VYPR
High severity8.8NVD Advisory· Published May 1, 2025· Updated Jul 30, 2026

CVE-2025-37777

CVE-2025-37777

Description

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

ksmbd: fix use-after-free in __smb2_lease_break_noti()

Move tcp_transport free to ksmbd_conn_free. If ksmbd connection is referenced when ksmbd server thread terminates, It will not be freed, but conn->tcp_transport is freed. __smb2_lease_break_noti can be performed asynchronously when the connection is disconnected. __smb2_lease_break_noti calls ksmbd_conn_write, which can cause use-after-free when conn->ksmbd_transport is already freed.

AI Insight

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

Affected products

7
  • Linux/Kernel5 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<6.6.101
    • cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 5.15
  • Linux/Ksmbdllm-fuzzy
  • osv-coords
    Range: >= 5.15.0, < 6.6.101

Patches

Vulnerability mechanics

References

4

News mentions

0

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