Bug 2312074 (CVE-2024-46686)

Summary: CVE-2024-46686 kernel: smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2312204    
Bug Blocks:    

Description OSIDB Bzimport 2024-09-13 06:21:06 UTC 
In the Linux kernel, the following vulnerability has been resolved:

smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()

This happens when called from SMB2_read() while using rdma
and reaching the rdma_readwrite_threshold.
Comment 1 Michal Findra 2024-09-13 14:26:26 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091338-CVE-2024-46686-5b18@gregkh/T