CVE-2025-37899
High · CVSS 8.8- CVSS
- 8.8
- nvd
- EPSS
- —
- KEV
- No
- Class
- oss containerizable
- CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.
Affected packages
| Linux | Kernel | 5.15.0 → 6.1.159 |
| Linux | Kernel | 6.13.0 → 6.14.6 |
| Linux | Kernel | 6.2.0 → 6.6.119 |
| Linux | Kernel | 6.7.0 → 6.12.28 |
References
- https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43
- https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b
- https://git.kernel.org/stable/c/70ad6455139e26e85f48f95d0e21f351c1909342
- https://git.kernel.org/stable/c/931dc8a3670f71c45c0b1379ea4e92dafbda1aca
- https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f
- https://news.ycombinator.com/item?id=44081338
- https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/
Status: profiled · ingested 2026-07-30T12:00:00.000Z