Vulnerability Details : CVE-2020-36784
In the Linux kernel, the following vulnerability has been resolved:
i2c: cadence: fix reference leak when pm_runtime_get_sync fails
The PM reference count is not expected to be incremented on
return in functions cdns_i2c_master_xfer and cdns_reg_slave.
However, pm_runtime_get_sync will increment pm usage counter
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.
Products affected by CVE-2020-36784
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-36784
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-36784
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2024-12-06 |
References for CVE-2020-36784
-
https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07
i2c: cadence: fix reference leak when pm_runtime_get_sync fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6
i2c: cadence: fix reference leak when pm_runtime_get_sync fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585
i2c: cadence: fix reference leak when pm_runtime_get_sync fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1
i2c: cadence: fix reference leak when pm_runtime_get_sync fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
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