vulnerability
Oracle Linux: CVE-2021-47018: ELSA-2024-5101: kernel security update (IMPORTANT)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 1 | (AV:L/AC:L/Au:M/C:N/I:N/A:P) | Feb 28, 2024 | Oct 16, 2024 | Jun 30, 2025 |
Severity
1
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:P)
Published
Feb 28, 2024
Added
Oct 16, 2024
Modified
Jun 30, 2025
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.
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
oracle-linux-upgrade-kernel
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