What’s Vulnerable › Vulnerabilities

CVE-2025-71204: smb/server: fix refcount leak in parse_durable_handle_context()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-14 · updated 2026-07-30

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix refcount leak in parse_durable_handle_context() When the command is a replay operation and -ENOEXEC is returned, the refcount of ksmbd_file must be released.

Affected products

• Linux kernel: from 6.6.32 before 6.6.124; from 6.9 before 6.12.70; from 6.13 before 6.18.10; 6.19-rc1, 6.19-rc2, 6.19-rc3 — fixed in 6.12.70, 6.18.10, 6.6.124

How to fix

Upgrade to a fixed version: Linux kernel 6.12.70, 6.18.10, 6.6.124. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07df5ff4f6490a5c96715b7c562e0b2908422e04
• https://git.kernel.org/stable/c/3296c3012a9d9a27e81e34910384e55a6ff3cff0
• https://git.kernel.org/stable/c/70dd3513ed6ac8c6cab23f72c5b19f44ca89de9d
• https://git.kernel.org/stable/c/8a15107c4c031fb19737bf2eb4000f847f1d5e4c

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