ksmbd: fix null pointer dereference in destroy_previous_session
CVE-2025-38191 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-38191, released July 4, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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().
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.147-1 | DEBIAN-CVE-2025-38191 | Jul 4, 2025 |
| linux · Debian 13.5 (trixie) | 6.12.35-1 | DEBIAN-CVE-2025-38191 | Jul 4, 2025 |
| linux · Debian 14 | 6.12.35-1 | DEBIAN-CVE-2025-38191 | Jul 4, 2025 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.