CVE-2026-31535: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: smb: client: make use of 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.

Засегнати продукти

• Linux Linux: 5fb9b459b3686e366640edd4e62805ef7b4de927 преди f664e6e8a81103cb45c8802a9bc7499e0902c458; 5fb9b459b3686e366640edd4e62805ef7b4de927 преди be8845ad5d6558703d20567d8702155598325db8; 5fb9b459b3686e366640edd4e62805ef7b4de927 преди 9911b1ed187a770a43950bf51f340ad4b7beecba
• Linux Linux: 6.18; преди 6.18; 6.18.11 до 6.18.*; 6.19.1 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-31535
• https://nvd.nist.gov/vuln/detail/CVE-2026-31535
• https://git.kernel.org/stable/c/f664e6e8a81103cb45c8802a9bc7499e0902c458
• https://git.kernel.org/stable/c/be8845ad5d6558703d20567d8702155598325db8
• https://git.kernel.org/stable/c/9911b1ed187a770a43950bf51f340ad4b7beecba