CVE-2025-37777
ksmbd: fix use-after-free in __smb2_lease_break_noti()
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 __smb2_lease_break_noti() Move tcp_transport free to ksmbd_conn_free. If ksmbd connection is referenced when ksmbd server thread terminates, It will not be freed, but conn->tcp_transport is freed. __smb2_lease_break_noti can be performed asynchronously when the connection is disconnected. __smb2_lease_break_noti calls ksmbd_conn_write, which can cause use-after-free when conn->ksmbd_transport is already freed.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < 1da8bd9a10ecd718692732294d15fd801c0eabb5 0626e6641f6b467447c81dd7678a69c66f7746cf < 1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e 0626e6641f6b467447c81dd7678a69c66f7746cf < e59796fc80603bcd8569d4d2e10b213c1918edb4 0626e6641f6b467447c81dd7678a69c66f7746cf < 21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/1da8bd9a10ecd718692732294d15fd801c0eabb5 git.kernel.org: https://git.kernel.org/stable/c/1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e git.kernel.org: https://git.kernel.org/stable/c/e59796fc80603bcd8569d4d2e10b213c1918edb4 git.kernel.org: https://git.kernel.org/stable/c/21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de