cve-2024-35836
Vulnerability from cvelistv5
Published
2024-05-17 14:02
Modified
2024-12-19 08:56
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5050a5b9d8b4d3c6f7e376e07670e437db7ccf9c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/830ead5fb0c5855ce4d70ba2ed4a673b5f1e7d9b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5050a5b9d8b4d3c6f7e376e07670e437db7ccf9c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/830ead5fb0c5855ce4d70ba2ed4a673b5f1e7d9b
Impacted products
Vendor Product Version
Linux Linux Version: 9d71b54b65b1fb6c0d3a6c5c88ba9b915c783fbc
Version: 9d71b54b65b1fb6c0d3a6c5c88ba9b915c783fbc
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   Linux Linux Version: 6.7
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