vulnerability
Oracle Linux: CVE-2024-43864: ELSA-2025-20095: Unbreakable Enterprise kernel security update (IMPORTANT)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | 2024-08-20 | 2025-02-10 | 2025-02-25 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
2024-08-20
Added
2025-02-10
Modified
2025-02-25
Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix CT entry update leaks of modify header context
The cited commit allocates a new modify header to replace the old
one when updating CT entry. But if failed to allocate a new one, eg.
exceed the max number firmware can support, modify header will be
an error pointer that will trigger a panic when deallocating it. And
the old modify header point is copied to old attr. When the old
attr is freed, the old modify header is lost.
Fix it by restoring the old attr to attr when failed to allocate a
new modify header context. So when the CT entry is freed, the right
modify header context will be freed. And the panic of accessing
error pointer is also fixed.
A use-after-free flaw was found in the Linux kernel when offloading connection tracking rules via tc ct action functionality. This issue could allow a local user to crash the system.
net/mlx5e: Fix CT entry update leaks of modify header context
The cited commit allocates a new modify header to replace the old
one when updating CT entry. But if failed to allocate a new one, eg.
exceed the max number firmware can support, modify header will be
an error pointer that will trigger a panic when deallocating it. And
the old modify header point is copied to old attr. When the old
attr is freed, the old modify header is lost.
Fix it by restoring the old attr to attr when failed to allocate a
new modify header context. So when the CT entry is freed, the right
modify header context will be freed. And the panic of accessing
error pointer is also fixed.
A use-after-free flaw was found in the Linux kernel when offloading connection tracking rules via tc ct action functionality. This issue could allow a local user to crash the system.
Solution
oracle-linux-upgrade-kernel-uek

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