CVE-2021-47184

Summary

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

i40e: Fix NULL ptr dereference on VSI filter sync

Remove the reason of null pointer dereference in sync VSI filters. Added new I40E_VSI_RELEASING flag to signalize deleting and releasing of VSI resources to sync this thread with sync filters subtask. Without this patch it is possible to start update the VSI filter list after VSI is removed, that's causing a kernel oops.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < 78f2a9e831f9610e3655a0be5e675e1aa2472089affected
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < 87c421ab4a43433cb009fea44bbbc77f46913e1daffected
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < c30162da91327e4cdf7cd03079f096bb3654738caffected
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < f866513ead4370402428ef724b03c3312295c178affected
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < e91e8427a1e1633a0261e3bb0201c836ac5b3890affected
LinuxLinux41c445ff0f482bb6e6b72dcee9e598e20575f743 < 37d9e304acd903a445df8208b8a13d707902dea6affected
LinuxLinux3.12affected
LinuxLinux0 < 3.12unaffected
LinuxLinux4.14.256 <= 4.14.*unaffected
LinuxLinux4.19.218 <= 4.19.*unaffected
LinuxLinux5.4.162 <= 5.4.*unaffected
LinuxLinux5.10.82 <= 5.10.*unaffected
LinuxLinux5.15.5 <= 5.15.*unaffected
LinuxLinux5.16 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References