CVE-2022-49316

NFSv4: Don't hold the layoutget locks across multiple RPC calls

Medium · published February 26, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
10.7
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

NFSv4: Don't hold the layoutget locks across multiple RPC calls

When doing layoutget as part of the open() compound, we have to be

careful to release the layout locks before we can call any further RPC

calls, such as setattr(). The reason is that those calls could trigger

a recall, which could deadlock.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00211 · 10.7th percentile
Published
2025-02-26T02:10Z
EPSS history
Timeline
  • 26 FEB 02:10Z
    NFSv4: Don't hold the layoutget locks across multiple RPC calls
    cvelistv5