vulnerability
Oracle Linux: CVE-2024-43873: ELSA-2024-12815: Unbreakable Enterprise kernel security update (IMPORTANT)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | Aug 21, 2024 | Nov 21, 2024 | Dec 3, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
Aug 21, 2024
Added
Nov 21, 2024
Modified
Dec 3, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
vhost/vsock: always initialize seqpacket_allow
There are two issues around seqpacket_allow:
1. seqpacket_allow is not initialized when socket is
created. Thus if features are never set, it will be
read uninitialized.
2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,
then seqpacket_allow will not be cleared appropriately
(existing apps I know about don't usually do this but
it's legal and there's no way to be sure no one relies
on this).
To fix:
- initialize seqpacket_allow after allocation
- set it unconditionally in set_features
vhost/vsock: always initialize seqpacket_allow
There are two issues around seqpacket_allow:
1. seqpacket_allow is not initialized when socket is
created. Thus if features are never set, it will be
read uninitialized.
2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,
then seqpacket_allow will not be cleared appropriately
(existing apps I know about don't usually do this but
it's legal and there's no way to be sure no one relies
on this).
To fix:
- initialize seqpacket_allow after allocation
- set it unconditionally in set_features
Solution
oracle-linux-upgrade-kernel-uek
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