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Vulnerability · Published Sep 15, 2025 · Assigned by Linux

CVE-2023-53230smb: client: fix warning in cifs_smb3_do_mount()

Medium 5.5

In plain English

A medium-severity memory leak 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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 94.9% 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: smb: client: fix warning in cifs_smb3_do_mount() This fixes the following warning reported by kernel test robot fs/smb/client/cifsfs.c:982 cifs_smb3_do_mount() warn: possible memory leak of 'cifs_sb'

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-abi-stablelists4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-core4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-cross-headers4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-debug4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-debug-core4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-debug-devel4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-debug-modules4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-devel4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-doc4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-headers4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-modules4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-modules-extra4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-rt4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-core4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-debug4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-debug-core4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-devel4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-modules4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.58.1.rt7.399.el8_10ALSA-2025:9581
AlmaLinux:8kernel-tools4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-tools-libs4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-zfcpdump4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8perf4.18.0-553.58.1.el8_10ALSA-2025:9580
AlmaLinux:8python3-perf4.18.0-553.58.1.el8_10ALSA-2025:9580
Debian:12linux6.1.52-1DEBIAN-CVE-2023-53230
Debian:13linux6.4.13-1DEBIAN-CVE-2023-53230
Debian:14linux6.4.13-1DEBIAN-CVE-2023-53230
Ubuntu:22.04:LTSlinux5.15.0-91.101UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-aws5.15.0-1051.56UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure5.15.0-1051.59UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1051.59.1UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gcp5.15.0-1048.56UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gke5.15.0-1048.53UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1034.40UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-ibm5.15.0-1044.47UBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1046.52UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-kvm5.15.0-1048.53UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-91.101UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1042.42UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1020.20UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1007.7UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oracle5.15.0-1049.55UBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-raspi5.15.0-1044.47UBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53230
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53230
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1027.31UBUNTU-CVE-2023-53230

Affected products (as reported)

VendorProductVersions
Linux Linux ce0008a0e410cdd95f0d8cd81b2902ec10a660c4 – before 9850867042674361f455ea8901375cff5b800be58378a51e3f8140f60901fb27208cc7a6e47047b5 – before 945f4a7aff84fde1f825d17a5050880345da32288378a51e3f8140f60901fb27208cc7a6e47047b5 – before eb79f8dfba343667f9a82a252743f4e8f67ce4208378a51e3f8140f60901fb27208cc7a6e47047b5 – before 12c30f33cc6769bf411088a2872843c4f9ea32f99a167fc440e5693c1cdd7f07071e05658bd9d89dee71f8f1cd3c8c4a251fd3e8abc89215ae3457cb5.15.46 – before 5.15.1285.17.14 – before 5.18
Linux Linux 5.19

Weakness: CWE-401 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References