CVE-2020-36779

i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails

Description

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166	patch
https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4	patch
https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0	patch
https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b	patch

Frequently Asked Questions

What is the severity of CVE-2020-36779?: CVE-2020-36779 has been scored as a medium severity vulnerability.
How to fix CVE-2020-36779?: To fix CVE-2020-36779, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-36779 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-36779 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-36779?: CVE-2020-36779 affects Linux Linux, Linux Linux.

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