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Vulnerability · Published Feb 28, 2024 · Assigned by Linux

CVE-2020-36780i2c: sprd: fix reference leak when pm_runtime_get_sync fails

Medium 4.7

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 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 86.4% 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: sprd: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in sprd_i2c_master_xfer() and sprd_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-2020-36780
Debian:13linux5.10.38-1DEBIAN-CVE-2020-36780
Debian:14linux5.10.38-1DEBIAN-CVE-2020-36780
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2020-36780
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2020-36780
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2020-36780

Affected products (as reported)

VendorProductVersions
Linux Linux 8b9ec0719834fe66146d138d62ed66cef025c864 – before 7e1764312440c5df9dfe6b436035a03673b0c1b98b9ec0719834fe66146d138d62ed66cef025c864 – before e547640cee7981fd751d2c9cde3a61bdb678b7558b9ec0719834fe66146d138d62ed66cef025c864 – before 9223505e938ba3db5907e058f4209770cff2f2a78b9ec0719834fe66146d138d62ed66cef025c864 – before d3406ab52097328a3bc4cbe124bfd8f6d51fb86f8b9ec0719834fe66146d138d62ed66cef025c864 – before 3a4f326463117cee3adcb72999ca34a9aaafda93
Linux Linux 4.14

References