CVE-2025-37778 – Kerberos SMBD Dangling Pointer

The following table lists the changes that have been made to the
CVE-2025-37778 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 dangling pointer in krb_authenticate

    krb_authenticate frees sess->user and does not set the pointer
    to NULL. It calls ksmbd_krb5_authenticate to reinitialise
    sess->user but that function may return without doing so. If
    that happens then smb2_sess_setup, which calls krb_authenticate,
    will be accessing free’d memory when it later uses sess->user.

    Added Reference https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325
    Added Reference https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f
    Added Reference https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e
    Added Reference https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10
    Added Reference https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6
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