What’s Vulnerable › Vulnerabilities
CVE-2020-36783: i2c: img-scb: fix reference leak when pm_runtime_get_sync fails
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-02-28 · updated 2026-06-17
Description
In the Linux kernel, the following vulnerability has been resolved: i2c: img-scb: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in functions img_i2c_xfer and img_i2c_init. However, pm_runtime_get_sync will increment the PM reference count 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
- Linux kernel: from 4.15 before 5.4.119; from 5.5 before 5.10.37; from 5.11 before 5.11.21; from 5.12 before 5.12.4 — fixed in 5.10.37, 5.11.21, 5.12.4, 5.4.119
How to fix
Upgrade to a fixed version: Linux kernel 5.10.37, 5.11.21, 5.12.4, 5.4.119. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/223125e37af8a641ea4a09747a6a52172fc4b903
- https://git.kernel.org/stable/c/4734c4b1d9573c9d20bbc46cf37dde095ee011b8
- https://git.kernel.org/stable/c/7ee35cde1e810ad6ca589980b9ec2b7b62946a5b
- https://git.kernel.org/stable/c/96c4a03658d661666c360959aa80cdabfe2972ed
- https://git.kernel.org/stable/c/e80ae8bde41266d3b8bf012460b6593851766006
- https://git.kernel.org/stable/c/223125e37af8a641ea4a09747a6a52172fc4b903
- https://git.kernel.org/stable/c/4734c4b1d9573c9d20bbc46cf37dde095ee011b8
- https://git.kernel.org/stable/c/7ee35cde1e810ad6ca589980b9ec2b7b62946a5b
- https://git.kernel.org/stable/c/96c4a03658d661666c360959aa80cdabfe2972ed
- https://git.kernel.org/stable/c/e80ae8bde41266d3b8bf012460b6593851766006
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