CVE-2020-36784
CVE-2020-36784 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2020-24225
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-36784?
- CVE-2020-36784 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-36784 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-36784?
- CVE-2020-36784 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-36784?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2020-36784 have an EU (EUVD) identifier?
- Yes. CVE-2020-36784 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-24225.
- When was CVE-2020-36784 published?
- CVE-2020-36784 was published on 2024-02-28 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6
- https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585
- https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1
- https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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