Bug 2320630 (CVE-2024-50062)

Summary: CVE-2024-50062 kernel: RDMA/rtrs-srv: Avoid null pointer deref during path establishment
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: 2320884    
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Description OSIDB Bzimport 2024-10-21 20:04:41 UTC 
In the Linux kernel, the following vulnerability has been resolved:

RDMA/rtrs-srv: Avoid null pointer deref during path establishment

For RTRS path establishment, RTRS client initiates and completes con_num
of connections. After establishing all its connections, the information
is exchanged between the client and server through the info_req message.
During this exchange, it is essential that all connections have been
established, and the state of the RTRS srv path is CONNECTED.

So add these sanity checks, to make sure we detect and abort process in
error scenarios to avoid null pointer deref.
Comment 1 Avinash Hanwate 2024-10-22 09:35:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102136-CVE-2024-50062-1ea1@gregkh/T