CVE-2020-36780

Summary

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

i2c: sprd: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in sprd_i2c_master_xfer() and sprd_i2c_remove().

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
LinuxLinux8b9ec0719834fe66146d138d62ed66cef025c864 < 7e1764312440c5df9dfe6b436035a03673b0c1b9affected
LinuxLinux8b9ec0719834fe66146d138d62ed66cef025c864 < e547640cee7981fd751d2c9cde3a61bdb678b755affected
LinuxLinux8b9ec0719834fe66146d138d62ed66cef025c864 < 9223505e938ba3db5907e058f4209770cff2f2a7affected
LinuxLinux8b9ec0719834fe66146d138d62ed66cef025c864 < d3406ab52097328a3bc4cbe124bfd8f6d51fb86faffected
LinuxLinux8b9ec0719834fe66146d138d62ed66cef025c864 < 3a4f326463117cee3adcb72999ca34a9aaafda93affected
LinuxLinux4.14affected
LinuxLinux0 < 4.14unaffected
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

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References