Improper Locking Affecting kernel-uek-devel package, versions <0:5.4.17-2136.337.5.el7uek
Threat Intelligence
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- published14 Nov 2024
- disclosed4 Sept 2024
Introduced: 4 Sep 2024
CVE-2024-44995 (opens in a new tab)How to fix?
Upgrade Oracle:7 kernel-uek-devel to version 0:5.4.17-2136.337.5.el7uek or higher.
This issue was patched in ELSA-2024-12813.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix a deadlock problem when config TC during resetting
When config TC during the reset process, may cause a deadlock, the flow is as below: pf reset start │ ▼ ...... setup tc │ │ ▼ ▼ DOWN: napi_disable() napi_disable()(skip) │ │ │ ▼ ▼ ...... ...... │ │ ▼ │ napi_enable() │ ▼ UINIT: netif_napi_del() │ ▼ ...... │ ▼ INIT: netif_napi_add() │ ▼ ...... global reset start │ │ ▼ ▼ UP: napi_enable()(skip) ...... │ │ ▼ ▼ ...... napi_disable()
In reset process, the driver will DOWN the port and then UINIT, in this case, the setup tc process will UP the port before UINIT, so cause the problem. Adds a DOWN process in UINIT to fix it.
References
- https://linux.oracle.com/cve/CVE-2024-44995.html
- https://linux.oracle.com/errata/ELSA-2024-12813.html
- https://linux.oracle.com/errata/ELSA-2024-12815.html
- https://git.kernel.org/stable/c/195918217448a6bb7f929d6a2ffffce9f1ece1cc
- https://git.kernel.org/stable/c/67492d4d105c0a6321b00c393eec96b9a7a97a16
- https://git.kernel.org/stable/c/6ae2b7d63cd056f363045eb65409143e16f23ae8
- https://git.kernel.org/stable/c/be5e816d00a506719e9dbb1a9c861c5ced30a109
- https://git.kernel.org/stable/c/de37408d5c26fc4a296a28a0c96dcb814219bfa1
- https://git.kernel.org/stable/c/fa1d4de7265c370e673583ac8d1bd17d21826cd9
- https://git.kernel.org/stable/c/fc250eca15bde34c4c8f806b9d88f55bd56a992c