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CVE-2023-53230

smb: client: fix warning in cifs_smb3_do_mount()

MEDIUM
5.5
CVSS Score
Published: September 15, 2025 at 02:22 PM UTC
Updated: June 17, 2026 at 06:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v ≥ 5.17.14v ≥ 5.18.3v < 5.15.1285.15.46 ≤ v < 5.15.1285.16 ≤ v < 6.1.475.17.14 ≤ v < 5.185.18.3 ≤ v < 5.195.19 ≤ v < 6.1.475.19 ≤ v < 6.4.125.19 ≤ v < 6.56.2 ≤ v < 6.4.125.15.465.17.145.18.35.198378a51e3f8140f60901fb27208cc7a6e47047b59a167fc440e5693c1cdd7f07071e05658bd9d89dce0008a0e410cdd95f0d8cd81b2902ec10a660c4ee71f8f1cd3c8c4a251fd3e8abc89215ae3457cb
Vendor states this is fixed in 12c30f33cc6769bf411088a2872843c4f9ea32f9 (fixed)
Vendor states this is fixed in 945f4a7aff84fde1f825d17a5050880345da3228 (fixed)
Vendor states this is fixed in 9850867042674361f455ea8901375cff5b800be5 (fixed)
Vendor states this is fixed in eb79f8dfba343667f9a82a252743f4e8f67ce420 (fixed)
Vendor states this is fixed in 5.15.128 (unaffected)
Affected range stops below 5.18, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 6.1.47 (unaffected)
Vendor states this is fixed in 6.4.12 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/12c30f33cc6769bf411088a2872843c4f9ea32f9
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/945f4a7aff84fde1f825d17a5050880345da3228
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9850867042674361f455ea8901375cff5b800be5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/eb79f8dfba343667f9a82a252743f4e8f67ce420

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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