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CVE-2025-37777 – KSMbd Use-After-Free Vuln

The following table lists the changes that have been made to the
CVE-2025-37777 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 01, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de
    Added Reference https://git.kernel.org/stable/c/e59796fc80603bcd8569d4d2e10b213c1918edb4
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