CVE-2021-46919

Summary

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

dmaengine: idxd: fix wq size store permission state

WQ size can only be changed when the device is disabled. Current code allows change when device is enabled but wq is disabled. Change the check to detect device state.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc52ca478233c172b2d322b5241d6279a8661cbba < 4ecf25595273203010bc8318c4aee60ad64037aeaffected
LinuxLinuxc52ca478233c172b2d322b5241d6279a8661cbba < 05b7791c4c4aa8304368fdc55ae911f6b34e7281affected
LinuxLinuxc52ca478233c172b2d322b5241d6279a8661cbba < 0fff71c5a311e1264988179f7dcc217fda15faddaffected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.10.32 <= 5.10.*unaffected
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