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Vulnerability · Published Mar 2, 2024 · Assigned by Linux

CVE-2023-52520platform/x86: think-lmi: Fix reference leak

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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 84.7% 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: platform/x86: think-lmi: Fix reference leak If a duplicate attribute is found using kset_find_obj(), a reference to that attribute is returned which needs to be disposed accordingly using kobject_put(). Move the setting name validation into a separate function to allow for this change without having to duplicate the cleanup code for this setting. As a side note, a very similar bug was fixed in commit 7295a996fdab ("platform/x86: dell-sysman: Fix reference leak"), so it seems that the bug was copied from that driver. Compile-tested only.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-abi-stablelists4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-core4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-cross-headers4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-debug4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-debug-core4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-debug-devel4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-debug-modules4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-devel4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-doc4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-headers4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-modules4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-modules-extra4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-rt4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-core4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug-core4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-devel4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-kvm4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-modules4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.5.1.rt7.346.el8_10ALSA-2024:3627
AlmaLinux:8kernel-tools4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-tools-libs4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-zfcpdump4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8perf4.18.0-553.5.1.el8_10ALSA-2024:3618
AlmaLinux:8python3-perf4.18.0-553.5.1.el8_10ALSA-2024:3618
Debian:12linux6.1.64-1DEBIAN-CVE-2023-52520
Debian:13linux6.5.8-1DEBIAN-CVE-2023-52520
Debian:14linux6.5.8-1DEBIAN-CVE-2023-52520
Rocky Linux:8kernel0:4.18.0-553.5.1.el8_10RLSA-2024:3618
Rocky Linux:8kernel-rt0:4.18.0-553.5.1.rt7.346.el8_10RLSA-2024:3627
Ubuntu:22.04:LTSlinux5.15.0-94.104UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-aws5.15.0-1053.58UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure5.15.0-1056.64UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1056.64.1UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gcp5.15.0-1051.59UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1013.13~22.04.1UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gke5.15.0-1050.55UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1036.42UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-17.17~22.04.1UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-ibm5.15.0-1046.49UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1047.53UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-kvm5.15.0-1050.55UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-94.104UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-17.17.1.1.1~22.04.1UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1044.44UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1022.22UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1009.9UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1014.15UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oracle5.15.0-1051.57UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1015.15~22.04.1UBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-raspi5.15.0-1046.49UBUNTU-CVE-2023-52520
Ubuntu:24.04:LTSlinux-raspi6.7.0-1001.1UBUNTU-CVE-2023-52520
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52520
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1027.31UBUNTU-CVE-2023-52520

Affected products (as reported)

VendorProductVersions
Linux Linux 1bcad8e510b27ad843315ab2c27ccf459e3acded – before 124cf0ea4b82e1444ec8c7420af4e7db5558c2931bcad8e510b27ad843315ab2c27ccf459e3acded – before af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec41bcad8e510b27ad843315ab2c27ccf459e3acded – before c6e3023579de8d33256771ac0745239029e811061bcad8e510b27ad843315ab2c27ccf459e3acded – before 528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81
Linux Linux 5.14

References