CVE-2026-31539 | BDVDB-2026-328778 Detail

Description#

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.

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Exploit#

History#

1. Version 12026-04-24Record published in the CVE List.
2. Version 22026-10-19Most recent update recorded in the CVE List.