CVE-2025-38352

KEV
Published: Lug 22, 2025 Last Modified: Gen 08, 2026 EU-VD ID: EUVD-2025-22297
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,4
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: local
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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

posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

If an exiting non-autoreaping task has already passed exit_notify() and
calls handle_posix_cpu_timers() from IRQ, it can be reaped by its parent
or debugger right after unlock_task_sighand().

If a concurrent posix_cpu_timer_del() runs at that moment, it won't be
able to detect timer->it.cpu.firing != 0: cpu_timer_task_rcu() and/or
lock_task_sighand() will fail.

Add the tsk->exit_state check into run_posix_cpu_timers() to fix this.

This fix is not needed if CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, because
exit_task_work() is called before exit_notify(). But the check still
makes sense, task_work_add(&tsk->posix_cputimers_work.work) will fail
anyway in this case.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0025
Percentile
0,5th
Updated

EPSS Score Trend (Last 90 Days)

367

Time-of-check Time-of-use (TOCTOU) Race Condition

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Other Non-Repudiation
Potential Impacts:
Alter Execution Logic Unexpected State Modify Application Data Modify Files Or Directories Modify Memory Other Hide Activities
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
View CWE Details
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.13 (inclusive)
To 6.15.3 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.2 (inclusive)
To 6.6.94 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.16 (inclusive)
To 6.1.142 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.7 (inclusive)
To 6.12.34 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version 6.16
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 2.6.36 (inclusive)
To 5.4.295 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.5 (inclusive)
To 5.10.239 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.11 (inclusive)
To 5.15.186 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

Product Information
Vendor Debian
Product Debian Linux
Version 11.0
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/farazsth98/chronomaly
https://github.com/farazsth98/chronomaly
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025…
https://git.kernel.org/stable/c/2c72fe18cc5f9f1750f5bc148cf…
https://git.kernel.org/stable/c/2c72fe18cc5f9f1750f5bc148cf1c94c29e106ff
https://git.kernel.org/stable/c/2f3daa04a9328220de46f0d5c91…
https://git.kernel.org/stable/c/2f3daa04a9328220de46f0d5c919a6c0073a9f0b
https://git.kernel.org/stable/c/460188bc042a3f40f72d34b9f7f…
https://git.kernel.org/stable/c/460188bc042a3f40f72d34b9f7fc6ee66b0b757b
https://git.kernel.org/stable/c/764a7a5dfda23f69919441f2eac…
https://git.kernel.org/stable/c/764a7a5dfda23f69919441f2eac2a83e7db6e5bb
https://git.kernel.org/stable/c/78a4b8e3795b31dae58762bc091…
https://git.kernel.org/stable/c/78a4b8e3795b31dae58762bc091bb0f4f74a2200
https://git.kernel.org/stable/c/c076635b3a42771ace7d276de8d…
https://git.kernel.org/stable/c/c076635b3a42771ace7d276de8dc3bc76ee2ba1b
https://git.kernel.org/stable/c/c29d5318708e67ac13c1b6fc100…
https://git.kernel.org/stable/c/c29d5318708e67ac13c1b6fc1007d179fb65b4d7
https://git.kernel.org/stable/c/f90fff1e152dedf52b932240ebb…
https://git.kernel.org/stable/c/f90fff1e152dedf52b932240ebbd670d83330eca
https://lists.debian.org/debian-lts-announce/2025/10/msg000…
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
https://lists.debian.org/debian-lts-announce/2025/10/msg000…
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html