Bug 2307555 (CVE-2024-43883)

Summary: CVE-2024-43883 kernel: usb: vhci-hcd: Do not drop references before new references are gained
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: 2308099    
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Description OSIDB Bzimport 2024-08-23 13:20:40 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: vhci-hcd: Do not drop references before new references are gained

At a few places the driver carries stale pointers
to references that can still be used. Make sure that does not happen.
This strictly speaking closes ZDI-CAN-22273, though there may be
similar races in the driver.
Comment 1 Mauro Matteo Cascella 2024-08-27 09:46:01 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024082313-CVE-2024-43883-a594@gregkh/T