CVE-2025-37899
ksmbd: fix use-after-free in session logoff
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 20, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < 931dc8a3670f71c45c0b1379ea4e92dafbda1aca 0626e6641f6b467447c81dd7678a69c66f7746cf < 70ad6455139e26e85f48f95d0e21f351c1909342 0626e6641f6b467447c81dd7678a69c66f7746cf < d5ec1d79509b3ee01de02c236f096bc050221b7f 0626e6641f6b467447c81dd7678a69c66f7746cf < 02d16046cd11a5c037b28c12ffb818c56dd3ef43 0626e6641f6b467447c81dd7678a69c66f7746cf < 2fc9feff45d92a92cd5f96487655d5be23fb7e2b
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/931dc8a3670f71c45c0b1379ea4e92dafbda1aca git.kernel.org: https://git.kernel.org/stable/c/70ad6455139e26e85f48f95d0e21f351c1909342 git.kernel.org: https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f git.kernel.org: https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43 git.kernel.org: https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b sean.heelan.io: 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/ news.ycombinator.com: https://news.ycombinator.com/item?id=44081338