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Red Hat: CVE-2024-40956: kernel: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list (Multiple Advisories)

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Red Hat: CVE-2024-40956: kernel: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
07/12/2024
Created
09/07/2024
Added
09/06/2024
Modified
09/06/2024

Description

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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