Bug 2327195 (CVE-2024-50283)

Summary: CVE-2024-50283 kernel: ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
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: 2327225    
Bug Blocks:    

Description OSIDB Bzimport 2024-11-19 02:03:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp

ksmbd_user_session_put should be called under smb3_preauth_hash_rsp().
It will avoid freeing session before calling smb3_preauth_hash_rsp().
Comment 1 Avinash Hanwate 2024-11-19 04:42:12 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024111944-CVE-2024-50283-3aad@gregkh/T