Bug 2363313 (CVE-2025-37740)

Summary: CVE-2025-37740 kernel: jfs: add sanity check for agwidth in dbMount
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, rhel-process-autobot, vkumar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-01 14:03:20 UTC 
In the Linux kernel, the following vulnerability has been resolved:

jfs: add sanity check for agwidth in dbMount

The width in dmapctl of the AG is zero, it trigger a divide error when
calculating the control page level in dbAllocAG.

To avoid this issue, add a check for agwidth in dbAllocAG.
Comment 1 Avinash Hanwate 2025-05-02 04:28:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050133-CVE-2025-37740-bf8e@gregkh/T