CVE-2021-46918

Summary

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: clear MSIX permission entry on shutdown

Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid entries still programmed at device shutdown.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8e50d392652f20616a136165dff516b86baf5e49 < c84b8982d7aa9b4717dc36a1c6cbc93ee153b500affected
LinuxLinux8e50d392652f20616a136165dff516b86baf5e49 < 6df0e6c57dfc064af330071f372f11aa8c584997affected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux5.11.16 <= 5.11.*unaffected
LinuxLinux5.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References