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Fencer Vulns
medium 5.5

CVE-2023-53230 json

smb: client: fix warning in cifs_smb3_do_mount()

published 2025-09-15 13 mo ago modified 2026-06-17 4 mo ago also EUVD-2023-59854

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

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'

Patch / fix

  • Linux Linux 5.15.128, 5.18, 5.19, 6.1.47, 6.4.12, 6.5
  • linux Debian 12 6.1.52-1
  • linux Debian 14, Debian 13 6.4.13-1

debian advisories DEBIAN-CVE-2023-53230

  • linux Ubuntu 22.04 LTS 5.15.0-91.101
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1051.56
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1048.56
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1048.53
  • linux-ibm Ubuntu 22.04 LTS 5.15.0-1044.47
  • linux-kvm Ubuntu 22.04 LTS 5.15.0-1048.53
  • linux-azure Ubuntu 22.04 LTS 5.15.0-1051.59
  • linux-gkeop Ubuntu 22.04 LTS 5.15.0-1034.40

ubuntu advisories UBUNTU-CVE-2023-53230

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-rt RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.58.1.rt7.399.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.58.1.rt7.399.el8_10

red hat advisories RHSA-2025:9581RHSA-2025:9580RHSA-2024:9315

  • kernel-rt Real Time Module 15 SP7 6.4.0-150700.7.22.1
  • kernel-syms-rt Real Time Module 15 SP7 6.4.0-150700.7.22.1
  • kernel-source-rt Real Time Module 15 SP7 6.4.0-150700.7.22.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.18.1
  • kernel-syms-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.18.1
  • kernel-source-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.18.1
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.22.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.22.1

suse advisories SUSE-SU-2025:4141-1SUSE-SU-2025:4132-1SUSE-SU-2025:4057-1SUSE-SU-2025:20870-1SUSE-SU-2025:3761-1SUSE-SU-2025:20898-1

  • kernel AlmaLinux 8 4.18.0-553.58.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.58.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.58.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.58.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.58.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.58.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.58.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.58.1.el8_10

almalinux advisories ALSA-2025:9580ALSA-2025:9581

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-53230 updated cvss 3.3

kernel: Kernel: Denial of Service via memory leak in SMB client

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-s390x 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-x86_64 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-aarch64 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-ppc64le 5.14.0-503.11.1.el9_5 Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-503.11.1.el9_5, perf 5.14.0-503.11.1.el9_5, rtla 5.14.0-503.11.1.el9_5, kernel-devel-matched 5.14.0-503.11.1.el9_5, kernel-64k-devel-matched 5.14.0-503.11.1.el9_5, kernel-debug-devel-matched 5.14.0-503.11.1.el9_5, +6 more
    fixed: vendor fix RHSA-2024:9315
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.58.1.el8_10, kernel 4.18.0-553.58.1.el8_10, bpftool 4.18.0-553.58.1.el8_10, kernel-core 4.18.0-553.58.1.el8_10, kernel-tools 4.18.0-553.58.1.el8_10, python3-perf 4.18.0-553.58.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:9580
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.4.0-503.11.1.el9_5, kernel 5.14.0-503.11.1.el9_5, kernel-64k 5.14.0-503.11.1.el9_5, kernel-core 5.14.0-503.11.1.el9_5, kernel-tools 5.14.0-503.11.1.el9_5, python3-perf 5.14.0-503.11.1.el9_5, +29 more
    fixed: vendor fix RHSA-2024:9315
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.58.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.58.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.58.1.el8_10
    fixed: vendor fix RHSA-2025:9580
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-kvm 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-core 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-modules 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-debug-kvm 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-debug-core 4.18.0-553.58.1.rt7.399.el8_10, +4 more
    fixed: vendor fix RHSA-2025:9581
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-503.11.1.el9_5, kernel-rt-core 5.14.0-503.11.1.el9_5, kernel-rt-modules 5.14.0-503.11.1.el9_5, kernel-rt-debug-core 5.14.0-503.11.1.el9_5, kernel-rt-modules-core 5.14.0-503.11.1.el9_5, kernel-rt-debug-modules 5.14.0-503.11.1.el9_5, +4 more Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-503.11.1.el9_5, kernel-rt-kvm 5.14.0-503.11.1.el9_5, kernel-rt-core 5.14.0-503.11.1.el9_5, kernel-rt-modules 5.14.0-503.11.1.el9_5, kernel-rt-debug-kvm 5.14.0-503.11.1.el9_5, kernel-rt-debug-core 5.14.0-503.11.1.el9_5, +6 more
    fixed: vendor fix RHSA-2024:9315
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-core 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-modules 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-debug-core 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-debug-modules 4.18.0-553.58.1.rt7.399.el8_10, kernel-rt-modules-extra 4.18.0-553.58.1.rt7.399.el8_10, +2 more
    fixed: vendor fix RHSA-2025:9581
show 1 more
  • Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers 5.14.0-503.11.1.el9_5 Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 10 kernel Red Hat Enterprise Linux AppStream (v. 9) kernel-headers 5.14.0-503.11.1.el9_5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.