Riskcovery

CVE-2020-36779

i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails

State
Published
Severity
Not scored
Published
Feb 28, 2024
Updated
May 11, 2026
Reserved
Feb 26, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ea6dd25deeb5b797a145be7f860e3085e7d104c3 to before c323b270a52a26aa8038a4d1fd9a850904a41166Affected
  • ea6dd25deeb5b797a145be7f860e3085e7d104c3 to before d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4Affected
  • ea6dd25deeb5b797a145be7f860e3085e7d104c3 to before c7ea772c9fcf711ed566814b92eecaffc0e2bfd0Affected
  • ea6dd25deeb5b797a145be7f860e3085e7d104c3 to before 2c662660ce2bd3b09dae21a9a9ac9395e1e6c00bAffected
LinuxLinux
  • 5.6Affected
  • before 5.6Not affected
  • 5.10.37 through 5.10.*Not affected
  • 5.11.21 through 5.11.*Not affected
  • 5.12.4 through 5.12.*Not affected
  • 5.13 and laterNot affected

References

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