CVE-2020-36779

Summary

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

i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in these stm32f7_i2c_xx serious functions.

However, pm_runtime_get_sync will increment the 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
LinuxLinuxea6dd25deeb5b797a145be7f860e3085e7d104c3 < c323b270a52a26aa8038a4d1fd9a850904a41166affected
LinuxLinuxea6dd25deeb5b797a145be7f860e3085e7d104c3 < d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4affected
LinuxLinuxea6dd25deeb5b797a145be7f860e3085e7d104c3 < c7ea772c9fcf711ed566814b92eecaffc0e2bfd0affected
LinuxLinuxea6dd25deeb5b797a145be7f860e3085e7d104c3 < 2c662660ce2bd3b09dae21a9a9ac9395e1e6c00baffected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
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