Riskcovery

CVE-2026-31537

smb: server: make use of smbdirect_socket.send_io.bcredits

State
Published
Severity
Not scored
Published
Apr 24, 2026
Updated
May 11, 2026
Reserved
Mar 9, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7Affected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 79242e7b6bc63efec28b7c235bc320806afce6c0Affected
  • 0626e6641f6b467447c81dd7678a69c66f7746cf to before 34abd408c8ba24d7c97bd02ba874d8c714f49db1Affected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 6.18.11 through 6.18.*Not affected
  • 6.19.1 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.