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CVE-2020-36784
i2c: cadence: fix reference leak when pm_runtime_get_sync fails
Medium5.5EPSS 0.22%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a – < 30410519328c94367e561fd878e5f0d3a0303585
- affected 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a – < d57ff04e0ed6f3be1682ae861ead33f879225e07
- affected 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a – < a45fc41beed8e0fe31864619c34aa00797fb60c1
- affected 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a – < 23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6
- affected 4.5
- unaffected < 4.5
- unaffected 5.10.37 – ≤ 5.10.*
- unaffected 5.11.21 – ≤ 5.11.*
- unaffected 5.12.4 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References (4)
- https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2020-36784)Record last updated .