Log in Start free

Vulnerability · Published Feb 28, 2024 · Assigned by Linux

CVE-2020-36778i2c: xiic: 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: xiic: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in xiic_xfer and xiic_i2c_remove. 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

EcosystemPackageFixed inAdvisory
Debian:12linux5.10.38-1DEBIAN-CVE-2020-36778
Debian:13linux5.10.38-1DEBIAN-CVE-2020-36778
Debian:14linux5.10.38-1DEBIAN-CVE-2020-36778
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2020-36778
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2020-36778

Affected products (as reported)

VendorProductVersions
Linux Linux 10b17004a74c384c6f410af355b0d6d7a168f613 – before c977426db644ba476938125597947979e8aba72510b17004a74c384c6f410af355b0d6d7a168f613 – before e2ba996577eaea423694dc69ae43d56f1410a22b10b17004a74c384c6f410af355b0d6d7a168f613 – before a42ac16e6573f19c78f556ea292f5b534fcc451410b17004a74c384c6f410af355b0d6d7a168f613 – before a85c5c7a3aa8041777ff691400b4046e56149fd3
Linux Linux 5.6

References