CVE-2020-36781

Summary

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

i2c: imx: fix reference leak when pm_runtime_get_sync fails

In i2c_imx_xfer() and i2c_imx_remove(), the pm reference count is not expected to be incremented on return.

However, pm_runtime_get_sync will increment pm reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3a5ee18d2a32bda6b9a1260136f6805848e3839d < 3a0cdd336d92c429b51a79bf4f64b17eafa0325daffected
LinuxLinux3a5ee18d2a32bda6b9a1260136f6805848e3839d < 1ecc0ebc2ebbad4a22a670a07d27a21fa0b59c77affected
LinuxLinux3a5ee18d2a32bda6b9a1260136f6805848e3839d < ff406f6cd09c273337ab4854292e4aca48f8affdaffected
LinuxLinux3a5ee18d2a32bda6b9a1260136f6805848e3839d < 47ff617217ca6a13194fcb35c6c3a0c57c080693affected
LinuxLinux5.7affected
LinuxLinux0 < 5.7unaffected
LinuxLinux5.10.37 <= 5.10.*unaffected
LinuxLinux5.11.21 <= 5.11.*unaffected
LinuxLinux5.12.4 <= 5.12.*unaffected
LinuxLinux5.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References