Log in Start free

Vulnerability · Published Feb 28, 2024 · Assigned by Linux

CVE-2020-36784i2c: cadence: 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.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 86.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.10.38-1DEBIAN-CVE-2020-36784
Debian:13linux5.10.38-1DEBIAN-CVE-2020-36784
Debian:14linux5.10.38-1DEBIAN-CVE-2020-36784
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2020-36784
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2020-36784
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2020-36784

Affected products (as reported)

VendorProductVersions
Linux Linux 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a – before 30410519328c94367e561fd878e5f0d3a03035857fa32329ca03148fb2c07b4ef3247b8fc0488d6a – before d57ff04e0ed6f3be1682ae861ead33f879225e077fa32329ca03148fb2c07b4ef3247b8fc0488d6a – before a45fc41beed8e0fe31864619c34aa00797fb60c17fa32329ca03148fb2c07b4ef3247b8fc0488d6a – before 23ceb8462dc6f4b4decdb5536a7e5fc477cdf0b6
Linux Linux 4.5

References