medium5.5
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 n…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.5 before 5.10.37 from 5.11 before 5.11.21 from 5.12 before 5.12.4 |
References
- NVD record
- CVE.org record
- 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
- 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