Bug 2298110 (CVE-2022-48774)

Summary: CVE-2022-48774 kernel: dmaengine: ptdma: Fix the error handling path in pt_core_init()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, stalexan, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 5.15.25, kernel 5.16.11, kernel 5.17 Doc Type: If docs needed, set a value
Doc Text:
A memory leak flaw was found in the Linux kernel’s AMD PTDMA controller driver. This flaw allows a local user to crash the system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2024-07-16 12:22:11 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dmaengine: ptdma: Fix the error handling path in pt_core_init()

In order to free resources correctly in the error handling path of
pt_core_init(), 2 goto's have to be switched. Otherwise, some resources
will leak and we will try to release things that have not been allocated
yet.

Also move a dev_err() to a place where it is more meaningful.