Use of Uninitialized Variable Affecting kernel-bootwrapper package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-7340424
- published 21 Jun 2024
- disclosed 19 Jun 2024
Introduced: 19 Jun 2024
CVE-2024-38593 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-bootwrapper.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
net: micrel: Fix receiving the timestamp in the frame for lan8841
The blamed commit started to use the ptp workqueue to get the second part of the timestamp. And when the port was set down, then this workqueue is stopped. But if the config option NETWORK_PHY_TIMESTAMPING is not enabled, then the ptp_clock is not initialized so then it would crash when it would try to access the delayed work. So then basically by setting up and then down the port, it would crash. The fix consists in checking if the ptp_clock is initialized and only then cancel the delayed work.
References
- https://access.redhat.com/security/cve/CVE-2024-38593
- https://git.kernel.org/stable/c/3ddf170e4a604f5d4d9459a36993f5e92b53e8b0
- https://git.kernel.org/stable/c/3fd4282d5f25c3c97fef3ef0b89b82ef4e2bc975
- https://git.kernel.org/stable/c/64a47cf634ae44e92be24ebc982410841093bd7b
- https://git.kernel.org/stable/c/aea27a92a41dae14843f92c79e9e42d8f570105c