CVE-2026-31539

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

28 Apr 2026, 18:54

Type Values Removed Values Added
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/6e3c5052f9686192e178806e017b7377155f4bab - () https://git.kernel.org/stable/c/6e3c5052f9686192e178806e017b7377155f4bab - Patch
References () https://git.kernel.org/stable/c/e811e60e1cc79923c4388146eb1fa26a7482731e - () https://git.kernel.org/stable/c/e811e60e1cc79923c4388146eb1fa26a7482731e - Patch
References () https://git.kernel.org/stable/c/f99996870222b598914a1f49d7375dc23752c237 - () https://git.kernel.org/stable/c/f99996870222b598914a1f49d7375dc23752c237 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel

27 Apr 2026, 15:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5

24 Apr 2026, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-04-24 15:16

Updated : 2026-06-17 10:33


NVD link : CVE-2026-31539

Mitre link : CVE-2026-31539

CVE.ORG link : CVE-2026-31539


JSON object : View

Products Affected

linux

  • linux_kernel