What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-06-17
• Weakness: CWE-401

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 products

• Linux kernel: before 5.15.128; from 5.16 before 6.1.47; from 6.2 before 6.4.12 — fixed in 5.15.128, 6.1.47, 6.4.12

How to fix

Upgrade to a fixed version: Linux kernel 5.15.128, 6.1.47, 6.4.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/12c30f33cc6769bf411088a2872843c4f9ea32f9
• https://git.kernel.org/stable/c/945f4a7aff84fde1f825d17a5050880345da3228
• https://git.kernel.org/stable/c/9850867042674361f455ea8901375cff5b800be5
• https://git.kernel.org/stable/c/eb79f8dfba343667f9a82a252743f4e8f67ce420

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