Bug 2360918 (CVE-2025-40325)

Summary: CVE-2025-40325 kernel: md/raid10: wait barrier before returning discard request with REQ_NOWAIT
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
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Hardware: All   
OS: Linux   
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-04-18 08:01:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

md/raid10: wait barrier before returning discard request with REQ_NOWAIT

raid10_handle_discard should wait barrier before returning a discard bio
which has REQ_NOWAIT. And there is no need to print warning calltrace
if a discard bio has REQ_NOWAIT flag. Quality engineer usually checks
dmesg and reports error if dmesg has warning/error calltrace.
Comment 1 Avinash Hanwate 2025-04-18 14:21:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041822-CVE-2025-40325-3cc4@gregkh/T