CVE-2025-38191 — ksmbd: fix null pointer dereference in destroy_previous_session
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in destroy_previous_session If client set ->PreviousSessionId on kerber…
Published: 2025-07-04 · CVSS: 7.5 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in destroy_previous_session If client set ->PreviousSessionId on kerberos session setup stage, NULL pointer dereference error will happen. Since sess->user is not set yet, It can pass the user argument as NULL to destroy_previous_session. sess->user will be set in ksmbd_krb5_authenticate(). So this patch move calling destroy_previous_session() after ksmbd_krb5_authenticate().
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7