Bug 2347806 (CVE-2022-49199)

Summary: CVE-2022-49199 kernel: RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()
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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Description OSIDB Bzimport 2025-02-26 03:07:24 UTC 
In the Linux kernel, the following vulnerability has been resolved:

RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()

This code checks "index" for an upper bound but it does not check for
negatives.  Change the type to unsigned to prevent underflows.
Comment 1 Avinash Hanwate 2025-02-26 13:52:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49199-54e5@gregkh/T
Comment 4 Avinash Hanwate 2025-02-28 02:06:47 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49199-54e5@gregkh/T