Use After Free Affecting kernel-core package, versions <0:5.14.0-284.82.1.el9_2
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-7889349
- published 4 Sep 2024
- disclosed 12 Jul 2024
Introduced: 12 Jul 2024
CVE-2024-40956 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-284.82.1.el9_2 or higher.
This issue was patched in RHSA-2024:6267.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list
Use list_for_each_entry_safe() to allow iterating through the list and deleting the entry in the iteration process. The descriptor is freed via idxd_desc_complete() and there's a slight chance may cause issue for the list iterator when the descriptor is reused by another thread without it being deleted from the list.
References
- https://access.redhat.com/security/cve/CVE-2024-40956
- https://git.kernel.org/stable/c/1b08bf5a17c66ab7dbb628df5344da53c8e7ab33
- https://git.kernel.org/stable/c/83163667d881100a485b6c2daa30301b7f68d9b5
- https://git.kernel.org/stable/c/a14968921486793f2a956086895c3793761309dd
- https://git.kernel.org/stable/c/e3215deca4520773cd2b155bed164c12365149a7
- https://git.kernel.org/stable/c/faa35db78b058a2ab6e074ee283f69fa398c36a8