What’s Vulnerable › Vulnerabilities
CVE-2020-36782: i2c: imx-lpi2c: 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: imx-lpi2c: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in lpi2c_imx_master_enable. 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 4.16 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/278e5bbdb9a94fa063c0f9bcde2479d0b8042462
- https://git.kernel.org/stable/c/815859cb1d2302e74f11bf6894bceace9ca9eb4a
- https://git.kernel.org/stable/c/b100650d80cd2292f6c152f5f2943b5944b3e8ce
- https://git.kernel.org/stable/c/bb300acc867e937edc2a6898e92b21f88e4e4e66
- https://git.kernel.org/stable/c/cc49d206414240483bb93ffa3d80243e6a776916
- https://git.kernel.org/stable/c/278e5bbdb9a94fa063c0f9bcde2479d0b8042462
- https://git.kernel.org/stable/c/815859cb1d2302e74f11bf6894bceace9ca9eb4a
- https://git.kernel.org/stable/c/b100650d80cd2292f6c152f5f2943b5944b3e8ce
- https://git.kernel.org/stable/c/bb300acc867e937edc2a6898e92b21f88e4e4e66
- https://git.kernel.org/stable/c/cc49d206414240483bb93ffa3d80243e6a776916
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