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Vulnerability · Published Dec 8, 2025 · Assigned by Linux

CVE-2023-53766FS: JFS: Check for read-only mounted filesystem in txBegin

Unrated

In plain English

A 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 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 90.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Check for read-only mounted filesystem in txBegin This patch adds a check for read-only mounted filesystem in txBegin before starting a transaction potentially saving from NULL pointer deref.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.52-1DEBIAN-CVE-2023-53766
Debian:13linux6.4.11-1DEBIAN-CVE-2023-53766
Debian:14linux6.4.11-1DEBIAN-CVE-2023-53766
Ubuntu:22.04:LTSlinux5.15.0-88.98UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-aws5.15.0-1049.54UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure5.15.0-1051.59UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1051.59.1UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gcp5.15.0-1046.54UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gke5.15.0-1046.51UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1032.38UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-ibm5.15.0-1042.45UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1045.51UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-kvm5.15.0-1046.51UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-88.98UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1040.40UBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1019.19UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1006.6UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oracle5.15.0-1047.53UBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-raspi5.15.0-1042.45UBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53766
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-53766

Affected products (as reported)

VendorProductVersions
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before a88efca805bea93cea9187dfd00835aa7093bf1b1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 97c1f26e4d4af55e8584e4646dd5c5fa7baf62c71da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 2a8807f9f511c64de0c7cc9900a1683e3d72a3e51da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 5c094ca994824e038b6a97835ded4e5d1d8085041da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 2febd5f81e4bfba61d9f374dcca628aff374cc561da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before b0ed8ed0428ee96092da6fefa5cfacbe4abed7011da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 95e2b352c03b0a86c5717ba1d24ea20969abcacc
Linux Linux 2.6.12

References