Riskcovery

CVE-2020-36780

i2c: sprd: fix reference leak when pm_runtime_get_sync fails

State
Published
Severity
4.7 Medium
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: 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.

Scores

CVSSScoreVectorSource
3.14.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 8b9ec0719834fe66146d138d62ed66cef025c864 to before 7e1764312440c5df9dfe6b436035a03673b0c1b9Affected
  • 8b9ec0719834fe66146d138d62ed66cef025c864 to before e547640cee7981fd751d2c9cde3a61bdb678b755Affected
  • 8b9ec0719834fe66146d138d62ed66cef025c864 to before 9223505e938ba3db5907e058f4209770cff2f2a7Affected
  • 8b9ec0719834fe66146d138d62ed66cef025c864 to before d3406ab52097328a3bc4cbe124bfd8f6d51fb86fAffected
  • 8b9ec0719834fe66146d138d62ed66cef025c864 to before 3a4f326463117cee3adcb72999ca34a9aaafda93Affected
LinuxLinux
  • 4.14Affected
  • before 4.14Not affected
  • 5.4.119 through 5.4.*Not 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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