In the Linux kernel, the following vulnerability has been resolved:
dpll: fix pin dump crash for rebound module
When a kernel module is unbound but the pin resources were not entirely
freed (other kernel module instance of the same PCI device have had kept
the reference to that pin), and kernel module is again bound, the pin
properties would not be updated (the properties are only assigned when
memory for the pin is allocated), prop pointer still points to the
kernel module memory of the kernel module which was deallocated on the
unbind.
If the pin dump is invoked in this state, the result is a kernel crash.
Prevent the crash by storing persistent pin properties in dpll subsystem,
copy the content from the kernel module when pin is allocated, instead of
using memory of the kernel module.
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Affected Vendors & Products
References
History
Wed, 06 Nov 2024 20:15:00 +0000
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Status: PUBLISHED
Assigner: Linux
Published: 2024-05-17T14:02:27.847Z
Updated: 2024-12-19T08:56:10.188Z
Reserved: 2024-05-17T13:50:33.103Z
Link: CVE-2024-35836

Updated: 2024-08-02T03:21:48.950Z

Status : Awaiting Analysis
Published: 2024-05-17T14:15:20.607
Modified: 2024-11-21T09:21:00.720
Link: CVE-2024-35836
