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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49098 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix potential crash on module unload The vmbus driver relies on the panic notifier infrastructure to perform some operations when a panic event is detected. Since vmbus can be built as module, it is required that the driver handles both registering and unregistering such panic notifier callback. After commit 74347a99e73a ("x86/Hyper-V: Unload vmbus channel in hv panic callback") though, the panic notifier registration is done unconditionally in the module initialization routine whereas the unregistering procedure is conditionally guarded and executes only if HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE capability is set. This patch fixes that by unconditionally unregistering the panic notifier in the module's exit routine as well.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2133c422a103cf7c7768c37b9ac382e73b691892 kernel.org Patch 
https://git.kernel.org/stable/c/3d0078f8bddd58d9bb1ad40bbe929f8633abb276 kernel.org Patch 
https://git.kernel.org/stable/c/5ea98d0f5f035c1bcf1517ccec0e024ae35a48b2 kernel.org Patch 
https://git.kernel.org/stable/c/6b4c0149a56147b29169e07000d566162892722a kernel.org Patch 
https://git.kernel.org/stable/c/792f232d57ff28bbd5f9c4abe0466b23d5879dc8 kernel.org Patch 
https://git.kernel.org/stable/c/cf580d2e3884dbafd6b90269b03a24d661578624 kernel.org Patch 
https://git.kernel.org/stable/c/dcd6b1a624c0ffa21034d8b1e02e9d068458f596 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49098
NVD Published Date:
02/26/2025
NVD Last Modified:
10/14/2025
Source:
kernel.org