Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbd_connection leak on cifs_get_tcp_session() error When an RDMA connection is successfully established via smbd_get_connection() but cifs_get_tcp_session() later fails (e.g. kthread_create() returns an error), the error path frees tcp_ses without first destroying the smbd_connection. Fix this by calling smbd_destroy() in the out_err cleanup path before kfree(tcp_ses). smbd_destroy() safely handles the case where smbd_conn is NULL, so it can be called unconditionally.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before 3164402c58940ff58a3cecdb026405f07b0253af; affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before e3344bb0ff5ec8a276f42239e140f5442841ef23; affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before 5c908e49d349266dff0c86dda6a05df0ff19b824; affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before 928edc4bd6a617caabeb575fc13c254d9df623c4; affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before b26a3fcf2f1c2cadba400290b639f01395db8fc8; affected 2f8946464b11822169b9f10c7cf58a2440b51d54 before e75c96157d45e498970158c8f7373d90102e33b9 |
| Linux / Linux | affected 4.16; unaffected 0 before 4.16; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3164402c58940ff58a3cecdb026405f07b0253af
- https://git.kernel.org/stable/c/e3344bb0ff5ec8a276f42239e140f5442841ef23
- https://git.kernel.org/stable/c/5c908e49d349266dff0c86dda6a05df0ff19b824
- https://git.kernel.org/stable/c/928edc4bd6a617caabeb575fc13c254d9df623c4
- https://git.kernel.org/stable/c/b26a3fcf2f1c2cadba400290b639f01395db8fc8
- https://git.kernel.org/stable/c/e75c96157d45e498970158c8f7373d90102e33b9