In the Linux kernel, the following vulnerability has been resolved:
fpga: region: add owner module and take its refcount
The current implementation of the fpga region assumes that the low-level
module registers a driver for the parent device and uses its owner pointer
to take the module's refcount. This approach is problematic since it can
lead to a null pointer dereference while attempting to get the region
during programming if the parent device does not have a driver.
To address this problem, add a module owner pointer to the fpga_region
struct and use it to take the module's refcount. Modify the functions for
registering a region to take an additional owner module parameter and
rename them to avoid conflicts. Use the old function names for helper
macros that automatically set the module that registers the region as the
owner. This ensures compatibility with existing low-level control modules
and reduces the chances of registering a region without setting the owner.
Also, update the documentation to keep it consistent with the new interface
for registering an fpga region.
Metrics
Affected Vendors & Products
References
History
Thu, 12 Sep 2024 08:30:00 +0000
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Wed, 11 Sep 2024 13:30:00 +0000
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-06-24T13:56:50.704Z
Updated: 2024-11-05T09:22:16.737Z
Reserved: 2024-06-24T13:54:11.059Z
Link: CVE-2024-35247
Vulnrichment
Updated: 2024-08-02T03:07:46.972Z
NVD
Status : Awaiting Analysis
Published: 2024-06-24T14:15:12.050
Modified: 2024-11-21T09:20:00.830
Link: CVE-2024-35247
Redhat