CVE-2021-47051

Summary

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

spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()

pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux944c01a889d97dc08e1b71f4ed868f4023fd6034 < 4a01ad002d2e03c399af536562693752af7c81b1affected
LinuxLinux944c01a889d97dc08e1b71f4ed868f4023fd6034 < ce02e58ddf8658a4c3bed2296f32a5873b3f7cceaffected
LinuxLinux944c01a889d97dc08e1b71f4ed868f4023fd6034 < b8207bfc539cd07d15e753ff2d179c5b61c673b1affected
LinuxLinux944c01a889d97dc08e1b71f4ed868f4023fd6034 < 6a2b5cee0d31ab6cc51030c441135b0e31217282affected
LinuxLinux944c01a889d97dc08e1b71f4ed868f4023fd6034 < a03675497970a93fcf25d81d9d92a59c2d7377a7affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.4.119 <= 5.4.*unaffected
LinuxLinux5.10.37 <= 5.10.*unaffected
LinuxLinux5.11.21 <= 5.11.*unaffected
LinuxLinux5.12.4 <= 5.12.*unaffected
LinuxLinux5.13 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References