Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available The logic off managing recv credits by counting posted recv_io and granted credits is racy. That's because the peer might already consumed a credit, but between receiving the incoming recv at the hardware and processing the completion in the 'recv_done' functions we likely have a window where we grant credits, which don't really exist. So we better have a decicated counter for the available credits, which will be incremented when we posted new recv buffers and drained when we grant the credits to the peer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5fb9b459b3686e366640edd4e62805ef7b4de927 before e811e60e1cc79923c4388146eb1fa26a7482731e; affected 5fb9b459b3686e366640edd4e62805ef7b4de927 before f99996870222b598914a1f49d7375dc23752c237; affected 5fb9b459b3686e366640edd4e62805ef7b4de927 before 6e3c5052f9686192e178806e017b7377155f4bab |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.11 through 6.18.*; unaffected 6.19.1 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e811e60e1cc79923c4388146eb1fa26a7482731e
- https://git.kernel.org/stable/c/f99996870222b598914a1f49d7375dc23752c237
- https://git.kernel.org/stable/c/6e3c5052f9686192e178806e017b7377155f4bab
ADP enrichment
No English description supplied.
No references supplied.