Bug 2355535 (CVE-2022-49742)

Summary: CVE-2022-49742 kernel: f2fs: initialize locks earlier in f2fs_fill_super()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
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:

Description OSIDB Bzimport 2025-03-27 17:05:56 UTC 
In the Linux kernel, the following vulnerability has been resolved:

f2fs: initialize locks earlier in f2fs_fill_super()

syzbot is reporting lockdep warning at f2fs_handle_error() [1], for
spin_lock(&sbi->error_lock) is called before spin_lock_init() is called.
For safe locking in error handling, move initialization of locks (and
obvious structures) in f2fs_fill_super() to immediately after memory
allocation.
Comment 1 Robb Gatica 2025-03-27 18:47:28 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025032757-CVE-2022-49742-e3d5@gregkh/T
Comment 3 Avinash Hanwate 2025-03-28 04:09:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025032757-CVE-2022-49742-e3d5@gregkh/T