Vulnerability · Published May 17, 2024 · Assigned by Linux

CVE-2023-52679of: Fix double free in of_parse_phandle_with_args_map

High 7.8

In plain English

A high-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 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 83.8% 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: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop. Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur". Extend the unittest to detect the double free and add an additional test case that actually triggers this path.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-abi-stablelists4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-cross-headers4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-doc4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-headers4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-rt4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-core4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-core4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-devel4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-kvm4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-modules4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-tools4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-tools-libs4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8perf4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8python3-perf4.18.0-553.16.1.el8_10ALSA-2024:5101
Debian:12linux6.1.76-1DEBIAN-CVE-2023-52679
Debian:13linux6.6.15-1DEBIAN-CVE-2023-52679
Debian:14linux6.6.15-1DEBIAN-CVE-2023-52679
Rocky Linux:8kernel0:4.18.0-553.16.1.el8_10.cloud.0.1RXSA-2024:5101
Rocky Linux:8kernel0:4.18.0-553.16.1.el8_10RLSA-2024:5101
Rocky Linux:8kernel-rt0:4.18.0-553.16.1.rt7.357.el8_10RLSA-2024:5102
Ubuntu:22.04:LTSlinux5.15.0-102.112UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-40.40.1~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1UBUNTU-CVE-2023-52679
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-52679

Affected products (as reported)

VendorProductVersions
Linux Linux bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before 26b4d702c44f9e5cf3c5c001ae619a4a001889dbbd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before a0a061151a6200c13149dbcdb6c065203c8425d2bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before d5f490343c77e6708b6c4aa7dbbfbcbb9546adeabd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before 4541004084527ce9e95a818ebbc4e6b293ffca21bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before b9d760dae5b10e73369b769073525acd7b3be2bdbd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before cafa992134124e785609a406da4ff2b54052aff7bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – before 4dde83569832f9377362e50f7748463340c5db6b
Linux Linux 4.17

References