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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2023-52760gfs2: Fix slab-use-after-free in gfs2_qd_dealloc

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 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 82.3% 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vulnerability has been resolved: gfs2: Fix slab-use-after-free in gfs2_qd_dealloc In gfs2_put_super(), whether withdrawn or not, the quota should be cleaned up by gfs2_quota_cleanup(). Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu callback) has run for all gfs2_quota_data objects, resulting in use-after-free. Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called by gfs2_make_fs_ro(), so in gfs2_put_super(), after calling gfs2_make_fs_ro(), there is no need to call them again.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.6.8-1DEBIAN-CVE-2023-52760
Debian:14linux6.6.8-1DEBIAN-CVE-2023-52760
Ubuntu:22.04:LTSlinux5.15.0-119.129UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux5.15.0-119.129USN-6974-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-aws5.15.0-1068.74USN-6974-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1068.74UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure5.15.0-1071.80UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure5.15.0-1071.80USN-6974-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1071.80.1USN-6974-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1071.80.1UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gcp5.15.0-1067.75UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gcp5.15.0-1067.75USN-6974-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gke5.15.0-1065.71USN-6974-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1065.71UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1051.58USN-6974-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1051.58UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-ibm5.15.0-1061.64UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-ibm5.15.0-1061.64USN-6974-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1063.69UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1063.69USN-6974-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1065.70USN-6974-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1065.70UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-119.129USN-6974-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-119.129UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1063.64USN-6974-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1063.64UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1028.28UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1016.16UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oracle5.15.0-1066.72UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-oracle5.15.0-1066.72USN-6974-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-raspi5.15.0-1061.64UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-raspi5.15.0-1061.64USN-6974-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2023-52760
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39USN-7019-1

Affected products (as reported)

VendorProductVersions
Linux Linux f66af88e33212b57ea86da2c5d66c0d9d5c46344 – before 08a28272faa750d4357ea2cb48d2baefd778ea81f66af88e33212b57ea86da2c5d66c0d9d5c46344 – before bdcb8aa434c6d36b5c215d02a9ef07551be25a37
Linux Linux 6.6

References