CVE-2026-31537

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirect_socket.send_io.bcredits It turns out that our code will corrupt the stream of reassabled data transfer messages when we trigger an immendiate (empty) send. In order to fix this we'll have a single 'batch' credit per connection. And code getting that credit is free to use as much messages until remaining_length reaches 0, then the batch credit it given back and the next logical send can happen.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/34abd408c8ba24d7c97bd02ba874d8c714f49db1	Patch
https://git.kernel.org/stable/c/5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7	Patch
https://git.kernel.org/stable/c/79242e7b6bc63efec28b7c235bc320806afce6c0	Patch

Configurations

Configuration 1 (hide)

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

History

28 Apr 2026, 19:09

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
References	~~() https://git.kernel.org/stable/c/34abd408c8ba24d7c97bd02ba874d8c714f49db1 -~~	() https://git.kernel.org/stable/c/34abd408c8ba24d7c97bd02ba874d8c714f49db1 - Patch
References	~~() https://git.kernel.org/stable/c/5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7 -~~	() https://git.kernel.org/stable/c/5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7 - Patch
References	~~() https://git.kernel.org/stable/c/79242e7b6bc63efec28b7c235bc320806afce6c0 -~~	() https://git.kernel.org/stable/c/79242e7b6bc63efec28b7c235bc320806afce6c0 - Patch
CPE		cpe:2.3:o:linux:linux_kernel::::::::
First Time		Linux Linux linux Kernel

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-2026-31537

Mitre link : CVE-2026-31537

CVE.ORG link : CVE-2026-31537

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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