CVE-2025-68371: scsi: smartpqi: Fix device resources accessed after device removal
In the Linux kernel, the following vulnerability has been resolved:
scsi: smartpqi: Fix device resources accessed after device removal
Correct possible race conditions during device removal.
Previously, a scheduled work item to reset a LUN could still execute
after the device was removed, leading to use-after-free and other
resource access issues.
This race condition occurs because the abort handler may schedule a LUN
reset concurrently with device removal via sdev_destroy(), leading to
use-after-free and improper access to freed resources.
- Check in the device reset handler if the device is still present in
the controller's SCSI device list before running; if not, the reset
is skipped.
- Cancel any pending TMF work that has not started in sdev_destroy().
- Ensure device freeing in sdev_destroy() is done while holding the
LUN reset mutex to avoid races with ongoing resets.
Security readout for executives and security teams
Plain-English summary
CVE-2025-68371 is a Linux kernel race condition in the smartpqi SCSI driver. During device removal, delayed reset work could still touch resources that had already been freed. The likely business impact is instability or crash risk on affected systems using this storage path, but the provided sources do not give CVSS, confirmed exploitation, or a complete product impact list.
Executive priority
Treat this as a targeted kernel maintenance issue rather than an internet-wide emergency based on current evidence. Prioritize storage-heavy Linux servers and vendor appliances, especially where uptime matters and kernel updates are already due.
Technical view
The flaw is a use-after-free/resource access race in smartpqi LUN reset handling. An abort handler could schedule reset work while sdev_destroy() removes the device. The fix checks whether the SCSI device remains present, cancels pending TMF work during destruction, and protects freeing with the LUN reset mutex.
Likely exposure
Exposure appears limited to Linux systems running affected kernel versions with the smartpqi driver in use. The source bundle lists Linux kernel versions and stable kernel commits but does not provide distribution-specific package names or a complete downstream product matrix.
Exploitation context
The CVE is not listed as KEV in the supplied data. The sources describe a race during device removal and reset handling, but do not state public exploitation, exploit availability, or remote attack conditions.
Researcher notes
The source bundle supports a race/use-after-free conclusion but lacks CVSS, CWE, exploitability detail, and distribution package mapping. Analysis should stay anchored to smartpqi device removal and reset concurrency until vendor advisories add clearer scope.
Mitigation direction
Apply supported Linux kernel or distribution updates that include the referenced stable fixes.
Check vendor guidance for appliances or products embedding Linux, including the Siemens advisory.
Prioritize systems where the smartpqi driver is loaded and storage devices are actively managed.
Use normal change controls for kernel updates on storage-dependent production systems.
Validation and detection
Inventory Linux hosts for affected kernel versions and smartpqi driver usage.
Confirm updated kernels include one of the referenced stable fix commits or a vendor backport.
Review vendor advisories for downstream product-specific affected versions and fixed releases.
Monitor storage and kernel logs for device removal, reset, or smartpqi-related instability.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2025-68371 mapping review
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These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
0CVSS vectors
3Timeline events
1ADP providers
8Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
Dec 24, 2025, 10:33 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.