrade-kernel

References

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