Bug 2324591 (CVE-2024-50176)

Summary: CVE-2024-50176 kernel: remoteproc: k3-r5: Fix error handling when power-up failed
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2324688    
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Description OSIDB Bzimport 2024-11-08 13:47:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

remoteproc: k3-r5: Fix error handling when power-up failed

By simply bailing out, the driver was violating its rule and internal
assumptions that either both or no rproc should be initialized. E.g.,
this could cause the first core to be available but not the second one,
leading to crashes on its shutdown later on while trying to dereference
that second instance.
Comment 1 Robb Gatica 2024-11-08 15:29:23 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110806-CVE-2024-50176-8744@gregkh/T