cve-2024-37021
Vulnerability from cvelistv5
Published
2024-06-24 13:56
Modified
2024-11-05 09:29
Severity ?
EPSS score ?
Summary
fpga: manager: add owner module and take its refcount
References
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: manager: add owner module and take its refcount\n\nThe current implementation of the fpga manager assumes that the low-level\nmodule registers a driver for the parent device and uses its owner pointer\nto take the module\u0027s refcount. This approach is problematic since it can\nlead to a null pointer dereference while attempting to get the manager if\nthe parent device does not have a driver.\n\nTo address this problem, add a module owner pointer to the fpga_manager\nstruct and use it to take the module\u0027s refcount. Modify the functions for\nregistering the manager to take an additional owner module parameter and\nrename them to avoid conflicts. Use the old function names for helper\nmacros that automatically set the module that registers the manager as the\nowner. This ensures compatibility with existing low-level control modules\nand reduces the chances of registering a manager without setting the owner.\n\nAlso, update the documentation to keep it consistent with the new interface\nfor registering an fpga manager.\n\nOther changes: opportunistically move put_device() from __fpga_mgr_get() to\nfpga_mgr_get() and of_fpga_mgr_get() to improve code clarity since the\nmanager device is taken in these functions."
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"datePublished": "2024-06-24T13:56:52.091Z",
"dateReserved": "2024-06-24T13:54:11.044Z",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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