Vulnerability · Published Feb 28, 2024 · Assigned by Linux
CVE-2020-36782i2c: imx-lpi2c: fix reference leak when pm_runtime_get_sync fails
Medium 5.5
In plain English
A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.10.38-1 | DEBIAN-CVE-2020-36782 |
| Debian:13 | linux | 5.10.38-1 | DEBIAN-CVE-2020-36782 |
| Debian:14 | linux | 5.10.38-1 | DEBIAN-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2020-36782 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2020-36782 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 13d6eb20fc79a1e606307256dad4098375539a09 – before 815859cb1d2302e74f11bf6894bceace9ca9eb4a13d6eb20fc79a1e606307256dad4098375539a09 – before cc49d206414240483bb93ffa3d80243e6a77691613d6eb20fc79a1e606307256dad4098375539a09 – before bb300acc867e937edc2a6898e92b21f88e4e4e6613d6eb20fc79a1e606307256dad4098375539a09 – before b100650d80cd2292f6c152f5f2943b5944b3e8ce13d6eb20fc79a1e606307256dad4098375539a09 – before 278e5bbdb9a94fa063c0f9bcde2479d0b8042462 |
| Linux | Linux | 4.16 |
References
- https://git.kernel.org/stable/c/815859cb1d2302e74f11bf6894bceace9ca9eb4a
- https://git.kernel.org/stable/c/cc49d206414240483bb93ffa3d80243e6a776916
- https://git.kernel.org/stable/c/bb300acc867e937edc2a6898e92b21f88e4e4e66
- https://git.kernel.org/stable/c/b100650d80cd2292f6c152f5f2943b5944b3e8ce
- https://git.kernel.org/stable/c/278e5bbdb9a94fa063c0f9bcde2479d0b8042462