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High severity7.5NVD Advisory· Published Sep 5, 2025· Updated Jul 30, 2026

CVE-2025-39720

CVE-2025-39720

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix refcount leak causing resource not released

When ksmbd_conn_releasing(opinfo->conn) returns true,the refcount was not decremented properly, causing a refcount leak that prevents the count from reaching zero and the memory from being released.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6
  • Linux/Kernel5 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<6.6.103
    • cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 5.15
  • osv-coords
    pkg:linux/kernel
    Range: >= 5.15.0, < 6.6.103

Patches

Vulnerability mechanics

References

4

News mentions

0

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