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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-23138 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: watch_queue: fix pipe accounting mismatch Currently, watch_queue_set_size() modifies the pipe buffers charged to user->pipe_bufs without updating the pipe->nr_accounted on the pipe itself, due to the if (!pipe_has_watch_queue()) test in pipe_resize_ring(). This means that when the pipe is ultimately freed, we decrement user->pipe_bufs by something other than what than we had charged to it, potentially leading to an underflow. This in turn can cause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM. To remedy this, explicitly account for the pipe usage in watch_queue_set_size() to match the number set via account_pipe_buffers() (It's unclear why watch_queue_set_size() does not update nr_accounted; it may be due to intentional overprovisioning in watch_queue_set_size()?)


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/205028ebba838938d3b264dda1d0708fa7fe1ade kernel.org Patch 
https://git.kernel.org/stable/c/2d680b988656bb556c863d8b46d9b9096842bf3d kernel.org Patch 
https://git.kernel.org/stable/c/471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284 kernel.org Patch 
https://git.kernel.org/stable/c/56ec918e6c86c1536870e4373e91eddd0c44245f kernel.org Patch 
https://git.kernel.org/stable/c/6dafa27764183738dc5368b669b71e3d0d154f12 kernel.org Patch 
https://git.kernel.org/stable/c/8658c75343ed00e5e154ebbe24335f51ba8db547 kernel.org Patch 
https://git.kernel.org/stable/c/d40e3537265dea9e3c33021874437ff26dc18787 kernel.org Patch 
https://git.kernel.org/stable/c/f13abc1e8e1a3b7455511c4e122750127f6bc9b0 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html CVE Mailing List 
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html CVE Mailing List 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-23138
NVD Published Date:
04/16/2025
NVD Last Modified:
11/04/2025
Source:
kernel.org