Bug 2327890 (CVE-2024-53093)

Summary: CVE-2024-53093 kernel: nvme-multipath: defer partition scanning
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the NVMe multipath support in the Linux kernel. A deadlock can be triggered when an error occurs in the partition scan within the controller's scan_work context, potentially resulting in a denial of service.
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Bug Depends On: 2327902    
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Description OSIDB Bzimport 2024-11-21 19:01:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

nvme-multipath: defer partition scanning

We need to suppress the partition scan from occuring within the
controller's scan_work context. If a path error occurs here, the IO will
wait until a path becomes available or all paths are torn down, but that
action also occurs within scan_work, so it would deadlock. Defer the
partion scan to a different context that does not block scan_work.
Comment 1 Robb Gatica 2024-11-21 19:42:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024112152-CVE-2024-53093-f854@gregkh/T
Comment 3 errata-xmlrpc 2025-05-13 08:36:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966