CVEvulnerability
CVE-2020-36784
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-02-28
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Affected configurations
• linux linux kernel (>= 4.5 < 5.10.37)
• linux linux kernel (>= 5.11 < 5.11.21)
• linux linux kernel (>= 5.12 < 5.12.4)
References
- https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 Patch
- https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 Patch
- https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 Patch
- https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 Patch
- https://git.kernel.org/stable/c/23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6 Patch
- https://git.kernel.org/stable/c/30410519328c94367e561fd878e5f0d3a0303585 Patch
- https://git.kernel.org/stable/c/a45fc41beed8e0fe31864619c34aa00797fb60c1 Patch
- https://git.kernel.org/stable/c/d57ff04e0ed6f3be1682ae861ead33f879225e07 Patch