Executive Summary

Informations
Name CVE-2025-23138 First vendor Publication 2025-04-16
Vendor Cve Last vendor Modification 2025-04-17

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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()?)

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-23138

Sources (Detail)

https://git.kernel.org/stable/c/205028ebba838938d3b264dda1d0708fa7fe1ade
https://git.kernel.org/stable/c/2d680b988656bb556c863d8b46d9b9096842bf3d
https://git.kernel.org/stable/c/471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284
https://git.kernel.org/stable/c/56ec918e6c86c1536870e4373e91eddd0c44245f
https://git.kernel.org/stable/c/6dafa27764183738dc5368b669b71e3d0d154f12
https://git.kernel.org/stable/c/8658c75343ed00e5e154ebbe24335f51ba8db547
https://git.kernel.org/stable/c/d40e3537265dea9e3c33021874437ff26dc18787
https://git.kernel.org/stable/c/f13abc1e8e1a3b7455511c4e122750127f6bc9b0
Source Url

Alert History

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0
Date Informations
2025-05-27 02:55:42
  • First insertion