Vulnerability · Published Feb 22, 2024 · Assigned by Linux

CVE-2023-52448gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump

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

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 84.3% 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: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9bpftool7.3.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-abi-stablelists4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-abi-stablelists5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-cross-headers4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-cross-headers5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-uki-virt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-doc4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-doc5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-headers4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-headers5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-core4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-core4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-devel4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-kvm4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:8kernel-rt-modules4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-rt-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools-libs4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools-libs5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools-libs-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-uki-virt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9libperf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8perf4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9perf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8python3-perf4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9python3-perf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9rtla5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9rv5.14.0-427.13.1.el9_4ALSA-2024:2394
Debian:12linux6.1.76-1DEBIAN-CVE-2023-52448
Debian:13linux6.6.15-1DEBIAN-CVE-2023-52448
Debian:14linux6.6.15-1DEBIAN-CVE-2023-52448
Rocky Linux:8kernel0:4.18.0-553.el8_10RLSA-2024:3138
Rocky Linux:8kernel-rt0:4.18.0-553.rt7.342.el8_10RLSA-2024:2950
Ubuntu:22.04:LTSlinux5.15.0-102.112UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63USN-6725-2
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69USN-6725-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1USN-6819-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1USN-6725-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63USN-6725-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1USN-6818-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46USN-6725-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2USN-6818-4
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58USN-6725-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1USN-6818-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48USN-6725-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22USN-6818-3
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1035.35UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1035.35USN-6688-1
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25USN-6819-3
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61USN-6725-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1USN-6819-4
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-40.40.1~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1USN-6819-1
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1UBUNTU-CVE-2023-52448
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-52448

Affected products (as reported)

VendorProductVersions
Linux Linux 72244b6bc752b5c496f09de9a13c18adc314a53c – before efc8ef87ab9185a23d5676f2f7d986022d91bcde72244b6bc752b5c496f09de9a13c18adc314a53c – before 5c28478af371a1c3fdb570ca67f110e1ae60fc3772244b6bc752b5c496f09de9a13c18adc314a53c – before ee0586d73cbaf0e7058bc640d62a9daf2dfa917872244b6bc752b5c496f09de9a13c18adc314a53c – before d69d7804cf9e2ba171a27e5f98bc266f13d0414a72244b6bc752b5c496f09de9a13c18adc314a53c – before 067a7c48c2c70f05f9460d6f0e8423e234729f0572244b6bc752b5c496f09de9a13c18adc314a53c – before c323efd620c741168c8e0cc6fc0be04ab57e331a72244b6bc752b5c496f09de9a13c18adc314a53c – before 8877243beafa7c6bfc42022cbfdf9e39b25bd4fa
Linux Linux 4.20

References